HD Style K Units

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HDA-F-K HDA-M-K HDA-I-K HDB-B/F-K HDG-B/F-K HDG-M/I-K

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HDA-B-K – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-KT	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-KT	PDF			200	160	10 to 1	7407	0.67	100	1481	0.03	21.99	30.09	43	21.98	232	4	2.5
HDA250-B-KT	PDF			250	200	5 to 1	9259	0.83	100	1852	0.04	25.24	30.09	43	21.98	268	4	2.5
HDA250-B-KT (6)	PDF			250	200	5 to 1	9259	0.69	100	1852	0.03	25.24	30.09	43	21.98	278	4	2.5
HDA300-B-KT	PDF			300	240	10 to 1	11111	0.96	100	2222	0.05	28.49	30.09	43	21.98	278	4	2.5
HDA350-B-KT	PDF			350	280	5 to 1	12963	1.09	100	2593	0.06	31.74	30.09	43	21.98	389	4	2.5
HDA350-B-KT (8)	PDF			350	280	5 to 1	12963	0.93	100	2593	0.05	31.74	30.09	43	21.98	439	4	2.5
HDA400-B-KT	PDF			400	320	10 to 1	14815	1.2	100	2963	0.06	34.99	30.09	43	21.98	439	4	2.5
HDA500-B-KT	PDF			500	400	10 to 1	18519	1.38	100	3704	0.07	41.49	30.09	43	21.98	480	5
HDA600-B-KT	PDF			600	480	10 to 1	22222	1.52	100	4444	0.08	47.99	30.09	43	21.98	522	5
HDA200-B-KT-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-KT-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-KT-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-KT-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-KT-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-KT-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-KT-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-KT-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-KT-X2	PDF			1200	960	20 to 1	22222	3.04	200	4444	0.16	47.99	60.18	43	21.98	1086	10

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-KF	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-KF	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-KF	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-KF (6)	PDF			250	200	5 to 1	9259	0.69	100	1852	0.03	25.24	30.6	43	21.98	278	4	2.5
HDA300-B-KF	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-KF	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-KF (8)	PDF			350	280	5 to 1	12963	0.93	100	2593	0.05	31.74	30.6	43	21.98	439	4	2.5
HDA400-B-KF	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-KF	PDF			500	400	10 to 1	18519	1.38	100	3704	0.07	41.49	30.6	43	21.98	1011	5
HDA600-B-KF	PDF			600	480	10 to 1	22222	1.52	100	4444	0.08	47.99	30.6	43	21.98	522	5

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

HDA-F-K – Vertical Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-F-KT	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-KT	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-KT	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-KT (6)	PDF			250	200	5 to 1	9259	0.69	100	1852	0.03	27.43	41.49	42.84	22.25	278	4	2.5
HDA300-F-KT	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-KT	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-KT (8)	PDF			350	280	5 to 1	12963	0.93	100	2593	0.05	33.93	41.49	42.84	22.25	439	4	2.5
HDA400-F-KT	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-KT	PDF			500	400	10 to 1	18519	1.38	100	3704	0.07	40.94	31.39	42.84	22.76	480	5
HDA600-F-KT	PDF			600	480	10 to 1	22222	1.52	100	4444	0.08	47.44	31.39	42.84	22.76	522	5

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-F-KF	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-KF	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-KF	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-KF (6)	PDF			250	200	5 to 1	9259	0.69	100	1852	0.03	27.43	41.49	42.84	22.25	278	4	2.5
HDA300-F-KF	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-KF	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-KF (8)	PDF			350	280	5 to 1	12963	0.93	100	2593	0.05	33.93	41.49	42.84	22.25	439	4	2.5
HDA400-F-KF	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-KF	PDF			500	400	10 to 1	18519	1.38	100	3704	0.07	40.94	31.39	42.84	22.76	480	5
HDA600-F-KF	PDF			600	480	10 to 1	22222	1.52	100	4444	0.08	47.44	31.39	42.84	22.76	522	5

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

HDA-M-K – Horizontal Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V
HDA150-M-KT	PDF			150	120	10 to 1	5556	0.02	60	1852	0.01	30.6	21.98	43.06	22.03	244	4
HDA200-M-KT	PDF			200	160	10 to 1	7407	0.03	60	2469	0.01	31.39	21.44	43	21.98	232	4
HDA250-M-KT	PDF			250	200	5 to 1	9259	0.06	60	3086	0.01	31.39	24.69	43	21.98	268	4
HDA250-M-KT (6)	PDF			250	200	5 to 1	9259	0.08	60	3086	0.01	31.39	24.69	43	21.98	278	4
HDA300-M-KT	PDF			300	240	10 to 1	11111	0.11	60	3704	0.01	31.39	27.94	43	21.98	278	4
HDA350-M-KT	PDF			350	280	5 to 1	12963	0.17	60	4321	0.02	31.39	31.19	43	21.98	389	4
HDA350-M-KT (8)	PDF			350	280	5 to 1	12963	0.19	60	4321	0.03	31.39	31.19	43	21.98	439	4
HDA400-M-KT	PDF			400	320	10 to 1	14815	0.25	60	4938	0.03	31.39	34.44	43	21.98	439	4
HDA500-M-KT	PDF			500	400	10 to 1	18519	0.47	60	6173	0.06	31.39	40.94	43	21.98	480	5
HDA600-M-KT	PDF			600	480	10 to 1	22222	0.79	60	7407	0.1	31.39	47.44	43	21.98	522	5

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-M-KF	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-KF	PDF			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-KF	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-KF (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-KF	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-KF	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-KF (8)	PDF			350	280	5 to 1	12963	0.19	60	4321	0.03	31.39	31.19	43	21.98	439	4	2.5
HDA400-M-KF	PDF			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-KF	PDF			500	400	10 to 1	18519	0.47	60	6173	0.06	31.39	40.94	43	21.98	480	5
HDA600-M-KF	PDF			600	480	10 to 1	22222	0.79	60	7407	0.1	31.39	47.44	43	21.98	522	5

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

HDA-I-K – Vertical Airflow

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-I-KT	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-KT	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-KT	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-KT (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-KT	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-KT	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-KT (8)	PDF			350	280	5 to 1	12963	0.19	60	4321	0.03	30.09	34.99	42.84	22.25	439	4	2.5
HDA400-I-KT	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-KT	PDF			500	400	10 to 1	18519	0.47	60	6173	0.06	29.98	41.49	42.84	22.76	480	5
HDA600-I-KT	PDF			600	480	10 to 1	22222	0.79	60	7407	0.1	29.98	47.99	42.84	22.76	522	5

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-I-KF	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-KF	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-KF	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-KF (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-KF	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-KF	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-KF (8)	PDF			350	280	5 to 1	12963	0.19	60	4321	0.03	30.09	34.99	42.84	22.25	439	4	2.5
HDA400-I-KF	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-KF	PDF			500	400	10 to 1	18519	0.47	60	6173	0.06	29.98	41.49	42.84	22.76	480	5
HDA600-I-KF	PDF			600	480	10 to 1	22222	0.79	60	7407	0.1	29.98	47.99	42.84	22.76	522	5

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

HDB-B/F Units

Images coming soon!

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB200-B-KF	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-KF	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-KF (6)	PDF			250	200	5 to 1	9259	0.32	90	2058	0.02	32.05	19.24	74.18	22.09	279	4	2.5
HDB300-B-KF	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-KF	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-KF (8)	PDF			350	280	5 to 1	12963	0.4	90	2881	0.02	38.55	19.24	74.18	22.09	405	4	2.5
HDB400-B-KF	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-KF	PDF			500	400	10 to 1	18519	0.57	75	4938	0.05	45.07	23.87	74.18	22.09	484	5	N/a
HDB600-B-KF	PDF			600	480	10 to 1	22222	0.61	75	5926	0.05	51.55	23.87	74.18	22.09	516	5	N/a

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB200-B-KT	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-KT	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-KT (6)	PDF			250	200	5 to 1	9259	0.32	90	2058	0.02	32.05	19.24	74.18	22.09	279	4	2.5
HDB300-B-KT	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-KT	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-KT (8)	PDF			350	280	5 to 1	12963	0.4	90	2881	0.02	38.55	19.24	74.18	22.09	405	4	2.5
HDB400-B-KT	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-KT	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-KT	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-KT-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-KT-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-KT-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-KT-X2 (6)	PDF			500	400	10 to 1	9259	0.64	180	2058	0.04	32.05	38.48	74.18	22.09	558	8	5
HDB300-B-KT-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-KT-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-KT-X2 (8)	PDF			700	560	10 to 1	12963	0.8	180	2881	0.04	38.55	38.48	74.18	22.09	810	8	5
HDB400-B-KT-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-KT-X2	PDF			1000	800	20 to 1	18519	1.14	180	4938	0.1	45.07	47.74	74.18	22.09	968	10
HDB600-B-KT-X2	PDF			1200	960	20 to 1	22222	1.22	180	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	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB200-F-KF	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-KF	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-KF (6)	PDF			250	200	5 to 1	9259	0.32	90	2058	0.02	28.83	35.02	74.18	22.09	279	4	2.5
HDB300-F-KF	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-KF	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-KF (8)	PDF			350	280	5 to 1	12963	0.4	90	2881	0.02	35.33	35.02	74.18	22.09	405	4	2.5
HDB400-F-KF	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-KF	PDF			500	400	10 to 1	18519	0.57	75	4938	0.05	41.83	43.02	71.84	23.48	484	5	N/a
HDB600-F-KF	PDF			600	480	10 to 1	22222	0.61	75	5926	0.05	48.33	43.02	71.84	23.48	516	5	N/a

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDB200-F-KT	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-KT	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-KT (6)	PDF			250	200	5 to 1	9259	0.32	90	2058	0.02	28.83	35.02	74.18	22.09	279	4	2.5
HDB300-F-KT	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-KT	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-KT (8)	PDF			350	280	5 to 1	12963	0.4	90	2881	0.02	35.33	35.02	74.18	22.09	405	4	2.5
HDB400-F-KT	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-KT	PDF			500	400	10 to 1	18519	0.57	75	4938	0.05	41.83	43.02	71.84	23.48	484	5	N/a
HDB600-F-KT	PDF			600	480	10 to 1	22222	0.61	75	5926	0.05	48.33	43.02	71.84	23.48	516	5	N/a

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

HDG-B/F Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-B-KT	PDF			50	40	5 to 1	1852	0.37	80	463	0.03	18.59	21.59	27.05	20.29	104	2.4	1.5
HDG075-B-KT	PDF			75	60	5 to 1	2778	0.79	80	694	0.06	18.59	21.59	27.05	20.29	104	2.4	1.5
HDG100-B-KT	PDF			100	80	5 to 1	3704	0.9	80	926	0.07	21.34	21.59	27.05	20.29	147	2.4	1.5
HDG125-B-KT	PDF			125	100	5 to 1	4630	0.98	80	1157	0.08	24.09	21.59	27.05	20.29	186	2.4	1.5
HDG150-B-KT	PDF			150	120	10 to 1	5556	1.04	80	1389	0.08	26.84	21.59	27.05	20.29	213	2.4	1.5
HDG175-B-KT	PDF			175	140	5 to 1	6481	1.08	80	1620	0.08	29.59	21.59	27.05	20.29	233	2.4	1.5
HDG200-B-KT	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-KT	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-KT	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-KT	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-KT	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

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-B-KF	PDF			50	40	5 to 1	1852	0.37	80	463	0.03	26.84	21.59	27.05	20.29	104	2.4	1.5
HDG075-B-KF	PDF			75	60	5 to 1	2778	0.79	80	694	0.06	26.84	21.59	27.05	20.29	104	2.4	1.5
HDG100-B-KF	PDF			100	80	10 to 1	3704	0.9	80	926	0.07	26.84	21.59	27.05	20.29	147	2.4	1.5
HDG125-B-KF	PDF			125	100	5 to 1	4630	0.98	80	1157	0.08	26.84	21.59	27.05	20.29	186	2.4	1.5
HDG150-B-KF	PDF			150	120	10 to 1	5556	1.04	80	1389	0.08	26.84	21.59	27.05	20.29	213	2.4	1.5
HDG175-B-KF	PDF			175	140	5 to 1	6481	1.08	80	1620	0.08	29.59	21.59	27.05	20.29	233	2.4	1.5
HDG200-B-KF	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-KF	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-KF	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-KF	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-KF	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

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-F-KT	PDF			50	40	5 to 1	1852	0.37	80	463	0.03	15.18	22.92	27.06	20.28	104	2.4	1.5
HDG075-F-KT	PDF			75	60	5 to 1	2778	0.79	80	694	0.06	15.18	22.92	27.06	20.28	104	2.4	1.5
HDG100-F-KT	PDF			100	80	10 to 1	3704	0.9	80	926	0.07	17.93	22.92	27.06	20.28	147	2.4	1.5
HDG125-F-KT	PDF			125	100	5 to 1	4630	0.98	80	1157	0.08	20.68	22.92	27.06	20.28	186	2.4	1.5
HDG150-F-KT	PDF			150	120	10 to 1	5556	1.04	80	1389	0.08	23.43	22.92	27.06	20.28	213	2.4	1.5
HDG175-F-KT	PDF			175	140	5 to 1	6481	1.08	80	1620	0.08	26.18	22.92	27.05	20.29	233	2.4	1.5
HDG200-F-KT	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-KT	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-KT	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-KT	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-KT	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

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V
HDG050-F-KF	PDF			50	40	5 to 1	1852	0.37	80	463	0.03	15.18	34.92	27.06	20.28	104	2.4
HDG075-F-KF	PDF			75	60	5 to 1	2778	0.79	80	694	0.06	15.18	34.92	27.06	20.28	104	2.4
HDG100-F-KF	PDF			100	80	10 to 1	3704	0.9	80	926	0.07	17.93	34.92	27.06	20.28	147	2.4
HDG125-F-KF	PDF			125	100	5 to 1	4630	0.98	80	1157	0.08	20.68	34.92	27.06	20.28	186	2.4
HDG150-F-KF	PDF			150	120	10 to 1	5556	1.04	80	1389	0.08	23.43	34.92	27.06	20.28	213	2.4
HDG175-F-KF	PDF			175	140	5 to 1	6481	1.08	80	1620	0.08	26.18	34.92	27.05	20.29	233	2.4
HDG200-F-KF	PDF			200	160	10 to 1	7407	1.11	80	1852	0.09	28.93	34.92	27.06	20.28	263	4
HDG250-F-KF	PDF			250	200	10 to 1	9259	0.92	80	2315	0.07	34.43	34.92	27.06	20.28	333	4
HDG300-F-KF	PDF			300	240	10 to 1	11111	0.98	80	2778	0.07	39.93	34.92	27.06	20.28	391	4
HDG350-F-KF	PDF			350	280	10 to 1	12963	1.03	80	3241	0.08	45.43	34.92	27.06	20.28	443	4
HDG400-F-KF	PDF			400	320	10 to 1	14815	1.18	80	3704	0.09	48.18	34.92	27.06	20.28	460	4

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

HDG-M/I Units

Application Guidelines Product Specification Product Manual Submittal / Order Information

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-M-KT	PDF			50	40	5 to 1	1852	0.01	60	617	0.01	N/a	N/a	N/a	N/a	104	2.4	1.5
HDG075-M-KT	PDF			75	60	5 to 1	2778	0.02	60	926	0.01	22.92	15.18	27.05	20.29	104	2.4	1.5
HDG100-M-KT	PDF			100	80	10 to 1	3704	0.05	60	1235	0.01	22.92	17.81	27.05	20.29	147	2.4	1.5
HDG125-M-KT	PDF			125	100	5 to 1	4630	0.09	60	1543	0.01	22.92	20.68	27.05	20.29	186	2.4	1.5
HDG150-M-KT	PDF			150	120	10 to 1	5556	0.14	60	1852	0.02	24.98	23.43	27.05	20.29	213	2.4	1.5
HDG175-M-KT	PDF			175	140	5 to 1	6481	0.23	60	2160	0.03	22.92	26.18	27.05	20.29	233	2.4	1.5
HDG200-M-KT	PDF			200	160	10 to 1	7407	0.33	60	2469	0.04	22.92	28.93	27.05	20.29	263	4	2.5
HDG250-M-KT	PDF			250	200	10 to 1	9259	0.54	60	3086	0.07	22.92	34.43	27.05	20.29	333	4	2.5
HDG300-M-KT	PDF			300	240	10 to 1	11111	0.91	60	3704	0.12	22.92	39.93	27.05	20.29	391	4	2.5
HDG350-M-KT	PDF			350	280	10 to 1	12963	1.42	60	4321	0.19	22.92	45.43	27.05	20.29	443	4	2.5
HDG400-M-KT	PDF			400	320	10 to 1	14815	1.95	60	4938	0.25	22.92	48.18	27.05	20.29	460	4	2.5

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-M-KF	PDF			50	40	5 to 1	1852	0.01	60	617	0.01	36.98	15.18	27.05	20.29	104	2.4	1.5
HDG075-M-KF	PDF			75	60	5 to 1	2778	0.02	60	926	0.01	36.98	15.18	27.05	20.29	104	2.4	1.5
HDG100-M-KF	PDF			100	80	10 to 1	3704	0.05	60	1235	0.01	36.98	17.93	27.05	20.29	147	2.4	1.5
HDG125-M-KF	PDF			125	100	5 to 1	4630	0.09	60	1543	0.01	36.98	20.68	27.05	20.29	186	2.4	1.5
HDG150-M-KF	PDF			150	120	10 to 1	5556	0.14	60	1852	0.02	36.98	23.43	27.05	20.29	213	2.4	1.5
HDG175-M-KF	PDF			175	140	5 to 1	6481	0.23	60	2160	0.03	36.98	26.18	27.05	20.29	233	2.4	1.5
HDG200-M-KF	PDF			200	160	10 to 1	7407	0.33	60	2469	0.04	36.98	28.93	27.05	20.29	263	4	2.5
HDG250-M-KF	PDF			250	200	10 to 1	9259	0.54	60	3086	0.07	36.98	34.43	27.05	20.29	333	4	2.5
HDG300-M-KF	PDF			300	240	10 to 1	11111	0.91	60	3704	0.12	36.98	39.93	27.05	20.29	391	4	2.5
HDG350-M-KF	PDF			350	280	10 to 1	12963	1.42	60	4321	0.19	36.98	45.43	27.05	20.29	443	4	2.5
HDG400-M-KF	PDF			400	320	10 to 1	14815	1.95	60	4938	0.25	36.98	48.18	27.05	20.29	460	4	2.5

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-KT	PDF			50	40	5 to 1	1852	0.01	60	617	0.01					104	2.4	1.5
HDG075-I-KT	PDF			75	60	5 to 1	2778	0.02	60	926	0.01	21.59	24.78	27.06	20.28	104	2.4	1.5
HDG100-I-KT	PDF			100	80	5 to 1	3704	0.05	60	1235	0.01	21.59	24.78	27.06	20.28	147	2.4	1.5
HDG125-I-KT	PDF			125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	24.78	27.06	20.28	186	2.4	1.5
HDG150-I-KT	PDF			150	120	10 to 1	5556	0.14	60	1852	0.02	21.59	24.78	27.06	20.28	213	2.4	1.5
HDG175-I-KT	PDF			175	140	5 to 1	6481	0.23	60	2160	0.03	21.59	27.53	27.06	20.28	233	2.4	1.5
HDG200-I-KT	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-KT	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-KT	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-KT	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-KT	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

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

Model Number	PDF	CAD	STEP	Max Input MBH	Max Output MBH	Nat. Gas Turndown Ratio	Max CFM Rise	Max APD @ Min Rise	Max Temp Rise	Min CFM Rise	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-I-KF	PDF			50	40	5 to 1	1852	0.01	60	617	0.01	21.59	24.78	27.06	20.28	104	2.4	1.5
HDG075-I-KF	PDF			75	60	5 to 1	2778	0.02	60	926	0.01	21.59	24.78	27.06	20.28	104	2.4	1.5
HDG100-I-KF	PDF			100	80	10 to 1	3704	0.05	60	1235	0.01	21.59	24.78	27.06	20.28	147	2.4	1.5
HDG125-I-KF	PDF			125	100	5 to 1	4630	0.09	60	1543	0.01	21.59	24.78	27.06	20.28	186	2.4	1.5
HDG150-I-KF	PDF			150	120	10 to 1	5556	0.14	60	1852	0.02	21.59	24.78	27.06	20.28	213	2.4	1.5
HDG175-I-KF	PDF			175	140	5 to 1	6481	0.23	60	2160	0.03	21.59	27.53	27.06	20.28	233	2.4	1.5
HDG200-I-KF	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-KF	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-KF	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-KF	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-KF	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

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