HD Style N Units

Select An Efficiency:

81%80%

HDA-B-N – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-NF	PDF	150	122	10 to 1	3750	0.44	100	1125	0.02	24.04	30.61	45.16	18.19	244	4	2.5
HDA200-B-NF	PDF	200	162	10 to 1	5000	0.78	100	1500	0.06	24.04	30.61	45.16	18.19	244	4	2.5
HDA250-B-NF	PDF	250	202	5 to 1	6250	0.79	100	1875	0.07	27.29	30.61	45.16	18.19	268	4	2.5
HDA250-B-NF (6)	PDF	250	202	10 to 1	6250	0.56	100	1875	0.05	30.54	30.61	45.16	18.19	564	4	2.5
HDA300-B-NF	PDF	300	243	10 to 1	7500	0.8	100	2250	0.07	30.54	30.61	45.16	18.19	278	4	2.5
HDA350-B-NF	PDF	350	284	5 to 1	8750	0.81	100	2625	0.08	33.79	30.61	45.16	18.19	389	4	2.5
HDA350-B-NF (8)	PDF	350	284	10 to 1	8750	0.67	100	2625	0.06	37.04	30.61	45.16	18.19	668	4	2.5
HDA400-B-NF	PDF	400	324	10 to 1	10000	0.88	100	3000	0.08	37.04	30.61	45.16	18.19	439	4	2.5
HDA500-B-NF	PDF	500	405	10 to 1	12500	0.96	100	3750	0.09	43.54	30.61	45.16	18.19	480	5	N/a
HDA600-B-NF	PDF	600	486	10 to 1	15000	1.02	100	4500	0.1	50.04	30.61	45.16	18.19	522	5	N/a

Note: For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-NT	PDF	150	122	10 to 1	3750	0.87	100	1125	0.03	24.04	30.61	45.16	18.19	244	4	2.5
HDA200-B-NT	PDF	200	162	10 to 1	5000	1.55	100	1500	0.12	24.04	30.61	45.16	18.19	244	4	2.5
HDA250-B-NT	PDF	250	202	5 to 1	6250	0.79	100	1875	0.07	27.29	30.61	45.16	18.19	268	4	2.5
HDA250-B-NT (6)	PDF	250	202	10 to 1	6250	0.56	100	1875	0.05	30.54	30.61	45.16	18.19	564	4	2.5
HDA300-B-NT	PDF	300	243	10 to 1	7500	0.8	100	2250	0.07	30.54	30.61	45.16	18.19	278	4	2.5
HDA350-B-NT	PDF	350	284	5 to 1	8750	0.81	100	2625	0.08	33.79	30.61	45.16	18.19	389	4	2.5
HDA350-B-NT (8)	PDF	350	284	10 to 1	8750	0.67	100	2625	0.06	37.04	30.61	45.16	18.19	668	4	2.5
HDA400-B-NT	PDF	400	324	10 to 1	10000	1.75	200	3000	0.16	37.04	30.61	45.16	18.19	439	4	2.5
HDA500-B-NT	PDF	500	405	10 to 1	12500	1.91	200	3750	0.18	43.54	30.61	45.16	18.19	480	5	N/a
HDA600-B-NT	PDF	600	486	10 to 1	15000	2.05	200	4500	0.19	50.04	30.61	45.16	18.19	522	5	N/a

Note: For Propane gas, turndown is 60% of stated natural gas turndown.

HDA-B-N – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-NT	PDF	150	120	10 to 1	5556	0.39	100	1111	0.02	21.99	30.6	43.06	22.03	244	4	2.5
HDA200-B-NT	PDF	200	160	10 to 1	7407	0.67	100	1481	0.03	21.99	30.6	43	21.98	232	4	2.5
HDA250-B-NT	PDF	250	200	5 to 1	9259	0.83	100	1852	0.04	25.24	30.6	43	21.98	268	4	2.5
HDA250-B-NT (6)	PDF	250	200	10 to 1	9259	0.69	100	1852	0.03	25.24	30.6	43	21.98	278	4	2.5
HDA300-B-NT	PDF	300	240	10 to 1	11111	0.96	100	2222	0.05	28.49	30.6	43	21.98	278	4	2.5
HDA350-B-NT	PDF	350	280	5 to 1	12963	1.09	100	2593	0.06	31.74	30.6	43	21.98	389	4	2.5
HDA350-B-NT (8)	PDF	350	280	10 to 1	12963	0.93	100	2593	0.05	31.74	30.6	43	21.98	439	4	2.5
HDA400-B-NT	PDF	400	320	10 to 1	14815	1.2	100	2963	0.06	34.99	30.6	43	21.98	439	4	2.5
HDA500-B-NT	PDF	500	400	10 to 1	18519	1.38	100	3704	0.07	41.49	30.6	43	21.98	480	5	N/a
HDA600-B-NT	PDF	600	480	10 to 1	22222	1.52	100	4444	0.08	47.99	30.6	43	21.98	522	5	N/a
HDA150-B-NT-X2	PDF	300	240	20 to 1	5556	0.78	200	1111	0.04	21.99	61.2	43.06	22.03	487	8	5
HDA200-B-NT-X2	PDF	400	320	20 to 1	7407	1.34	200	1481	0.06	21.99	60.18	43	21.98	487	8	5
HDA250-B-NT-X2	PDF	500	400	10 to 1	9259	1.66	200	1852	0.08	25.24	60.18	43	21.98	564	8	5
HDA250-B-NT-X2 (6)	PDF	500	400	20 to 1	9259	1.38	200	1852	0.06	25.24	60.18	43	21.98	585	8	5
HDA300-B-NT-X2	PDF	600	480	20 to 1	11111	1.93	200	2222	0.1	28.49	60.18	43	21.98	585	8	5
HDA350-B-NT-X2	PDF	700	560	10 to 1	12963	2.17	200	2593	0.11	31.74	60.18	43	21.98	668	8	5
HDA350-B-NT-X2 (8)	PDF	700	560	20 to 1	12963	1.86	200	2593	0.09	31.74	60.18	43	21.98	923	8	5
HDA400-B-NT-X2	PDF	800	640	20 to 1	14815	2.39	200	2963	0.12	34.99	60.18	43	21.98	923	8	5
HDA500-B-NT-X2	PDF	1000	800	20 to 1	18519	2.75	200	3704	0.14	41.49	60.18	43	21.98	1011	10	N/a
HDA600-B-NT-X2	PDF	1150	960	20 to 1	22222	3.04	200	4444	0.16	47.99	60.18	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-NF	PDF	150	120	10 to 1	5556	0.39	100	1111	0.02	21.99	30.6	43.06	22.03	244	4	2.5
HDA200-B-NF	PDF	200	160	10 to 1	7407	0.67	100	1481	0.03	21.99	30.6	43	21.98	232	4	2.5
HDA250-B-NF	PDF	250	200	5 to 1	9259	0.83	100	1852	0.04	25.24	30.6	43	21.98	268	4	2.5
HDA250-B-NF (6)	PDF	250	200	10 to 1	9259	0.69	100	1852	0.03	25.24	30.6	43	21.98	278	4	2.5
HDA300-B-NF	PDF	300	240	10 to 1	11111	0.96	100	2222	0.05	28.49	30.6	43	21.98	278	4	2.5
HDA350-B-NF	PDF	350	280	5 to 1	12963	1.09	100	2593	0.06	31.74	30.6	43	21.98	389	4	2.5
HDA350-B-NF (8)	PDF	350	280	10 to 1	12963	0.93	100	2593	0.05	31.74	30.6	43	21.98	439	4	2.5
HDA400-B-NF	PDF	400	320	10 to 1	14815	1.2	100	2963	0.06	34.99	30.6	43	21.98	439	4	2.5
HDA500-B-NF	PDF	500	400	10 to 1	18519	1.38	100	3704	0.07	41.49	30.6	43	21.98	480	5	N/a
HDA600-B-NF	PDF	600	480	10 to 1	22222	1.52	100	4444	0.08	47.99	30.6	43	21.98	522	5	N/a
HDA150-B-NF-X2	PDF	150	120	20 to 1	5556	0.78	200	1111	0.04	21.99	60.18	43.06	21.98	488	8	5
HDA200-B-NF-X2	PDF	400	320	20 to 1	7407	1.34	200	1481	0.06	21.99	60.18	43	21.98	487	8	5
HDA250-B-NF-X2	PDF	500	400	10 to 1	9259	1.66	200	1852	0.08	25.24	60.18	43	21.98	564	8	5
HDA250-B-NF-X2 (6)	PDF	500	400	10 to 1	9259	1.38	200	1852	0.06	25.24	60.18	43	21.98	585	8	5
HDA300-B-NF-X2	PDF	600	480	20 to 1	11111	1.93	200	2222	0.1	28.49	60.18	43	21.98	585	8	5
HDA350-B-NF-X2	PDF	700	560	10 to 1	12963	2.17	200	2593	0.11	31.74	60.18	43	21.98	668	8	5
HDA350-B-NF-X2 (8)	PDF	700	560	10 to 1	12963	1.86	200	2593	0.09	31.74	60.18	43	21.98	923	8	5
HDA400-B-NF-X2	PDF	800	640	20 to 1	14815	2.39	200	2963	0.12	34.99	60.18	43	21.98	923	8	5
HDA500-B-NF-X2	PDF	1000	800	20 to 1	18519	2.75	200	3704	0.14	41.49	60.18	43	21.98	1011	10	N/a
HDA600-B-NF-X2	PDF	1200	960	20 to 1	22222	3.04	200	4444	0.16	47.99	60.18	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

80%81% (Coming Soon)

HDA-F-N – Vertical Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-F-NT	PDF	150	120	10 to 1	5556	0.39	100	1111	0.02	21.99	30.6	43.06	22.03	244	4	2.5
HDA200-F-NT	PDF	200	160	10 to 1	7407	0.67	100	1481	0.03	21.44	31.39	42.84	22.76	232	4	2.5
HDA250-F-NT	PDF	250	200	5 to 1	9259	0.83	100	1852	0.04	24.69	31.39	42.84	22.76	268	4	2.5
HDA250-F-NT (6)	PDF	250	200	10 to 1	9259	0.69	100	1852	0.03	27.43	41.49	42.84	22.25	278	4	2.5
HDA300-F-NT	PDF	300	240	10 to 1	11111	0.96	100	2222	0.05	27.94	31.39	42.84	22.76	278	4	2.5
HDA350-F-NT	PDF	350	280	5 to 1	12963	1.09	100	2593	0.06	31.19	31.39	42.84	22.76	389	4	2.5
HDA350-F-NT (8)	PDF	350	280	10 to 1	12963	0.93	100	2593	0.05	33.93	41.49	42.84	22.25	439	4	2.5
HDA400-F-NT	PDF	400	320	10 to 1	14815	1.2	100	2963	0.06	34.44	31.39	42.84	22.76	439	4	2.5
HDA500-F-NT	PDF	500	400	10 to 1	18519	1.38	100	3704	0.07	40.94	31.39	42.84	22.76	480	5	N/a
HDA600-F-NT	PDF	600	480	10 to 1	22222	1.52	100	4444	0.08	47.44	31.39	42.84	22.76	522	5	N/a
HDA150-F-NT-X2	PDF	150	120	20 to 1	11112	0.78	200	2222	0.04	41.74	31.39	43.06	21.98	488	8	5
HDA200-F-NT-X2	PDF	400	320	20 to 1	14814	1.34	200	2962	0.06	41.74	31.39	43	21.98	487	8	5
HDA250-F-NT-X2	PDF	500	400	10 to 1	18518	1.66	200	3704	0.08	48.24	31.39	43	21.98	564	8	5
HDA250-F-NT-X2 (6)	PDF	500	400	10 to 1	18518	1.38	200	3704	0.06	54.74	31.39	43	21.98	585	8	5
HDA300-F-NT-X2	PDF	600	480	20 to 1	22222	1.93	200	4444	0.1	54.74	31.39	43	21.98	585	8	5
HDA350-F-NT-X2	PDF	700	560	10 to 1	25926	2.17	200	5186	0.11	61.24	31.39	43	21.98	668	8	5
HDA350-F-NT-X2 (8)	PDF	700	560	10 to 1	25926	1.86	200	5186	0.09	67.74	31.39	43	21.98	923	8	5
HDA400-F-NT-X2	PDF	800	640	20 to 1	29630	2.39	200	5926	0.12	67.74	31.39	43	21.98	923	8	5
HDA500-F-NT-X2	PDF	1000	800	20 to 1	37038	2.75	200	7408	0.14	80.74	31.39	43	21.98	1011	10	N/a
HDA600-F-NT-X2	PDF	1200	960	20 to 1	44444	3.04	200	8888	0.16	93.74	31.39	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-F-NF-X2	PDF	150	120	20 to 1	11112	0.78	200	2222	0.04	41.74	41.49	43.06	21.98	488	8	5
HDA200-F-NF-X2	PDF	400	320	20 to 1	14814	1.34	200	2962	0.06	41.74	41.49	43	21.98	487	8	5
HDA250-F-NF-X2	PDF	500	400	10 to 1	18518	1.66	200	3704	0.08	48.24	41.49	43	21.98	564	8	5
HDA250-F-NF-X2 (6)	PDF	500	400	10 to 1	18518	1.38	200	3704	0.06	54.74	41.49	43	21.98	585	8	5
HDA300-F-NF-X2	PDF	600	480	20 to 1	22222	1.93	200	4444	0.1	54.74	41.49	43	21.98	585	8	5
HDA350-F-NF-X2	PDF	700	560	10 to 1	25926	2.17	200	5186	0.11	61.24	41.49	43	21.98	668	8	5
HDA350-F-NF-X2 (8)	PDF	700	560	10 to 1	25926	1.86	200	5186	0.09	67.74	41.49	43	21.98	923	8	5
HDA400-F-NF-X2	PDF	800	640	20 to 1	29630	2.39	200	5926	0.12	67.74	41.49	43	21.98	923	8	5
HDA500-F-NF-X2	PDF	1000	800	20 to 1	37038	2.75	200	7408	0.14	80.74	41.49	43	21.98	1011	10	N/a
HDA600-F-NF-X2	PDF	1200	960	20 to 1	44444	3.04	200	8888	0.16	93.74	41.49	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

80%81% (Coming Soon)

HDA-M-N – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF		Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-M-NT	PDF		150	120	10 to 1	5556	0.02	60	1852	0.01	30.6	21.98	43.06	22.03	244	4	2.5
HDA200-M-NT	PDF	N/a	200	160	10 to 1	7407	0.03	60	2469	0.01	31.39	21.44	43	21.98	232	4	2.5
HDA250-M-NT	PDF		250	200	5 to 1	9259	0.06	60	3086	0.01	31.39	24.69	43	21.98	268	4	2.5
HDA250-M-NT (6)	PDF		250	200	5 to 1	9259	0.08	60	3086	0.01	31.39	24.69	43	21.98	278	4	2.5
HDA300-M-NT	PDF		300	240	10 to 1	11111	0.11	60	3704	0.01	31.39	27.94	43	21.98	278	4	2.5
HDA350-M-NT	PDF		350	280	5 to 1	12963	0.17	60	4321	0.02	31.39	31.19	43	21.98	389	4	2.5
HDA350-M-NT (8)	PDF		350	280	10 to 1	12963	0.19	60	4321	0.03	31.39	31.19	43	21.98	439	4	2.5
HDA400-M-NT	PDF	N/a	400	320	10 to 1	14815	0.25	60	4938	0.03	31.39	34.44	43	21.98	439	4	2.5
HDA500-M-NT	PDF	N/a	500	400	10 to 1	18519	0.47	60	6173	0.06	31.39	40.94	43	21.98	480	5	N/a
HDA600-M-NT	PDF	N/a	600	480	10 to 1	22222	0.79	60	7407	0.1	31.39	47.44	43	21.98	522	5	N/a
HDA150-M-NT-X2	PDF		300	240	20 to 1	5556	0.04	120	1852	0.02	33.42	41.74	43.06	22.03	487	8	5
HDA200-M-NT-X2	PDF		400	320	20 to 1	7407	0.06	120	2469	0.02	33.42	41.74	43	21.98	487	8	5
HDA250-M-NT-X2	PDF		500	400	10 to 1	9259	0.12	120	3086	0.02	33.42	48.24	43	21.98	564	8	5
HDA250-M-NT-X2 (6)	PDF		500	400	20 to 1	9259	0.16	120	3086	0.02	33.42	54.74	43	21.98	585	8	5
HDA300-M-NT-X2	PDF		600	480	20 to 1	11111	1.92	120	3704	0.1	33.42	54.74	43	21.98	585	8	5
HDA350-M-NT-X2	PDF		700	560	10 to 1	12963	0.34	120	4321	0.04	33.42	61.24	43	21.98	668	8	5
HDA350-M-NT-X2 (8)	PDF		700	560	20 to 1	12963	0.38	120	4321	0.06	33.42	67.74	43	21.98	923	8	5
HDA400-M-NT-X2	PDF		800	640	20 to 1	14815	0.5	120	4938	0.06	33.42	67.74	43	21.98	923	8	5
HDA500-M-NT-X2	PDF		1000	800	20 to 1	18519	0.94	120	6173	0.12	33.42	80.74	43	21.98	1011	10	N/a
HDA600-M-NT-X2	PDF		1150	960	20 to 1	22222	1.58	120	7407	0.2	33.42	93.74	43	21.98	1086	10	N/a

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-M-NF-X2	PDF	150	120	20 to 1	5556	0.04	120	1852	0.02	41.99	41.74	43.06	21.98	488	8	5
HDA200-M-NF-X2	PDF	400	320	20 to 1	7407	0.06	120	2469	0.02	41.99	41.74	43	21.98	487	8	5
HDA250-M-NF-X2	PDF	500	400	10 to 1	9259	0.12	120	3086	0.02	41.99	48.24	43	21.98	564	8	5
HDA250-M-NF-X2 (6)	PDF	500	400	10 to 1	9259	0.16	120	3086	0.02	41.99	54.74	43	21.98	585	8	5
HDA300-M-NF-X2	PDF	600	480	20 to 1	11111	0.22	120	3704	0.02	41.99	54.74	43	21.98	585	8	5
HDA350-M-NF-X2	PDF	700	560	10 to 1	12963	0.34	120	4321	0.04	41.99	61.24	43	21.98	668	8	5
HDA350-M-NF-X2 (8)	PDF	700	560	10 to 1	12963	0.38	120	4321	0.06	41.99	67.74	43	21.98	923	8	5
HDA400-M-NF-X2	PDF	800	640	20 to 1	14815	0.5	120	4938	0.06	41.99	67.74	43	21.98	923	8	5
HDA500-M-NF-X2	PDF	1000	800	20 to 1	18519	0.94	120	6173	0.12	41.99	80.74	43	21.98	1011	10	N/a
HDA600-M-NF-X2	PDF	1200	960	20 to 1	22222	1.58	120	7407	0.2	41.99	93.77	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

80%81% (Coming Soon)

HDA-I-N – Vertical Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-I-NT	PDF	150	120	10 to 1	5556	0.02	60	1852	0.01	30.6	21.98	43.06	22.03	244	4	2.5
HDA200-I-NT	PDF	200	160	10 to 1	7407	0.03	60	2469	0.01	29.98	21.99	42.84	22.76	232	4	2.5
HDA250-I-NT	PDF	250	200	5 to 1	9259	0.06	60	3086	0.01	29.98	25.24	42.84	22.76	268	4	2.5
HDA250-I-NT (6)	PDF	250	200	5 to 1	9259	0.08	60	3086	0.01	30.09	28.49	42.84	22.25	278	4	2.5
HDA300-I-NT	PDF	300	240	10 to 1	11111	0.11	60	3704	0.01	29.98	28.49	42.84	22.76	278	4	2.5
HDA350-I-NT	PDF	350	280	5 to 1	12963	0.17	60	4321	0.02	29.98	31.74	42.84	22.76	389	4	2.5
HDA350-I-NT (8)	PDF	350	280	10 to 1	12963	0.19	60	4321	0.03	30.09	34.99	42.84	22.25	439	4	2.5
HDA400-I-NT	PDF	400	320	10 to 1	14815	0.25	60	4938	0.03	29.98	34.99	42.84	22.76	439	4	2.5
HDA500-I-NT	PDF	500	400	10 to 1	18519	0.47	60	6173	0.06	29.98	41.49	42.84	22.76	480	5	N/a
HDA600-I-NT	PDF	600	480	10 to 1	22222	0.79	60	7407	0.1	29.98	47.99	42.84	22.76	522	5	N/a
HDA150-I-NT-X2	PDF	150	120	20 to 1	11112	0.04	120	3704	0.02	60.18	21.99	43.06	21.98	488	8	5
HDA200-I-NT-X2	PDF	400	320	20 to 1	14814	0.06	120	4938	0.02	60.18	21.99	43	21.98	487	8	5
HDA250-I-NT-X2	PDF	500	400	10 to 1	18518	0.12	120	6172	0.02	60.18	25.24	43	21.98	564	8	5
HDA250-I-NT-X2 (6)	PDF	500	400	10 to 1	18518	0.16	120	6172	0.02	60.18	25.24	43	21.98	585	8	5
HDA300-I-NT-X2	PDF	600	480	20 to 1	22222	0.22	120	7408	0.02	60.18	28.49	43	21.98	585	8	5
HDA350-I-NT-X2	PDF	700	560	10 to 1	25926	0.34	120	8642	0.04	60.18	31.74	43	21.98	668	8	5
HDA350-I-NT-X2 (8)	PDF	700	560	10 to 1	25926	0.38	120	8642	0.06	60.18	31.74	43	21.98	923	8	5
HDA400-I-NT-X2	PDF	800	640	20 to 1	29630	0.5	120	9876	0.06	60.18	34.99	43	21.98	923	8	5
HDA500-I-NT-X2	PDF	1000	800	20 to 1	37038	0.94	120	12346	0.12	60.18	41.49	43	21.98	1011	10	N/a
HDA600-I-NT-X2	PDF	1200	960	20 to 1	44444	1.58	120	14814	0.2	60.18	47.99	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-I-NF-X2	PDF	150	120	20 to 1	11112	0.04	120	3704	0.02	60.18	21.99	43.06	21.98	488	8	5
HDA200-I-NF-X2	PDF	400	320	20 to 1	14814	0.06	120	4938	0.02	60.18	21.99	43	21.98	487	8	5
HDA250-I-NF-X2	PDF	500	400	10 to 1	18518	0.12	120	6172	0.02	60.18	25.24	43	21.98	564	8	5
HDA250-I-NF-X2 (6)	PDF	500	400	10 to 1	18518	0.16	120	6172	0.02	60.18	25.24	43	21.98	585	8	5
HDA300-I-NF-X2	PDF	600	480	20 to 1	22222	0.22	120	7408	0.02	60.18	28.49	43	21.98	585	8	5
HDA350-I-NF-X2	PDF	700	560	10 to 1	25926	0.34	120	8642	0.04	60.18	31.74	43	21.98	668	8	5
HDA350-I-NF-X2 (8)	PDF	700	560	10 to 1	25926	0.38	120	8642	0.06	60.18	31.74	43	21.98	923	8	5
HDA400-I-NF-X2	PDF	800	640	20 to 1	29630	0.5	120	9876	0.06	60.18	34.99	43	21.98	923	8	5
HDA500-I-NF-X2	PDF	1000	800	20 to 1	37038	0.94	120	12346	0.12	60.18	41.49	43	21.98	1011	10	N/a
HDA600-I-NF-X2	PDF	1200	960	20 to 1	44444	1.58	120	14814	0.2	60.18	47.99	43	21.98	1086	10	N/a

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

81%80%

HDB-B Units

Images coming soon!

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB180-B-NT	PDF	180	146	10 to 1	4500	0.11	90	1500	0.01	28.94	21.78	79.86	18.19	174	4	2.5
HDB200-B-NT	PDF	200	162	10 to 1	5000	0.13	90	1667	0.02	28.94	21.78	79.86	18.19	174	4	2.5
HDB225-B-NT	PDF	225	182	5 to 1	5625	0.16	90	1875	0.02	28.94	21.78	79.86	18.19	174	4	2.5
HDB250-B-NT	PDF	250	202	5 to 1	6250	0.15	90	2083	0.02	28.94	21.78	79.86	18.19	216	4	2.5
HDB270-B-NT	PDF	270	219	10 to 1	6750	0.13	90	2250	0.02	28.94	21.78	79.86	18.19	279	4	2.5
HDB300-B-NT	PDF	300	243	10 to 1	7500	0.16	90	2500	0.02	28.94	21.78	79.86	18.19	279	4	2.5
HDB315-B-NT	PDF	315	255	5 to 1	7875	0.15	90	2625	0.02	32.19	21.78	79.86	18.19	279	4	2.5
HDB350-B-NT	PDF	350	284	5 to 1	8750	0.18	90	2917	0.02	32.19	21.78	79.86	18.19	342	4	2.5
HDB360-B-NT	PDF	360	292	10 to 1	9000	0.16	90	3000	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB375-B-NT	PDF	375	304	10 to 1	9375	0.18	90	3125	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB400-B-NT	PDF	400	324	10 to 1	10000	0.2	90	3333	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB500-B-NT	PDF	500	405	10 to 1	12500	0.21	90	4167	0.02	41.94	24.28	79.86	18.19	484	5
HDB600-B-NT	PDF	600	486	10 to 1	15000	0.23	90	5000	0.03	48.44	24.28	79.86	18.19	516	5

Note: For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB180-B-NF	PDF	180	146	10 to 1	4500	0.11	90	1500	0.01	28.94	21.78	79.86	18.19	174	4	2.5
HDB200-B-NF	PDF	200	162	10 to 1	5000	0.13	90	1667	0.02	28.94	21.78	79.86	18.19	174	4	2.5
HDB225-B-NF	PDF	225	182	5 to 1	5625	0.16	90	1875	0.02	28.94	21.78	79.86	18.19	174	4	2.5
HDB250-B-NF	PDF	250	202	5 to 1	6250	0.15	90	2083	0.02	28.94	21.78	79.86	18.19	216	4	2.5
HDB270-B-NF	PDF	270	219	10 to 1	6750	0.13	90	2250	0.02	28.94	21.78	79.86	18.19	279	4	2.5
HDB300-B-NF	PDF	300	243	10 to 1	7500	0.16	90	2500	0.02	28.94	21.78	79.86	18.19	279	4	2.5
HDB315-B-NF	PDF	315	255	5 to 1	7875	0.15	90	2625	0.02	32.19	21.78	79.86	18.19	279	4	2.5
HDB350-B-NF	PDF	350	284	5 to 1	8750	0.18	90	2917	0.02	32.19	21.78	79.86	18.19	342	4	2.5
HDB360-B-NF	PDF	360	292	10 to 1	9000	0.16	90	3000	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB375-B-NF	PDF	375	304	10 to 1	9375	0.18	90	3125	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB400-B-NF	PDF	400	324	10 to 1	10000	0.2	90	3333	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB500-B-NF	PDF	500	405	10 to 1	12500	0.21	90	4167	0.02	41.94	24.28	79.86	18.19	484	5
HDB600-B-NF	PDF	600	486	10 to 1	15000	0.23	90	5000	0.03	48.44	24.28	79.86	18.19	516	5

Note: For Propane gas, turndown is 60% of stated natural gas turndown.

HDB-B Units

Images coming soon!

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB200-B-NT	PDF	200	160	10 to 1	7407	0.34	90	1646	0.02	32.05	19.24	74.18	22.09	174	4	2.5
HDB250-B-NT	PDF	250	200	5 to 1	9259	0.39	90	2058	0.02	32.05	19.24	74.18	22.09	216	4	2.5
HDB300-B-NT	PDF	300	240	10 to 1	11111	0.44	90	2469	0.03	32.05	19.24	74.18	22.09	279	4	2.5
HDB350-B-NT	PDF	350	280	5 to 1	12963	0.48	90	2881	0.03	38.55	19.24	74.18	22.09	342	4	2.5
HDB360-B-NT		360	288	10 to 1	13333	0.42	90	2963	0.03	38.55	19.24	74.18	22.09	405	4	2.5
HDB400-B-NT	PDF	400	320	10 to 1	14815	0.52	90	3292	0.03	38.55	19.24	74.18	22.09	405	4	2.5
HDB500-B-NT	PDF	500	400	10 to 1	18519	0.57	75	4938	0.05	45.07	23.87	74.18	22.09	484	5
HDB600-B-NT	PDF	600	480	10 to 1	22222	0.61	75	5926	0.05	51.55	23.87	74.18	22.09	516	5
HDB180-B-NT-X2	PDF	360	288	10 to 1	6667	0.56	180	1481	0.04	32.05	38.48	74.18	22.09	348	8	5
HDB200-B-NT-X2	PDF	400	320	20 to 1	7407	0.68	180	1646	0.04	32.05	38.48	74.18	22.09	348	8	5
HDB250-B-NT-X2	PDF	500	400	10 to 1	9259	0.79	180	2058	0.05	32.05	38.48	74.18	22.09	432	8	5
HDB270-B-NT-X2		540	432	20 to 1	10000	0.73	180	2222	0.05	32.05	38.48	74.18	22.09	558	8	5
HDB300-B-NT-X2	PDF	600	480	20 to 1	11111	0.88	180	2469	0.06	32.05	38.48	74.18	22.09	558	8	5
HDB350-B-NT-X2	PDF	700	560	10 to 1	12963	0.96	180	2881	0.06	38.55	38.48	74.18	22.09	684	8	5
HDB360-B-NT-X2		720	576	20 to 1	13333	0.85	180	2963	0.05	38.55	38.48	74.18	22.09	810	8	5
HDB400-B-NT-X2	PDF	800	640	20 to 1	14815	1.04	180	3292	0.06	38.55	38.48	74.18	22.09	810	8	5
HDB500-B-NT-X2	PDF	1000	800	20 to 1	18519	1.13	150	4938	0.1	45.07	47.74	74.18	22.09	968	10
HDB600-B-NT-X2	PDF	1200	960	20 to 1	22222	1.22	150	5926	0.11	51.55	47.74	74.18	22.09	1032	10

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB180-B-NF-X2	PDF	360	288	10 to 1	6667	0.56	180	1481	0.04	32.05	38.48	74.18	22.09	348	8	5
HDB200-B-NF-X2	PDF	400	320	20 to 1	7407	0.68	180	1646	0.04	32.05	38.48	74.18	22.09	348	8	5
HDB250-B-NF-X2	PDF	500	400	10 to 1	9259	0.79	180	2058	0.05	32.05	38.48	74.18	22.09	432	8	5
HDB270-B-NF-X2		540	432	20 to 1	10000	0.73	180	2222	0.05	32.05	38.48	74.18	22.09	558	8	5
HDB300-B-NF-X2	PDF	600	480	20 to 1	11111	0.88	180	2469	0.06	32.05	38.48	74.18	22.09	558	8	5
HDB350-B-NF-X2	PDF	700	560	10 to 1	12963	0.96	180	2881	0.06	38.55	38.48	74.18	22.09	684	8	5
HDB360-B-NF-X2		720	576	20 to 1	13333	0.85	180	2963	0.05	38.55	38.48	74.18	22.09	810	8	5
HDB400-B-NF-X2	PDF	800	640	20 to 1	14815	1.04	180	3292	0.06	38.55	38.48	74.18	22.09	810	8	5
HDB500-B-NF-X2	PDF	1000	800	20 to 1	18519	1.13	150	4938	0.1	45.07	47.74	74.18	22.09	968	10
HDB600-B-NF-X2	PDF	1200	960	20 to 1	22222	1.22	150	5926	0.11	51.55	47.74	74.18	22.09	1032	10

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

80%81% (Coming Soon)

HDB-F Units

Images coming soon!

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB200-F-NT	PDF	200	160	10 to 1	7407	0.34	90	1646	0.02	22.33	35.02	71.84	23.48	174	4	2.5
HDB250-F-NT	PDF	250	200	5 to 1	9259	0.39	90	2058	0.02	25.58	35.02	71.84	23.48	216	4	2.5
HDB270-F-NT		270	216	10 to 1	10000	0.36	90	2222	0.02	28.83	35.02	74.18	22.09	279	4	2.5
HDB300-F-NT	PDF	300	240	10 to 1	11111	0.44	90	2469	0.03	28.83	35.02	71.84	23.48	279	4	2.5
HDB350-F-NT	PDF	350	280	5 to 1	12963	0.48	90	2881	0.03	32.08	35.02	71.84	23.48	342	4	2.5
HDB360-F-NT		360	288	10 to 1	13333	0.42	90	2963	0.03	35.33	35.02	74.18	22.09	405	4	2.5
HDB400-F-NT	PDF	400	320	10 to 1	14815	0.52	90	3292	0.03	35.33	35.02	71.84	23.48	405	4	2.5
HDB500-F-NT	PDF	500	400	10 to 1	18519	0.57	75	4938	0.05	41.83	43.02	71.84	23.48	484	5
HDB600-F-NT	PDF	600	480	10 to 1	22222	0.61	75	5926	0.05	48.33	43.02	71.84	23.48	516	5
HDB180-F-NT-X2	PDF	360	288	10 to 1	13334	0.56	180	2962	0.04	44.56	35.02	74.18	22.11	348	8	5
HDB200-F-NT-X2	PDF	400	320	20 to 1	14814	0.68	180	3292	0.04	44.56	35.02	74.18	22.11	348	8	5
HDB250-F-NT-X2	PDF	500	400	10 to 1	18518	0.79	180	4116	0.05	51.06	35.02	74.18	22.11	432	8	5
HDB270-F-NT-X2		540	432	20 to 1	20000	0.73	180	4444	0.05	57.56	35.02	74.18	22.11	558	8	5
HDB300-F-NT-X2	PDF	600	480	20 to 1	22222	0.88	180	4938	0.06	57.56	35.02	74.18	22.11	558	8	5
HDB350-F-NT-X2	PDF	700	560	10 to 1	25926	0.96	180	5762	0.06	64.06	35.02	74.18	22.11	684	8	5
HDB360-F-NT-X2		720	576	20 to 1	26666	0.85	180	5926	0.05	70.56	35.02	74.18	22.11	810	8	5
HDB400-F-NT-X2	PDF	800	640	20 to 1	29630	1.04	180	6584	0.06	70.56	35.02	74.18	22.11	810	8	5
HDB500-F-NT-X2	PDF	1000	800	20 to 1	37037	1.13	150	9876	0.1	83.56	43.02	74.18	22.11	968	10
HDB600-F-NT-X2	PDF	1200	960	20 to 1	44444	1.22	150	11852	0.11	96.56	43.02	74.18	22.11	1032	10

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB180-F-NF-X2	PDF	360	288	10 to 1	13334	0.56	180	2962	0.04	44.56	35.02	74.18	22.11	348	8	5
HDB200-F-NF-X2	PDF	400	320	20 to 1	14814	0.68	180	3292	0.04	44.56	35.02	74.18	22.11	348	8	5
HDB250-F-NF-X2	PDF	500	400	10 to 1	18518	0.79	180	4116	0.05	51.06	35.02	74.18	22.11	432	8	5
HDB270-F-NF-X2		540	432	20 to 1	20000	0.73	180	4444	0.05	57.56	35.02	74.18	22.11	558	8	5
HDB300-F-NF-X2	PDF	600	480	20 to 1	22222	0.88	180	4938	0.06	57.56	35.02	74.18	22.11	558	8	5
HDB350-F-NF-X2	PDF	700	560	10 to 1	25926	0.96	180	5762	0.06	64.06	35.02	74.18	22.11	684	8	5
HDB360-F-NF-X2		720	576	20 to 1	26666	0.85	180	5926	0.05	70.56	35.02	74.18	22.11	810	8	5
HDB400-F-NF-X2	PDF	800	640	20 to 1	29630	1.04	180	6584	0.06	70.56	35.02	74.18	22.11	810	8	5
HDB500-F-NF-X2	PDF	1000	800	20 to 1	37037	1.13	150	9876	0.1	83.56	43.02	74.18	22.11	968	10
HDB600-F-NF-X2	PDF	1200	960	20 to 1	44444	1.22	150	11852	0.11	96.56	43.02	74.18	22.11	1032	10

Notes:
- Max Discharge Temp is 160°F
- (#) notation denotes # of tubes in unit
- For Propane gas, turndown is 60% of stated natural gas turndown.

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HDG-B Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-B-NT	PDF	50	40	5 to 1	1852	0.37	80	463	0.03	26.84	21.59	27.05	20.29	104	2	1.5
HDG075-B-NT	PDF	75	60	5 to 1	2778	0.79	80	694	0.06	26.84	21.59	27.05	20.29	104	2	1.5
HDG100-B-NT	PDF	100	80	10 to 1	3704	0.9	80	926	0.07	26.84	21.59	27.05	20.29	147	2	1.5
HDG125-B-NT	PDF	125	100	5 to 1	4630	0.98	80	1157	0.08	26.84	21.59	27.05	20.29	186	2	1.5
HDG150-B-NT	PDF	150	120	10 to 1	5556	1.04	80	1389	0.08	26.84	21.59	27.05	20.29	213	2	1.5
HDG175-B-NT	PDF	175	140	5 to 1	6481	1.08	80	1620	0.08	29.59	21.59	27.05	20.29	233	2	1.5
HDG200-B-NT	PDF	200	160	10 to 1	7407	1.11	80	1852	0.09	32.34	21.59	27.05	20.29	263	4	2.5
HDG250-B-NT	PDF	250	200	10 to 1	9259	0.92	80	2315	0.07	37.84	21.59	27.05	20.29	333	4	2.5
HDG300-B-NT	PDF	300	240	10 to 1	11111	0.98	80	2778	0.07	43.34	21.59	27.05	20.29	391	4	2.5
HDG350-B-NT	PDF	350	280	10 to 1	12963	1.03	80	3241	0.08	48.84	21.59	27.05	20.29	443	4	2.5
HDG400-B-NT	PDF	400	320	10 to 1	14815	1.18	80	3704	0.09	51.59	21.59	27.05	20.29	460	4	2.5
HDG050-B-NT-X2	PDF	100	80	10 to 1	1852	0.75	160	463	0.06	26.84	43.06	27.04	20.29	208	5	3
HDG075-B-NT-X2	PDF	150	120	10 to 1	2778	1.58	160	694	0.12	26.84	43.06	27.04	20.29	208	5	3
HDG100-B-NT-X2	PDF	200	160	20 to 1	3704	1.8	160	926	0.14	26.84	43.06	27.04	20.29	294	8	5
HDG125-B-NT-X2	PDF	250	200	10 to 1	4630	1.96	160	1157	0.15	26.84	43.06	27.04	20.29	372	8	5
HDG150-B-NT-X2	PDF	300	240	20 to 1	5556	2.07	160	1389	0.16	26.84	43.06	27.04	20.29	426	8	5
HDG175-B-NT-X2	PDF	350	280	10 to 1	6481	2.16	160	1620	0.17	29.59	43.06	27.04	20.29	466	8	5
HDG200-B-NT-X2	PDF	400	320	20 to 1	7407	2.23	160	1852	0.17	32.34	43.06	27.04	20.29	526	8	5
HDG250-B-NT-X2	PDF	500	400	20 to 1	9259	1.83	160	2315	0.14	37.84	43.06	27.04	20.29	666	8	5
HDG300-B-NT-X2	PDF	600	480	20 to 1	11111	1.96	160	2778	0.15	43.34	43.06	27.04	20.29	782	8	5
HDG350-B-NT-X2	PDF	700	560	20 to 1	12963	2.05	160	3241	0.16	48.84	43.06	27.04	20.29	886	8	5
HDG400-B-NT-X2	PDF	800	640	20 to 1	14815	2.36	160	3704	0.18	51.59	43.06	27.04	20.29	920	8	5
HDG500-B-NT-X2	PDF	1000	800	20 to 1	18519	2.66	160	4630	0.21	59.84	55.18	27.04	20.29	N/a	10
HDG600-B-NT-X2	PDF	1200	960	20 to 1	22222	2.7	160	5556	0.21	72.78	55.18	27.04	20.29	N/a	10

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-B-NF-X2	PDF	100	80	10 to 1	1852	0.75	160	463	0.06	24.78	43.06	27.04	20.29	208	5	3
HDG075-B-NF-X2	PDF	150	120	10 to 1	2778	1.58	160	694	0.12	24.78	43.06	27.04	20.29	208	5	3
HDG100-B-NF-X2	PDF	200	160	20 to 1	3704	1.8	160	926	0.14	24.78	43.06	27.04	20.29	294	8	5
HDG125-B-NF-X2	PDF	250	200	10 to 1	4630	1.96	160	1157	0.15	24.78	43.06	27.04	20.29	372	8	5
HDG150-B-NF-X2	PDF	300	240	20 to 1	5556	2.07	160	1389	0.16	24.78	43.06	27.04	20.29	426	8	5
HDG175-B-NF-X2	PDF	350	280	10 to 1	6481	2.16	160	1620	0.17	27.53	43.06	27.04	20.29	466	8	5
HDG200-B-NF-X2	PDF	400	320	20 to 1	7407	2.23	160	1852	0.17	30.28	43.06	27.04	20.29	526	8	5
HDG250-B-NF-X2	PDF	500	400	20 to 1	9259	1.83	160	2315	0.14	35.78	43.06	27.04	20.29	666	8	5
HDG300-B-NF-X2	PDF	600	480	20 to 1	11111	1.96	160	2778	0.15	41.28	43.06	27.04	20.29	782	8	5
HDG350-B-NF-X2	PDF	700	560	20 to 1	12963	2.05	160	3241	0.16	46.78	43.06	27.04	20.29	886	8	5
HDG400-B-NF-X2	PDF	800	640	20 to 1	14815	2.36	160	3704	0.18	49.53	43.06	27.04	20.29	920	8	5
HDG500-B-NF-X2	PDF	1000	800	20 to 1	18519	2.66	160	4630	0.21	57.78	55.06	27.04	20.29	N/a	10
HDG600-B-NF-X2	PDF	1200	960	20 to 1	22222	2.7	160	5556	0.21	68.78	55.06	27.04	20.29	N/a	10

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

80%81% (Coming Soon)

HDG-F Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-F-NT	PDF	50	40	5 to 1	1852	0.37	80	463	0.03	15.18	22.92	27.06	20.28	104	2	1.5
HDG075-F-NT	PDF	75	60	5 to 1	2778	0.79	80	694	0.06	15.18	22.92	27.06	20.28	104	2	1.5
HDG100-F-NT	PDF	100	80	10 to 1	3704	0.9	80	926	0.07	17.93	22.92	27.06	20.28	147	2	1.5
HDG125-F-NT	PDF	125	100	5 to 1	4630	0.98	80	1157	0.08	20.68	22.92	27.06	20.28	186	2	1.5
HDG150-F-NT	PDF	150	120	10 to 1	5556	1.04	80	1389	0.08	23.43	22.92	27.06	20.28	213	2	1.5
HDG175-F-NT	PDF	175	140	5 to 1	6481	1.08	80	1620	0.08	26.18	22.92	27.05	20.29	233	2	1.5
HDG200-F-NT	PDF	200	160	10 to 1	7407	1.11	80	1852	0.09	28.93	22.92	27.06	20.28	263	4	2.5
HDG250-F-NT	PDF	250	200	10 to 1	9259	0.92	80	2315	0.07	34.43	22.92	27.06	20.28	333	4	2.5
HDG300-F-NT	PDF	300	240	10 to 1	11111	0.98	80	2778	0.07	39.93	22.92	27.06	20.28	391	4	2.5
HDG350-F-NT	PDF	350	280	10 to 1	12963	1.03	80	3241	0.08	45.43	22.92	27.06	20.28	443	4	2.5
HDG400-F-NT	PDF	400	320	10 to 1	14815	1.18	80	3704	0.09	48.18	22.92	27.06	20.28	460	4	2.5
HDG050-F-NT-X2	PDF	100	80	10 to 1	3704	0.75	160	926	0.06	30.24	22.92	27.06	20.23	208	5	3
HDG075-F-NT-X2	PDF	150	120	10 to 1	5556	1.58	160	1388	0.12	30.24	22.92	27.06	20.23	208	5	3
HDG100-F-NT-X2	PDF	200	160	20 to 1	7408	1.8	160	1852	0.14	35.74	22.92	27.06	20.23	294	5	3
HDG125-F-NT-X2	PDF	250	200	10 to 1	9260	1.96	160	2314	0.15	41.24	22.92	27.06	20.23	372	5	3
HDG150-F-NT-X2	PDF	300	240	20 to 1	11112	2.07	160	2778	0.16	46.74	22.92	27.06	20.23	426	5	3
HDG175-F-NT-X2	PDF	350	280	10 to 1	12962	2.16	160	3240	0.17	52.24	22.92	27.06	20.23	466	5	3
HDG200-F-NT-X2	PDF	400	320	20 to 1	14814	2.23	160	3704	0.17	57.74	22.92	27.06	20.23	526	8	5
HDG250-F-NT-X2	PDF	500	400	20 to 1	18518	1.83	160	4630	0.14	68.74	22.92	27.06	20.23	666	8	5
HDG300-F-NT-X2	PDF	600	480	20 to 1	22222	1.96	160	5556	0.15	79.74	22.92	27.06	20.23	782	8	5
HDG350-F-NT-X2	PDF	700	560	20 to 1	25926	2.05	160	6482	0.16	90.74	22.92	27.06	20.23	886	8	5
HDG400-F-NT-X2	PDF	800	640	20 to 1	29630	2.36	160	7408	0.18	96.24	22.92	27.06	20.23	920	8	5
HDG500-F-NT-X2	PDF	1000	800	20 to 1	37038	2.66	160	9260	0.21					N/a	10	6.4
HDG600-F-NT-X2	PDF	1200	960	20 to 1	44444	2.7	160	11112	0.21					N/a	10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-NT	PDF	50	40	5 to 1	1852	0.01	60	617	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG075-I-NT	PDF	75	60	5 to 1	2778	0.02	60	926	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG100-I-NT	PDF	100	80	10 to 1	3704	0.05	60	1235	0.01	21.59	24.78	27.06	20.28	147	2	1.5
HDG125-I-NT	PDF	125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	24.78	27.06	20.28	186	2	1.5
HDG150-I-NT	PDF	150	120	10 to 1	5556	0.14	60	1852	0.02	21.59	24.78	27.06	20.28	213	2	1.5
HDG175-I-NT	PDF	175	140	5 to 1	6481	0.23	60	2160	0.03	21.59	27.53	27.06	20.28	233	2	1.5
HDG200-I-NT	PDF	200	160	10 to 1	7407	0.33	60	2469	0.04	21.59	30.28	27.06	20.28	263	4	2.5
HDG250-I-NT	PDF	250	200	10 to 1	9259	0.54	60	3086	0.07	21.59	35.78	27.06	20.28	333	4	2.5
HDG300-I-NT	PDF	300	240	10 to 1	11111	0.91	60	3704	0.12	21.59	41.28	27.06	20.28	391	4	2.5
HDG350-I-NT	PDF	350	280	10 to 1	12963	1.42	60	4321	0.19	21.59	46.78	27.06	20.28	443	4	2.5
HDG400-I-NT	PDF	400	320	10 to 1	14815	1.95	60	4938	0.25	21.59	49.53	27.06	20.28	460	4	2.5
HDG050-I-NT-X2	PDF	100	80	10 to 1	3704	0.02	120	1234	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG075-I-NT-X2	PDF	150	120	10 to 1	5556	0.04	120	1852	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG100-I-NT-X2	PDF	200	160	10 to 1	7408	0.09	120	2470	0.01	43.06	24.78	27.06	20.28	294	5	3
HDG125-I-NT-X2	PDF	250	200	10 to 1	9260	0.17	120	3086	0.02	43.06	24.78	27.06	20.28	372	5	3
HDG150-I-NT-X2	PDF	300	240	20 to 1	11112	0.29	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-NT-X2	PDF	350	280	10 to 1	12962	0.45	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-NT-X2	PDF	400	320	20 to 1	14814	0.66	120	4938	0.09	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-NT-X2	PDF	500	400	20 to 1	18518	1.09	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-NT-X2	PDF	600	480	20 to 1	22222	1.83	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-NT-X2	PDF	700	560	20 to 1	25926	2.84	120	8642	0.37	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-NT-X2	PDF	800	640	20 to 1	29630	3.89	120	9876	0.51	43.06	49.53	27.06	20.28	920	8	5
HDG500-I-NT-X2	PDF	1000	800	20 to 1	37038	8.08	120	12346	1.06						10	6.4
HDG600-I-NT-X2	PDF	1200	960	20 to 1	44444	13.78	120	14814	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-F-NF-X2	PDF	100	80	10 to 1	3704	0.75	160	926	0.06	30.24	34.92	27.06	20.23	208	5	3
HDG075-F-NF-X2	PDF	150	120	10 to 1	5556	1.58	160	1388	0.12	30.24	34.92	27.06	20.23	208	5	3
HDG100-F-NF-X2	PDF	200	160	20 to 1	7408	1.8	160	1852	0.14	35.74	34.92	27.06	20.23	294	5	3
HDG125-F-NF-X2	PDF	250	200	10 to 1	9260	1.96	160	2314	0.15	41.24	34.92	27.06	20.23	372	5	3
HDG150-F-NF-X2	PDF	300	240	20 to 1	11112	2.07	160	2778	0.16	46.74	34.92	27.06	20.23	426	5	3
HDG175-F-NF-X2	PDF	350	280	10 to 1	12962	2.16	160	3240	0.17	52.24	34.92	27.06	20.23	466	5	3
HDG200-F-NF-X2	PDF	400	320	20 to 1	14814	2.23	160	3704	0.17	57.74	34.92	27.06	20.23	526	8	5
HDG250-F-NF-X2	PDF	500	400	20 to 1	18518	1.83	160	4630	0.14	68.74	34.92	27.06	20.23	666	8	5
HDG300-F-NF-X2	PDF	600	480	20 to 1	22222	1.96	160	5556	0.15	79.74	34.92	27.06	20.23	782	8	5
HDG350-F-NF-X2	PDF	700	560	20 to 1	25926	2.05	160	6482	0.16	90.74	34.92	27.06	20.23	886	8	5
HDG400-F-NF-X2	PDF	800	640	20 to 1	29630	2.36	160	7408	0.18	96.24	34.92	27.06	20.23	920	8	5
HDG500-F-NF-X2	PDF	1000	800	20 to 1	37038	2.66	160	9260	0.21					N/a	10	6.4
HDG600-F-NF-X2	PDF	1200	960	20 to 1	44444	2.7	160	11112	0.21					N/a	10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Select An Efficiency:

80%81% (Coming Soon)

HDG-M Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

Note: You must be logged in to view CAD files. Authorized access is required for STEP files.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-M-NT	PDF	50	40	5 to 1	1852	0.01	60	617	0.01	24.98	15.18	27.05	20.29	104	2	1.5
HDG075-M-NT	PDF	75	60	5 to 1	2778	0.02	60	926	0.01		15.18	27.05	20.29	104	2	1.5
HDG100-M-NT	PDF	100	80	10 to 1	3704	0.05	60	1235	0.01	24.98	17.93	27.05	20.29	147	2	1.5
HDG125-M-NT	PDF	125	100	5 to 1	4630	0.07	60	1543	0.01	24.98	20.68	27.05	20.29	186	2	1.5
HDG150-M-NT	PDF	150	120	10 to 1	5556	0.14	60	1852	0.03	24.98	23.43	27.05	20.29	213	2	1.5
HDG175-M-NT	PDF	175	140	5 to 1	6481	0.23	60	2160	0.04	24.98	26.18	27.05	20.29	233	2	1.5
HDG200-M-NT	PDF	200	160	10 to 1	7407	0.33	60	2469	0.06	24.98	28.93	27.05	20.29	263	4	2.5
HDG250-M-NT	PDF	250	200	10 to 1	9259	0.54	60	3086	0.1	24.98	34.43	27.05	20.29	333	4	2.5
HDG300-M-NT	PDF	300	240	10 to 1	11111	0.91	60	3704	0.17	24.98	39.93	27.05	20.29	391	4	2.5
HDG350-M-NT	PDF	350	280	10 to 1	12963	1.42	60	4321	0.26	24.98	45.43	27.05	20.29	443	4	2.5
HDG400-M-NT	PDF	400	320	10 to 1	14815	1.95	60	4938	0.36	24.98	48.18	27.05	20.29	460	4	2.5
HDG050-M-NT-X2	PDF	100	80	10 to 1	1852	0.02	120	617	0.01	22.92	30.24	27.04	20.29	208	5	3
HDG075-M-NT-X2	PDF	150	120	10 to 1	2778	0.04	120	926	0.01	22.92	30.24	27.04	20.29	208	5	3
HDG100-M-NT-X2	PDF	200	160	20 to 1	3704	0.09	120	1235	0.01	22.92	35.74	27.04	20.29	294	5	3
HDG125-M-NT-X2	PDF	250	200	10 to 1	4630	0.17	120	1543	0.02	22.92	41.24	27.04	20.29	372	5	3
HDG150-M-NT-X2	PDF	300	240	20 to 1	5556	0.29	120	1852	0.04	22.92	46.74	27.04	20.29	426	5	3
HDG175-M-NT-X2	PDF	350	280	10 to 1	6481	0.45	120	2160	0.06	22.92	52.24	27.04	20.29	466	5	3
HDG200-M-NT-X2	PDF	400	320	20 to 1	7407	0.66	120	2469	0.09	22.92	57.74	27.04	20.29	526	8	5
HDG250-M-NT-X2	PDF	500	400	20 to 1	9259	1.09	120	3086	0.14	22.92	68.74	27.04	20.29	666	8	5
HDG300-M-NT-X2	PDF	600	480	20 to 1	11111	1.83	120	3704	0.24	22.92	79.74	27.04	20.29	782	8	5
HDG350-M-NT-X2	PDF	700	560	20 to 1	12963	2.84	120	4321	0.37	22.92	90.74	27.04	20.29	886	8	5
HDG400-M-NT-X2	PDF	800	640	20 to 1	14815	3.89	120	4938	0.51	22.92	96.24	27.04	20.29	920	8	5
HDG500-M-NT-X2	PDF	1000	800	20 to 1	18519	8.08	120	6173	1.06						10	6.4
HDG600-M-NT-X2	PDF	1200	960	20 to 1	22222	13.78	120	7407	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-NT	PDF	50	40	5 to 1	1852	0.01	60	617	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG075-I-NT	PDF	75	60	5 to 1	2778	0.02	60	926	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG100-I-NT	PDF	100	80	10 to 1	3704	0.05	60	1235	0.01	21.59	24.78	27.06	20.28	147	2	1.5
HDG125-I-NT	PDF	125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	24.78	27.06	20.28	186	2	1.5
HDG150-I-NT	PDF	150	120	10 to 1	5556	0.14	60	1852	0.02	21.59	24.78	27.06	20.28	213	2	1.5
HDG175-I-NT	PDF	175	140	5 to 1	6481	0.23	60	2160	0.03	21.59	27.53	27.06	20.28	233	2	1.5
HDG200-I-NT	PDF	200	160	10 to 1	7407	0.33	60	2469	0.04	21.59	30.28	27.06	20.28	263	4	2.5
HDG250-I-NT	PDF	250	200	10 to 1	9259	0.54	60	3086	0.07	21.59	35.78	27.06	20.28	333	4	2.5
HDG300-I-NT	PDF	300	240	10 to 1	11111	0.91	60	3704	0.12	21.59	41.28	27.06	20.28	391	4	2.5
HDG350-I-NT	PDF	350	280	10 to 1	12963	1.42	60	4321	0.19	21.59	46.78	27.06	20.28	443	4	2.5
HDG400-I-NT	PDF	400	320	10 to 1	14815	1.95	60	4938	0.25	21.59	49.53	27.06	20.28	460	4	2.5
HDG050-I-NT-X2	PDF	100	80	10 to 1	3704	0.02	120	1234	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG075-I-NT-X2	PDF	150	120	10 to 1	5556	0.04	120	1852	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG100-I-NT-X2	PDF	200	160	10 to 1	7408	0.09	120	2470	0.01	43.06	24.78	27.06	20.28	294	5	3
HDG125-I-NT-X2	PDF	250	200	10 to 1	9260	0.17	120	3086	0.02	43.06	24.78	27.06	20.28	372	5	3
HDG150-I-NT-X2	PDF	300	240	20 to 1	11112	0.29	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-NT-X2	PDF	350	280	10 to 1	12962	0.45	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-NT-X2	PDF	400	320	20 to 1	14814	0.66	120	4938	0.09	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-NT-X2	PDF	500	400	20 to 1	18518	1.09	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-NT-X2	PDF	600	480	20 to 1	22222	1.83	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-NT-X2	PDF	700	560	20 to 1	25926	2.84	120	8642	0.37	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-NT-X2	PDF	800	640	20 to 1	29630	3.89	120	9876	0.51	43.06	49.53	27.06	20.28	920	8	5
HDG500-I-NT-X2	PDF	1000	800	20 to 1	37038	8.08	120	12346	1.06						10	6.4
HDG600-I-NT-X2	PDF	1200	960	20 to 1	44444	13.78	120	14814	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-M-NF-X2	PDF	100	80	10 to 1	1852	0.02	120	617	0.01	36.98	30.24	27.04	20.29	208	5	3
HDG075-M-NF-X2	PDF	150	120	10 to 1	2778	0.04	120	926	0.01	36.98	30.24	27.04	20.29	208	5	3
HDG100-M-NF-X2	PDF	200	160	20 to 1	3704	0.09	120	1235	0.01	34.92	35.74	27.04	20.29	294	5	3
HDG125-M-NF-X2	PDF	250	200	10 to 1	4630	0.17	120	1543	0.02	34.92	41.24	27.04	20.29	372	5	3
HDG150-M-NF-X2	PDF	300	240	20 to 1	5556	0.29	120	1852	0.04	34.92	46.74	27.04	20.29	426	5	3
HDG175-M-NF-X2	PDF	350	280	10 to 1	6481	0.45	120	2160	0.06	34.92	52.24	27.04	20.29	466	5	3
HDG200-M-NF-X2	PDF	400	320	20 to 1	7407	0.66	120	2469	0.09	34.92	57.74	27.04	20.29	526	8	5
HDG250-M-NF-X2	PDF	500	400	20 to 1	9259	1.09	120	3086	0.14	34.92	68.74	27.04	20.29	666	8	5
HDG300-M-NF-X2	PDF	600	480	20 to 1	11111	1.83	120	3704	0.24	34.92	79.74	27.04	20.29	782	8	5
HDG350-M-NF-X2	PDF	700	560	20 to 1	12963	2.84	120	4321	0.37	34.92	90.74	27.04	20.29	886	8	5
HDG400-M-NF-X2	PDF	800	640	20 to 1	14815	3.89	120	4938	0.51	34.92	96.24	27.04	20.29	920	8	5
HDG500-M-NF-X2	PDF	1000	800	20 to 1	18519	8.08	120	6173	1.06						10	6.4
HDG600-M-NF-X2	PDF	1200	960	20 to 1	22222	13.78	120	7407	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-NT	PDF	50	40	5 to 1	1852	0.01	60	617	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG075-I-NT	PDF	75	60	5 to 1	2778	0.02	60	926	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG100-I-NT	PDF	100	80	10 to 1	3704	0.05	60	1235	0.01	21.59	24.78	27.06	20.28	147	2	1.5
HDG125-I-NT	PDF	125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	24.78	27.06	20.28	186	2	1.5
HDG150-I-NT	PDF	150	120	10 to 1	5556	0.14	60	1852	0.02	21.59	24.78	27.06	20.28	213	2	1.5
HDG175-I-NT	PDF	175	140	5 to 1	6481	0.23	60	2160	0.03	21.59	27.53	27.06	20.28	233	2	1.5
HDG200-I-NT	PDF	200	160	10 to 1	7407	0.33	60	2469	0.04	21.59	30.28	27.06	20.28	263	4	2.5
HDG250-I-NT	PDF	250	200	10 to 1	9259	0.54	60	3086	0.07	21.59	35.78	27.06	20.28	333	4	2.5
HDG300-I-NT	PDF	300	240	10 to 1	11111	0.91	60	3704	0.12	21.59	41.28	27.06	20.28	391	4	2.5
HDG350-I-NT	PDF	350	280	10 to 1	12963	1.42	60	4321	0.19	21.59	46.78	27.06	20.28	443	4	2.5
HDG400-I-NT	PDF	400	320	10 to 1	14815	1.95	60	4938	0.25	21.59	49.53	27.06	20.28	460	4	2.5
HDG050-I-NT-X2	PDF	100	80	10 to 1	3704	0.02	120	1234	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG075-I-NT-X2	PDF	150	120	10 to 1	5556	0.04	120	1852	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG100-I-NT-X2	PDF	200	160	10 to 1	7408	0.09	120	2470	0.01	43.06	24.78	27.06	20.28	294	5	3
HDG125-I-NT-X2	PDF	250	200	10 to 1	9260	0.17	120	3086	0.02	43.06	24.78	27.06	20.28	372	5	3
HDG150-I-NT-X2	PDF	300	240	20 to 1	11112	0.29	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-NT-X2	PDF	350	280	10 to 1	12962	0.45	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-NT-X2	PDF	400	320	20 to 1	14814	0.66	120	4938	0.09	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-NT-X2	PDF	500	400	20 to 1	18518	1.09	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-NT-X2	PDF	600	480	20 to 1	22222	1.83	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-NT-X2	PDF	700	560	20 to 1	25926	2.84	120	8642	0.37	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-NT-X2	PDF	800	640	20 to 1	29630	3.89	120	9876	0.51	43.06	49.53	27.06	20.28	920	8	5
HDG500-I-NT-X2	PDF	1000	800	20 to 1	37038	8.08	120	12346	1.06						10	6.4
HDG600-I-NT-X2	PDF	1200	960	20 to 1	44444	13.78	120	14814	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-NT	PDF	50	40	5 to 1	1852	0.01	60	617	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG075-I-NT	PDF	75	60	5 to 1	2778	0.02	60	926	0.01	21.59	24.78	27.06	20.28	104	2	1.5
HDG100-I-NT	PDF	100	80	10 to 1	3704	0.05	60	1235	0.01	21.59	24.78	27.06	20.28	147	2	1.5
HDG125-I-NT	PDF	125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	24.78	27.06	20.28	186	2	1.5
HDG150-I-NT	PDF	150	120	10 to 1	5556	0.14	60	1852	0.02	21.59	24.78	27.06	20.28	213	2	1.5
HDG175-I-NT	PDF	175	140	5 to 1	6481	0.23	60	2160	0.03	21.59	27.53	27.06	20.28	233	2	1.5
HDG200-I-NT	PDF	200	160	10 to 1	7407	0.33	60	2469	0.04	21.59	30.28	27.06	20.28	263	4	2.5
HDG250-I-NT	PDF	250	200	10 to 1	9259	0.54	60	3086	0.07	21.59	35.78	27.06	20.28	333	4	2.5
HDG300-I-NT	PDF	300	240	10 to 1	11111	0.91	60	3704	0.12	21.59	41.28	27.06	20.28	391	4	2.5
HDG350-I-NT	PDF	350	280	10 to 1	12963	1.42	60	4321	0.19	21.59	46.78	27.06	20.28	443	4	2.5
HDG400-I-NT	PDF	400	320	10 to 1	14815	1.95	60	4938	0.25	21.59	49.53	27.06	20.28	460	4	2.5
HDG050-I-NT-X2	PDF	100	80	10 to 1	3704	0.02	120	1234	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG075-I-NT-X2	PDF	150	120	10 to 1	5556	0.04	120	1852	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG100-I-NT-X2	PDF	200	160	10 to 1	7408	0.09	120	2470	0.01	43.06	24.78	27.06	20.28	294	5	3
HDG125-I-NT-X2	PDF	250	200	10 to 1	9260	0.17	120	3086	0.02	43.06	24.78	27.06	20.28	372	5	3
HDG150-I-NT-X2	PDF	300	240	20 to 1	11112	0.29	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-NT-X2	PDF	350	280	10 to 1	12962	0.45	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-NT-X2	PDF	400	320	20 to 1	14814	0.66	120	4938	0.09	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-NT-X2	PDF	500	400	20 to 1	18518	1.09	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-NT-X2	PDF	600	480	20 to 1	22222	1.83	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-NT-X2	PDF	700	560	20 to 1	25926	2.84	120	8642	0.37	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-NT-X2	PDF	800	640	20 to 1	29630	3.89	120	9876	0.51	43.06	49.53	27.06	20.28	920	8	5
HDG500-I-NT-X2	PDF	1000	800	20 to 1	37038	8.08	120	12346	1.06						10	6.4
HDG600-I-NT-X2	PDF	1200	960	20 to 1	44444	13.78	120	14814	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-NF-X2	PDF	100	80	10 to 1	3704	0.02	120	1234	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG075-I-NF-X2	PDF	150	120	10 to 1	5556	0.04	120	1852	0.01	43.06	24.78	27.06	20.28	208	5	3
HDG100-I-NF-X2	PDF	200	160	10 to 1	7408	0.09	120	2470	0.01	43.06	24.78	27.06	20.28	294	5	3
HDG125-I-NF-X2	PDF	250	200	10 to 1	9260	0.17	120	3086	0.02	43.06	24.78	27.06	20.28	372	5	3
HDG150-I-NF-X2	PDF	300	240	20 to 1	11112	0.29	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-NF-X2	PDF	350	280	10 to 1	12962	0.45	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-NF-X2	PDF	400	320	20 to 1	14814	0.66	120	4938	0.09	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-NF-X2	PDF	500	400	20 to 1	18518	1.09	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-NF-X2	PDF	600	480	20 to 1	22222	1.83	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-NF-X2	PDF	700	560	20 to 1	25926	2.84	120	8642	0.37	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-NF-X2	PDF	800	640	20 to 1	29630	3.89	120	9876	0.51	43.06	49.53	27.06	20.28	920	8	5
HDG500-I-NF-X2	PDF	1000	800	20 to 1	37038	8.08	120	12346	1.06						10	6.4
HDG600-I-NF-X2	PDF	1200	960	20 to 1	44444	13.78	120	14814	1.81						10	6.4

Notes:
- Max Discharge Temp is 160°F
- For Propane gas, turndown is 60% of stated natural gas turndown.

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