HD Style S Units

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HDA-F-S HDA-M-S HDA-I-S HDB-B-S HDB-F-S HDG-B-S HDG-F-S HDG-M-S HDG-I-S

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HDA-B-S – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	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-ST	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-ST (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-ST	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-ST	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-ST (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-ST	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-ST	PDF			500	400	10 to 1	18519	1.38	100	3704	0.07	41.49	30.6	43	21.98	480	5
HDA600-B-ST	PDF			600	480	10 to 1	22222	1.52	100	4444	0.08	47.99	30.6	43	21.98	522	5
HDA150-B-ST-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-ST-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-ST-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-ST-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-ST-X2	PDF			600	480	20 to 1	11111	1.92	200	2222	0.1	28.49	60.18	43	21.98	585	8	5
HDA350-B-ST-X2	PDF			700	560	10 to 1	12963	2.18	200	2593	0.12	31.74	60.18	43	21.98	668	8	5
HDA350-B-ST-X2 (8)	PDF			700	560	10 to 1	12963	1.86	200	2593	0.1	31.74	60.18	43	21.98	923	8	5
HDA400-B-ST-X2	PDF			800	640	20 to 1	14815	2.4	200	2963	0.12	34.99	60.18	43	21.98	923	8	5
HDA500-B-ST-X2	PDF			1000	800	20 to 1	18519	2.76	200	3704	0.14	41.49	60.18	43	21.98	1011	10
HDA600-B-ST-X2	PDF			1200	960	20 to 1	22222	3.04	200	4444	0.16	47.99	60.18	43	21.98	1086	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
HDA150-B-SF-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-SF-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-SF-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-SF-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-SF-X2	PDF			600	480	20 to 1	11111	1.92	200	2222	0.1	28.49	60.18	43	21.98	585	8	5
HDA350-B-SF-X2	PDF			700	560	10 to 1	12963	2.18	200	2593	0.12	31.74	60.18	43	21.98	668	8	5
HDA350-B-SF-X2 (8)	PDF			700	560	10 to 1	12963	1.86	200	2593	0.1	31.74	60.18	43	21.98	923	8	5
HDA400-B-SF-X2	PDF			800	640	20 to 1	14815	2.4	200	2963	0.12	34.99	60.18	43	21.98	923	8	5
HDA500-B-SF-X2	PDF			1000	800	20 to 1	18519	2.76	200	3704	0.14	41.49	60.18	43	21.98	1011	10
HDA600-B-SF-X2	PDF			1200	960	20 to 1	22222	3.04	200	4444	0.16	47.99	60.18	43	21.98	1086	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.

HDA-F-S – Vertical Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	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-ST	PDF			250	200	5 to 1	9259	0.83	100	1852	0.04	24.69	31.39	42.84	22.76	264	4	2.5
HDA250-F-ST (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-ST	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-ST	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-ST (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-ST	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-ST	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-ST	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-ST-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-ST-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-ST-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-ST-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-ST-X2	PDF			600	480	20 to 1	22222	1.92	200	4444	0.1	54.74	31.39	43	21.98	585	8	5
HDA350-F-ST-X2	PDF			700	560	10 to 1	25926	2.18	200	5186	0.12	61.24	31.39	43	21.98	668	8	5
HDA350-F-ST-X2 (8)	PDF			700	560	10 to 1	25926	1.86	200	5186	0.1	67.74	31.39	43	21.98	923	8	5
HDA400-F-ST-X2	PDF			800	640	20 to 1	29630	2.4	200	5926	0.12	67.74	31.39	43	21.98	923	8	5
HDA500-F-ST-X2	PDF			1000	800	20 to 1	37038	2.76	200	7408	0.14	80.74	31.39	43	21.98	1011	10	N/a
HDA600-F-ST-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-SF-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-SF-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-SF-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-SF-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-SF-X2	PDF			600	480	20 to 1	22222	1.92	200	4444	0.1	54.74	41.49	43	21.98	585	8	5
HDA350-F-SF-X2	PDF			700	560	10 to 1	25926	2.18	200	5186	0.12	61.24	41.49	43	21.98	668	8	5
HDA350-F-SF-X2 (8)	PDF			700	560	10 to 1	25926	1.86	200	5186	0.1	67.74	41.49	43	21.98	923	8	5
HDA400-F-SF-X2	PDF			800	640	20 to 1	29630	2.4	200	5926	0.12	67.74	41.49	43	21.98	923	8	5
HDA500-F-SF-X2	PDF			1000	800	20 to 1	37038	2.76	200	7408	0.14	80.74	41.49	43	21.98	1011	10	N/a
HDA600-F-SF-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.

HDA-M-S – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	PDF			200	160	10 to 1	7407	0.03	60	2469	0.01	31.39	21.44	43	22.03	232	4	2.5
HDA250-M-ST	PDF			250	200	5 to 1	9259	0.06	60	3086	0.01	31.39	24.69	43	22.03	268	4	2.5
HDA250-M-ST (6)	PDF			250	200	10 to 1	9259	0.08	60	3086	0.01	31.39	24.69	43	22.03	278	4	2.5
HDA300-M-ST	PDF			300	240	10 to 1	11111	0.11	60	3704	0.01	31.39	27.94	43	22.03	278	4	2.5
HDA350-M-ST	PDF			350	280	5 to 1	12963	0.17	60	4321	0.02	31.39	31.19	43	22.03	389	4	2.5
HDA350-M-ST (8)	PDF			350	280	10 to 1	12963	0.19	60	4321	0.03	31.39	31.19	43	22.03	439	4	2.5
HDA400-M-ST	PDF			400	320	10 to 1	14815	0.25	60	4938	0.03	31.39	34.44	43	22.03	439	4	2.5
HDA500-M-ST	PDF			500	400	10 to 1	18519	0.47	60	6173	0.06	31.39	40.94	43	22.03	480	5
HDA600-M-ST	PDF			600	480	10 to 1	22222	0.79	60	7407	0.1	31.39	47.44	43	22.03	522	5
HDA200-M-ST-X2	PDF			400	320	20 to 1	7407	0.06	120	2469	0.02	31.39	41.74	43	22.03	487	8	5
HDA250-M-ST-X2	PDF			500	400	10 to 1	9259	0.12	120	3086	0.02	31.39	48.24	43	22.03	564	8	5
HDA250-M-ST-X2 (6)	PDF			500	400	20 to 1	9259	0.16	120	3086	0.01	31.39	48.24	43	22.03	585	8	5
HDA300-M-ST-X2	PDF			600	480	20 to 1	11111	0.22	120	3704	0.02	31.39	54.74	43	22.03	585	8	5
HDA350-M-ST-X2	PDF			700	560	10 to 1	12963	0.34	120	4321	0.04	31.39	61.24	43	22.03	668	8	5
HDA350-M-ST-X2 (8)	PDF			700	560	20 to 1	12963	0.38	120	4321	0.05	31.39	61.24	43	22.03	923	8	5
HDA500-M-ST-X2	PDF			1000	800	20 to 1	18519	0.94	120	6173	0.12	31.39	80.74	43	22.03	1011	10
HDA600-M-ST-X2	PDF			1200	960	20 to 1	22222	1.58	120	7407	0.2	31.39	93.74	43	22.03	1086	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
HDA150-M-SF-X2	PDF			150	120	20 to 1	5556	0.04	120	1111	0.02	41.99	41.74	43.06	21.98	488	8	5
HDA200-M-SF-X2	PDF			400	320	20 to 1	7407	0.06	120	1481	0.02	41.99	41.74	43	21.98	487	8	5
HDA250-M-SF-X2	PDF			500	400	10 to 1	9259	0.12	120	1852	0.02	41.99	48.24	43	21.98	564	8	5
HDA250-M-SF-X2 (6)	PDF			500	400	10 to 1	9259	0.16	120	1852	0.02	41.99	54.74	43	21.98	585	8	5
HDA300-M-SF-X2	PDF			600	480	20 to 1	11111	0.22	120	2222	0.02	41.99	54.74	43	21.98	585	8	5
HDA350-M-SF-X2	PDF			700	560	10 to 1	12963	0.34	120	2593	0.04	41.99	61.24	43	21.98	668	8	5
HDA350-M-SF-X2 (8)	PDF			700	560	10 to 1	12963	0.38	120	2593	0.06	41.99	67.74	43	21.98	923	8	5
HDA400-M-SF-X2	PDF			800	640	20 to 1	14815	0.5	120	2963	0.06	41.99	67.74	43	21.98	923	8	5
HDA500-M-SF-X2	PDF			1000	800	20 to 1	18519	0.94	120	3704	0.12	41.99	80.74	43	21.98	1011	10
HDA600-M-SF-X2	PDF			1200	960	20 to 1	22222	1.58	120	4444	0.2	41.99	93.77	43	21.98	1086	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.

HDA-I-S – Vertical Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	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-ST	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-ST (6)	PDF			250	200	10 to 1	9259	0.08	60	3086	0.01	30.09	28.49	42.84	22.25	278	4	2.5
HDA300-I-ST	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-ST	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-ST (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-ST	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-ST	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-ST	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-ST-X2	PDF			150	120	20 to 1	11112	0.04	120	2222	0.02	60.18	21.99	43.06	21.98	488	8	5
HDA200-I-ST-X2	PDF			400	320	20 to 1	14814	0.06	120	2962	0.02	60.18	21.99	43	21.98	487	8	5
HDA250-I-ST-X2	PDF			500	400	10 to 1	18518	0.12	120	3704	0.02	60.18	25.24	43	21.98	564	8	5
HDA250-I-ST-X2 (6)	PDF			500	400	10 to 1	18518	0.16	120	3704	0.02	60.18	25.24	43	21.98	585	8	5
HDA300-I-ST-X2	PDF			600	480	20 to 1	22222	0.22	120	4444	0.02	60.18	28.49	43	21.98	585	8	5
HDA350-I-ST-X2	PDF			700	560	10 to 1	25926	0.34	120	5186	0.04	60.18	31.74	43	21.98	668	8	5
HDA350-I-ST-X2 (8)	PDF			700	560	10 to 1	25926	0.38	120	5186	0.06	60.18	31.74	43	21.98	923	8	5
HDA400-I-ST-X2	PDF			800	640	20 to 1	29630	0.5	120	5926	0.06	60.18	34.99	43	21.98	923	8	5
HDA500-I-ST-X2	PDF			1000	800	20 to 1	37038	0.94	120	7408	0.12	60.18	41.49	43	21.98	1011	10	N/a
HDA600-I-ST-X2	PDF			1200	960	20 to 1	44444	1.58	120	8888	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-SF-X2	PDF			150	120	20 to 1	11112	0.04	120	2222	0.02	60.18	21.99	43.06	21.98	488	8	5
HDA200-I-SF-X2	PDF			400	320	20 to 1	14814	0.06	120	2962	0.02	60.18	21.99	43	21.98	487	8	5
HDA250-I-SF-X2	PDF			500	400	10 to 1	18518	0.12	120	3704	0.02	60.18	25.24	43	21.98	564	8	5
HDA250-I-SF-X2 (6)	PDF			500	400	10 to 1	18518	0.16	120	3704	0.02	60.18	25.24	43	21.98	585	8	5
HDA300-I-SF-X2	PDF			600	480	20 to 1	22222	0.22	120	4444	0.02	60.18	28.49	43	21.98	585	8	5
HDA350-I-SF-X2	PDF			700	560	10 to 1	25926	0.34	120	5186	0.04	60.18	31.74	43	21.98	668	8	5
HDA350-I-SF-X2 (8)	PDF			700	560	10 to 1	25926	0.38	120	5186	0.06	60.18	31.74	43	21.98	923	8	5
HDA400-I-SF-X2	PDF			800	640	20 to 1	29630	0.5	120	5926	0.06	60.18	34.99	43	21.98	923	8	5
HDA500-I-SF-X2	PDF			1000	800	20 to 1	37038	0.94	120	7408	0.12	60.18	41.49	43	21.98	1011	10	N/a
HDA600-I-SF-X2	PDF			1200	960	20 to 1	44444	1.58	120	8888	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.

HDB-B Units

Images coming soon!

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	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
HDB250-B-ST (6)	PDF			250	200	10 to 1	9259	0.32	90	2058	0.02	32.05	19.24	74.18	22.09	279	4	2.5
HDB300-B-ST	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-ST	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
HDB350-B-ST (8)	PDF			350	280	10 to 1	12963	0.4	90	2881	0.02	38.55	19.24	74.18	22.09	405	4	2.5
HDB400-B-ST	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-ST	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-ST	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-ST-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-ST-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-ST-X2	PDF			500	400	10 to 1	9259	0.78	180	2058	0.04	32.05	38.48	74.18	22.09	432	8	5
HDB250-B-ST-X2 (6)	PDF			500	400	20 to 1	9259	0.64	180	2058	0.04	32.05	38.48	74.18	22.09	558	8	5
HDB300-B-ST-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-ST-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
HDB350-B-ST-X2 (8)	PDF			700	560	20 to 1	12963	0.8	180	2881	0.04	38.55	38.48	74.18	22.09	810	8	5
HDB400-B-ST-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-ST-X2	PDF			1000	800	20 to 1	18519	1.14	150	4938	0.1	45.07	47.74	74.18	22.09	968	10
HDB600-B-ST-X2	PDF			1200	960	20 to 1	22222	1.22	150	5926	0.1	51.55	47.74	74.18	22.09	1032	10

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-SF-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-SF-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-SF-X2	PDF			500	400	10 to 1	9259	0.78	180	2058	0.04	32.05	38.48	74.18	22.09	432	8	5
HDB250-B-SF-X2 (6)	PDF			500	400	20 to 1	9259	0.64	180	2058	0.04	32.05	38.48	74.18	22.09	558	8	5
HDB300-B-SF-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-SF-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
HDB350-B-SF-X2 (8)	PDF			700	560	20 to 1	12963	0.8	180	2881	0.04	38.55	38.48	74.18	22.09	810	8	5
HDB400-B-SF-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-SF-X2	PDF			1000	800	20 to 1	18519	1.14	150	4938	0.1	45.07	47.74	74.18	22.09	968	10
HDB600-B-SF-X2	PDF			1200	960	20 to 1	22222	1.22	150	5926	0.1	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.

HDB-F Units

Images coming soon!

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	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
HDB250-F-ST (6)	PDF			250	200	10 to 1	9259	0.32	90	2058	0.02	28.83	35.02	74.18	22.09	279	4	2.5
HDB300-F-ST	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-ST	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
HDB350-F-ST (8)	PDF			350	280	10 to 1	12963	0.4	90	2881	0.02	35.33	35.02	74.18	22.09	405	4	2.5
HDB400-F-ST	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-ST	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-ST	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-ST-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-ST-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-ST-X2	PDF			500	400	10 to 1	18518	0.78	180	4116	0.04	51.06	35.02	74.18	22.11	432	8	5
HDB250-F-ST-X2 (6)	PDF			500	400	20 to 1	18518	0.64	180	4116	0.04	57.56	35.02	74.18	22.11	558	8	5
HDB300-F-ST-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-ST-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
HDB350-F-ST-X2 (8)	PDF			700	560	20 to 1	25926	0.8	180	5762	0.04	70.56	35.02	74.18	22.11	810	8	5
HDB400-F-ST-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-ST-X2	PDF			1000	800	20 to 1	37038	1.14	150	9876	0.1	83.56	43.02	74.18	22.11	968	10
HDB600-F-ST-X2	PDF			1200	960	20 to 1	44444	1.22	150	11852	0.1	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-SF-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-SF-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-SF-X2	PDF			500	400	10 to 1	18518	0.78	180	4116	0.04	51.06	35.02	74.18	22.11	432	8	5
HDB250-F-SF-X2 (6)	PDF			500	400	20 to 1	18518	0.64	180	4116	0.04	57.56	35.02	74.18	22.11	558	8	5
HDB300-F-SF-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-SF-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
HDB350-F-SF-X2 (8)	PDF			700	560	20 to 1	25926	0.8	180	5762	0.04	70.56	35.02	74.18	22.11	810	8	5
HDB400-F-SF-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-SF-X2	PDF			1000	800	20 to 1	37038	1.14	150	9876	0.1	83.56	43.02	74.18	22.11	968	10
HDB600-F-SF-X2	PDF			1200	960	20 to 1	44444	1.22	150	11852	0.1	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.

HDG-B Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	PDF			50	40	5 to 1	1852	0.37	80	463	0.03	18.59	21.59	27.05	20.29	104	2	1.5
HDG075-B-ST	PDF			75	60	5 to 1	2778	0.79	80	694	0.06	18.59	21.59	27.05	20.29	104	2	1.5
HDG100-B-ST	PDF			100	80	5 to 1	3704	0.9	80	926	0.07	21.34	21.59	27.05	20.29	147	2	1.5
HDG125-B-ST	PDF			125	100	5 to 1	4630	0.98	80	1157	0.08	24.09	21.59	27.05	20.29	186	2	1.5
HDG150-B-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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
HDG500-B-ST	PDF			500	400	10 to 1	18519	1.33	80	4630	0.1	59.84	27.59	23.99	23.35	N/a	5	3.2
HDG600-B-ST	PDF			600	480	10 to 1	22222	1.35	80	5556	0.1	70.84	27.59	23.99	23.35	N/a	5	3.2
HDG050-B-ST-X2	PDF			100	80	10 to 1	1852	0.74	160	463	0.06	18.59	43.06	27.04	20.29	208	5	3
HDG075-B-ST-X2	PDF			150	120	10 to 1	2778	1.58	160	694	0.12	18.59	43.06	27.04	20.29	208	5	3
HDG100-B-ST-X2	PDF			200	160	20 to 1	3704	1.8	160	926	0.14	18.59	43.06	27.04	20.29	294	8	5
HDG125-B-ST-X2	PDF			250	200	10 to 1	4630	1.96	160	1157	0.16	18.59	43.06	27.04	20.29	372	8	5
HDG150-B-ST-X2	PDF			300	240	20 to 1	5556	2.08	160	1389	0.16	28.78	43.06	27.04	20.29	426	8	5
HDG175-B-ST-X2	PDF			350	280	10 to 1	6481	2.16	160	1620	0.16	29.59	43.06	27.04	20.29	466	8	5
HDG200-B-ST-X2	PDF			400	320	20 to 1	7407	2.22	160	1852	0.18	32.34	43.06	27.04	20.29	526	8	5
HDG250-B-ST-X2	PDF			500	400	20 to 1	9259	1.84	160	2315	0.14	39.78	43.06	27.04	20.29	666	8	5
HDG300-B-ST-X2	PDF			600	480	20 to 1	11111	1.96	160	2778	0.14	45.28	43.06	27.04	20.29	782	8	5
HDG350-B-ST-X2	PDF			700	560	20 to 1	12963	2.06	160	3241	0.16	50.78	43.06	27.04	20.29	886	8	5
HDG400-B-ST-X2	PDF			800	640	20 to 1	14815	2.36	160	3704	0.18	53.53	43.06	27.04	20.29	920	8	5

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-SF-X2	PDF			100	80	10 to 1	1852	0.74	160	463	0.06	24.78	43.06	27.04	20.29	208	5	3
HDG075-B-SF-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-SF-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-SF-X2	PDF			250	200	10 to 1	4630	1.96	160	1157	0.16	24.78	43.06	27.04	20.29	372	8	5
HDG150-B-SF-X2	PDF			300	240	20 to 1	5556	2.08	160	1389	0.16	24.78	43.06	27.04	20.29	426	8	5
HDG175-B-SF-X2	PDF			350	280	10 to 1	6481	2.16	160	1620	0.16	27.53	43.06	27.04	20.29	466	8	5
HDG200-B-SF-X2	PDF			400	320	20 to 1	7407	2.22	160	1852	0.18	30.28	43.06	27.04	20.29	526	8	5
HDG250-B-SF-X2	PDF			500	400	20 to 1	9259	1.84	160	2315	0.14	35.78	43.06	27.04	20.29	666	8	5
HDG300-B-SF-X2	PDF			600	480	20 to 1	11111	1.96	160	2778	0.14	41.28	43.06	27.04	20.29	782	8	5
HDG350-B-SF-X2	PDF			700	560	20 to 1	12963	2.06	160	3241	0.16	41.28	43.06	27.04	20.29	886	8	5
HDG400-B-SF-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

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

HDG-F Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST-X2	PDF			100	80	10 to 1	3704	0.74	160	926	0.06	30.24	22.92	27.06	20.23	208	5	3
HDG075-F-ST-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-ST-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-ST-X2	PDF			250	200	10 to 1	9260	1.96	160	2314	0.16	41.24	22.92	27.06	20.23	372	5	3
HDG150-F-ST-X2	PDF			300	240	20 to 1	11112	2.08	160	2778	0.16	46.74	22.92	27.06	20.23	426	5	3
HDG175-F-ST-X2	PDF			350	280	10 to 1	12962	2.16	160	3240	0.16	52.24	22.92	27.06	20.23	466	5	3
HDG200-F-ST-X2	PDF			400	320	20 to 1	14814	2.22	160	3704	0.18	57.74	22.92	27.06	20.23	526	8	5
HDG250-F-ST-X2	PDF			500	400	20 to 1	18518	1.84	160	4630	0.14	68.74	22.92	27.06	20.23	666	8	5
HDG300-F-ST-X2	PDF			600	480	20 to 1	22222	1.96	160	5556	0.14	79.74	22.92	27.06	20.23	782	8	5
HDG350-F-ST-X2	PDF			700	560	20 to 1	25926	2.06	160	6482	0.16	90.74	22.92	27.06	20.23	886	8	5
HDG400-F-ST-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

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-SF-X2	PDF			100	80	10 to 1	3704	0.74	160	926	0.06	30.24	34.92	27.06	20.23	208	5	3
HDG075-F-SF-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-SF-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-SF-X2	PDF			250	200	10 to 1	9260	1.96	160	2314	0.16	41.24	34.92	27.06	20.23	372	5	3
HDG150-F-SF-X2	PDF			300	240	20 to 1	11112	2.08	160	2778	0.16	46.74	34.92	27.06	20.23	426	5	3
HDG175-F-SF-X2	PDF			350	280	10 to 1	12962	2.16	160	3240	0.16	52.24	34.92	27.06	20.23	466	5	3
HDG200-F-SF-X2	PDF			400	320	20 to 1	14814	2.22	160	3704	0.18	57.74	34.92	27.06	20.23	526	8	5
HDG250-F-SF-X2	PDF			500	400	20 to 1	18518	1.84	160	4630	0.14	68.74	34.92	27.06	20.23	666	8	5
HDG300-F-SF-X2	PDF			600	480	20 to 1	22222	1.96	160	5556	0.14	79.74	34.92	27.06	20.23	782	8	5
HDG350-F-SF-X2	PDF			700	560	20 to 1	25926	2.06	160	6482	0.16	90.74	34.92	27.06	20.23	886	8	5
HDG400-F-SF-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

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

HDG-M Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	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-ST	PDF			75	60	5 to 1	2778	0.02	60	926	0.01	24.98	15.18	27.05	20.29	104	2	1.5
HDG100-M-ST	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-ST	PDF			125	100	5 to 1	4630	0.09	60	1543	0.01	24.98	20.68	27.05	20.29	186	2	1.5
HDG150-M-ST	PDF			150	120	10 to 1	5556	0.14	60	1852	0.02	24.98	23.43	27.05	20.29	213	2	1.5
HDG175-M-ST	PDF			175	140	5 to 1	6481	0.23	60	2160	0.03	24.98	26.18	27.05	20.29	233	2	1.5
HDG200-M-ST	PDF			200	160	10 to 1	7407	0.33	60	2469	0.04	24.98	28.93	27.05	20.29	263	4	2.5
HDG250-M-ST	PDF			250	200	10 to 1	9259	0.54	60	3086	0.07	24.98	34.43	27.05	20.29	333	4	2.5
HDG300-M-ST	PDF			300	240	10 to 1	11111	0.91	60	3704	0.12	24.98	39.93	27.05	20.29	391	4	2.5
HDG350-M-ST	PDF			350	280	10 to 1	12963	1.42	60	4321	0.19	24.98	45.43	27.05	20.29	443	4	2.5
HDG400-M-ST	PDF			400	320	10 to 1	14815	1.95	60	4938	0.25	24.98	48.18	27.05	20.29	460	4	2.5
HDG050-M-ST-X2	PDF			100	80	10 to 1	1852	0.02	120	617	0.02	22.92	30.24	27.04	20.29	208	5	3
HDG075-M-ST-X2	PDF			150	120	10 to 1	2778	0.04	120	926	0.02	22.92	30.24	27.04	20.29	208	5	3
HDG100-M-ST-X2	PDF			200	160	20 to 1	3704	0.1	120	1235	0.02	22.92	35.74	27.04	20.29	294	5	3
HDG125-M-ST-X2	PDF			250	200	10 to 1	4630	0.18	120	1543	0.02	22.92	41.24	27.04	20.29	372	5	3
HDG150-M-ST-X2	PDF			300	240	20 to 1	5556	0.28	120	1852	0.04	22.92	46.74	27.04	20.29	426	5	3
HDG175-M-ST-X2	PDF			350	280	10 to 1	6481	0.46	120	2160	0.06	22.92	52.24	27.04	20.29	466	5	3
HDG200-M-ST-X2	PDF			400	320	20 to 1	7407	0.66	120	2469	0.08	22.92	57.74	27.04	20.29	526	8	5
HDG250-M-ST-X2	PDF			500	400	20 to 1	9259	1.08	120	3086	0.14	22.92	68.74	27.04	20.29	666	8	5
HDG300-M-ST-X2	PDF			600	480	20 to 1	11111	1.82	120	3704	0.24	22.92	79.74	27.04	20.29	782	8	5
HDG350-M-ST-X2	PDF			700	560	20 to 1	12963	2.84	120	4321	0.38	22.92	90.74	27.04	20.29	886	8	5
HDG400-M-ST-X2	PDF			800	640	20 to 1	14815	3.9	120	4938	0.5	22.92	96.24	27.04	20.29	920	8	5

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-SF-X2	PDF			100	80	10 to 1	1852	0.02	120	617	0.02	36.98	30.24	27.04	20.29	208	5	3
HDG075-M-SF-X2	PDF			150	120	10 to 1	2778	0.04	120	926	0.02	36.98	30.24	27.04	20.29	208	5	3
HDG100-M-SF-X2	PDF			200	160	20 to 1	3704	0.1	120	1235	0.02	34.92	35.74	27.04	20.29	294	5	3
HDG125-M-SF-X2	PDF			250	200	10 to 1	4630	0.18	120	1543	0.02	34.92	41.24	27.04	20.29	372	5	3
HDG150-M-SF-X2	PDF			300	240	20 to 1	5556	0.28	120	1852	0.04	34.92	46.74	27.04	20.29	426	5	3
HDG175-M-SF-X2	PDF			350	280	10 to 1	6481	0.46	120	2160	0.06	34.92	52.24	27.04	20.29	466	5	3
HDG200-M-SF-X2	PDF			400	320	20 to 1	7407	0.66	120	2469	0.08	34.92	57.74	27.04	20.29	526	8	5
HDG250-M-SF-X2	PDF			500	400	20 to 1	9259	1.08	120	3086	0.14	34.92	68.74	27.04	20.29	666	8	5
HDG300-M-SF-X2	PDF			600	480	20 to 1	11111	1.82	120	3704	0.24	34.92	79.74	27.04	20.29	782	8	5
HDG350-M-SF-X2	PDF			700	560	20 to 1	12963	2.84	120	4321	0.38	34.92	90.74	27.04	20.29	886	8	5
HDG400-M-SF-X2	PDF			800	640	20 to 1	14815	3.9	120	4938	0.5	34.92	96.24	27.04	20.29	920	8	5

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

HDG-I Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

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-ST	PDF			50	40	5 to 1	1852	0.01	60	617	0.01	21.59	16.53	27.06	20.28	104	2	1.5
HDG075-I-ST	PDF			75	60	5 to 1	2778	0.02	60	926	0.01	21.59	16.53	27.06	20.28	104	2	1.5
HDG100-I-ST	PDF			100	80	5 to 1	3704	0.05	60	1235	0.01	21.59	19.28	27.06	20.28	147	2	1.5
HDG125-I-ST	PDF			125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	22.03	27.06	20.28	186	2	1.5
HDG150-I-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST-X2	PDF			100	80	10 to 1	3704	0.02	120	1234	0.02	43.06	17.46	27.06	20.28	208	5	3
HDG075-I-ST-X2	PDF			150	120	10 to 1	5556	0.04	120	1852	0.02	43.06	17.46	27.06	20.28	208	5	3
HDG100-I-ST-X2	PDF			200	160	10 to 1	7408	0.1	120	2470	0.02	43.06	20.21	27.06	20.28	294	5	3
HDG125-I-ST-X2	PDF			250	200	10 to 1	9260	0.18	120	3086	0.02	43.06	22.95	27.06	20.28	372	5	3
HDG150-I-ST-X2	PDF			300	240	20 to 1	11112	0.28	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-ST-X2	PDF			350	280	10 to 1	12962	0.46	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-ST-X2	PDF			400	320	20 to 1	14814	0.66	120	4938	0.08	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-ST-X2	PDF			500	400	20 to 1	18518	1.08	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-ST-X2	PDF			600	480	20 to 1	22222	1.82	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-ST-X2	PDF			700	560	20 to 1	25926	2.84	120	8642	0.38	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-ST-X2	PDF			800	640	20 to 1	29630	3.9	120	9876	0.5	43.06	49.53	27.06	20.28	920	8	5

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-SF-X2	PDF			100	80	10 to 1	3704	0.02	120	1234	0.02	43.06	24.78	27.06	20.28	208	5	3
HDG075-I-SF-X2	PDF			150	120	10 to 1	5556	0.04	120	1852	0.02	43.06	24.78	27.06	20.28	208	5	3
HDG100-I-SF-X2	PDF			200	160	10 to 1	7408	0.1	120	2470	0.02	43.06	24.78	27.06	20.28	294	5	3
HDG125-I-SF-X2	PDF			250	200	10 to 1	9260	0.18	120	3086	0.02	43.06	24.78	27.06	20.28	372	5	3
HDG150-I-SF-X2	PDF			300	240	20 to 1	11112	0.28	120	3704	0.04	43.06	24.78	27.06	20.28	426	5	3
HDG175-I-SF-X2	PDF			350	280	10 to 1	12962	0.46	120	4320	0.06	43.06	27.53	27.06	20.28	466	5	3
HDG200-I-SF-X2	PDF			400	320	20 to 1	14814	0.66	120	4938	0.08	43.06	30.28	27.06	20.28	526	8	5
HDG250-I-SF-X2	PDF			500	400	20 to 1	18518	1.08	120	6172	0.14	43.06	35.78	27.06	20.28	666	8	5
HDG300-I-SF-X2	PDF			600	480	20 to 1	22222	1.82	120	7408	0.24	43.06	41.28	27.06	20.28	782	8	5
HDG350-I-SF-X2	PDF			700	560	20 to 1	25926	2.84	120	8642	0.38	43.06	46.78	27.06	20.28	886	8	5
HDG400-I-SF-X2	PDF			800	640	20 to 1	29630	3.9	120	9876	0.5	43.06	49.53	27.06	20.28	920	8	5

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