HD Style S Units

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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 230V
HDA150-B-SF	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-SF	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-SF (6)	PDF	250	202	10 to 1	6250	0.56	100	1875	0.05	30.54	30.61	45.16	18.19	278	4	2.5
HDA250-B-SF	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
HDA300-B-SF	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-SF (8)	PDF	350	284	10 to 1	8750	0.67	100	2625	0.06	37.04	30.61	45.16	18.19	439	4	2.5
HDA350-B-SF	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
HDA400-B-SF	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-SF	PDF	500	405	10 to 1	12500	0.96	100	3750	0.09	43.54	30.61	45.16	18.19	480	5
HDA600-B-SF	PDF	600	486	10 to 1	15000	1.02	100	4500	0.1	50.04	30.61	45.16	18.19	522	5
HDA150-B-SF-X2	PDF	300	243	20 to 1	3750	0.87	200	1125	0.03	24.04	61.1	45.16	18.19	488	8	5
HDA200-B-SF-X2	PDF	400	324	20 to 1	5000	1.55	200	1500	0.12	24.04	61.1	45.16	18.19	488	8	5
HDA250-B-SF-X2	PDF	500	405	10 to 1	6250	1.57	200	1875	0.13	27.29	61.1	45.16	18.19	536	8	5
HDA250-B-SF-X2 (6)	PDF	500	405	20 to 1	6250	1.11	200	1875	0.11	30.54	61.1	45.16	18.19	556	8	5
HDA300-B-SF-X2	PDF	600	486	20 to 1	7500	1.59	200	2250	0.15	30.54	61.1	45.16	18.19	585	8	5
HDA350-B-SF-X2	PDF	700	567	10 to 1	8750	1.61	200	2625	0.15	33.79	61.1	45.16	18.19	778	8	5
HDA350-B-SF-X2 (8)	PDF	700	567	20 to 1	8750	1.34	200	2625	0.12	37.04	61.1	45.16	18.19	978	8	5
HDA400-B-SF-X2	PDF	800	648	20 to 1	10000	1.75	200	3000	0.16	37.04	61.1	45.16	18.19	923	8	5
HDA500-B-SF-X2	PDF	1000	810	20 to 1	12500	1.91	200	3750	0.18	43.54	61.1	45.16	18.19	1011	10
HDA600-B-SF-X2	PDF	1200	972	20 to 1	15000	2.05	200	4500	0.19	50.04	61.1	45.16	18.19	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 230V
HDA150-B-ST	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-ST	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-ST (6)	PDF	250	202	10 to 1	6250	0.56	100	1875	0.05	30.54	30.61	45.16	18.19	278	4	2.5
HDA250-B-ST	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
HDA300-B-ST	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-ST (8)	PDF	350	284	10 to 1	8750	0.67	100	2625	0.06	37.04	30.61	45.16	18.19	439	4	2.5
HDA350-B-ST	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
HDA400-B-ST	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-ST	PDF	500	405	10 to 1	12500	0.96	100	3750	0.09	43.54	30.61	45.16	18.19	480	5
HDA600-B-ST	PDF	600	486	10 to 1	15000	1.02	100	4500	0.1	50.04	30.61	45.16	18.19	522	5
HDA150-B-ST-X2	PDF	300	243	20 to 1	3750	0.87	200	1125	0.03	24.04	61.1	45.16	18.19	488	8	5
HDA200-B-ST-X2	PDF	400	324	20 to 1	5000	1.55	200	1500	0.12	24.04	61.1	45.16	18.19	488	8	5
HDA250-B-ST-X2	PDF	500	405	10 to 1	6250	1.57	200	1875	0.13	27.29	61.1	45.16	18.19	536	8	5
HDA250-B-ST-X2 (6)	PDF	500	405	20 to 1	6250	1.11	200	1875	0.11	30.54	61.1	45.16	18.19	556	8	5
HDA300-B-ST-X2	PDF	600	486	20 to 1	7500	1.59	200	2250	0.15	30.54	61.1	45.16	18.19	585	8	5
HDA350-B-ST-X2	PDF	700	567	10 to 1	8750	1.61	200	2625	0.15	33.79	61.1	45.16	18.19	778	8	5
HDA350-B-ST-X2 (8)	PDF	700	567	20 to 1	8750	1.34	200	2625	0.12	37.04	61.1	45.16	18.19	978	8	5
HDA400-B-ST-X2	PDF	800	648	20 to 1	10000	1.75	200	3000	0.16	37.04	61.1	45.16	18.19	923	8	5
HDA500-B-ST-X2	PDF	1000	810	20 to 1	12500	1.91	200	3750	0.18	43.54	61.1	45.16	18.19	1011	10
HDA600-B-ST-X2	PDF	1200	972	20 to 1	15000	2.05	200	4500	0.19	50.04	61.1	45.16	18.19	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 230V
HDA150-F-ST	PDF	150	122	10 to 1	3750	0.44	100	1125	0.02	21.23	30.42	45.16	18.19	244	4	2.5
HDA200-F-ST	PDF	200	162	10 to 1	5000	0.78	100	1500	0.06	21.23	33.42	45.16	18.19	232	4	2.5
HDA250-F-ST (6)	PDF	250	202	10 to 1	6250	0.56	100	1875	0.05	27.73	30.42	45.16	18.19	278	4	2.5
HDA250-F-ST	PDF	250	202	5 to 1	6250	0.79	100	1875	0.07	24.48	30.42	45.16	18.19	268	4	2.5
HDA300-F-ST	PDF	300	243	10 to 1	7500	0.8	100	2250	0.07	27.73	30.42	45.16	18.19	278	4	2.5
HDA350-F-ST (8)	PDF	350	284	10 to 1	8750	0.67	100	2625	0.06	34.23	30.42	45.16	18.19	439	4	2.5
HDA350-F-ST	PDF	350	284	5 to 1	8750	0.81	100	2625	0.08	30.98	30.42	45.16	18.19	389	4	2.5
HDA400-F-ST	PDF	400	324	10 to 1	10000	0.88	100	3000	0.08	34.23	30.42	45.16	18.19	439	4	2.5
HDA500-F-ST	PDF	500	405	10 to 1	12500	0.96	100	3750	0.09	40.73	30.42	45.16	18.19	480	5
HDA600-F-ST	PDF	600	486	10 to 1	15000	1.02	100	4500	0.1	47.23	30.42	45.16	18.19	522	5
HDA150-F-ST-X2	PDF	300	243	20 to 1	7500	0.44	100	2250	0.015	42.4	30.42	45.16	18.19	488	8	5
HDA200-F-ST-X2	PDF	400	324	20 to 1	10000	0.78	100	3000	0.06	42.4	30.42	45.16	18.19	464	8	5
HDA250-F-ST-X2	PDF	500	405	10 to 1	12500	0.79	100	3750	0.065	48.9	30.42	45.16	18.19	536	8	5
HDA250-F-ST-X2 (6)	PDF	500	405	20 to 1	12500	0.56	100	3750	0.055	55.4	30.42	45.16	18.19	556	8	5
HDA300-F-ST-X2	PDF	600	486	20 to 1	15000	0.8	100	4500	0.075	55.4	30.42	45.16	18.19	556	8	5
HDA350-F-ST-X2	PDF	700	567	10 to 1	17500	0.81	100	5250	0.075	61.9	30.42	45.16	18.19	778	8	5
HDA350-F-ST-X2 (8)	PDF	700	567	20 to 1	17500	0.67	100	5250	0.06	68.4	30.42	45.16	18.19	978	8	5
HDA400-F-ST-X2	PDF	800	648	20 to 1	20000	0.88	100	6000	0.08	68.4	30.42	45.16	18.19	878	8	5
HDA500-F-ST-X2	PDF	1000	810	20 to 1	25000	0.96	100	7500	0.09	81.4	30.42	45.16	18.19	960	10
HDA600-F-ST-X2	PDF	1200	972	20 to 1	30000	1.03	100	9000	0.095	94.4	30.42	45.16	18.19	1044	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 230V
HDA150-M-SF	PDF	150	122	10 to 1	3750	0.02	80	1406	0.004	44.42	21.23	45.16	18.18	244	4	2.5
HDA200-M-SF	PDF	200	162	10 to 1	5000	0.04	80	1875	0.006	44.42	21.23	45.16	18.18	244	4	2.5
HDA250-M-SF	PDF	250	202	5 to 1	6250	0.08	80	2344	0.01	44.42	24.48	45.16	18.18	268	4	2.5
HDA250-M-SF (6)	PDF	250	202	10 to 1	6250	0.1	80	2344	0.01	44.42	27.73	45.16	18.18	278	4	2.5
HDA300-M-SF	PDF	300	243	10 to 1	7500	0.14	80	2813	0.02	44.42	27.73	45.16	18.18	278	4	2.5
HDA350-M-SF	PDF	350	284	5 to 1	8750	0.22	80	3281	0.03	44.42	30.98	45.16	18.18	389	4	2.5
HDA350-M-SF (8)	PDF	350	284	10 to 1	8750	0.27	80	3281	0.04	44.42	34.23	45.16	18.18	439	4	2.5
HDA400-M-SF	PDF	400	324	10 to 1	10000	0.35	80	3750	0.05	44.42	34.23	45.16	18.18	439	4	2.5
HDA500-M-SF	PDF	500	405	10 to 1	12500	0.65	80	4688	0.1	44.42	40.73	45.16	18.18	480	5
HDA600-M-SF	PDF	600	486	10 to 1	15000	1.18	80	5625	0.17	44.42	47.23	45.16	18.18	522	5
HDA150-M-SF-X2	PDF	300	243	20 to 1	3750	0.04	160	1406	0.008	41.42	42.34	45.16	18.18	488	8	5
HDA200-M-SF-X2	PDF	400	324	20 to 1	5000	0.08	160	1875	0.012	41.42	42.34	45.16	18.18	488	8	5
HDA250-M-SF (6)-X2	PDF	500	405	10 to 1	6250	0.2	160	2344	0.02	41.42	55.34	45.16	18.18	556	8	5
HDA250-M-SF-X2	PDF	500	405	10 to 1	6250	0.16	160	2344	0.02	41.42	48.84	45.16	18.18	536	8	5
HDA300-M-SF-X2	PDF	600	486	20 to 1	7500	0.28	160	2813	0.04	41.42	55.34	45.16	18.18	556	8	5
HDA350-M-SF (8)-X2	PDF	700	567	20 to 1	8750	0.54	160	3281	0.08	41.42	68.34	45.16	18.18	878	8	5
HDA350-M-SF-X2	PDF	700	567	10 to 1	8750	0.44	160	3281	0.06	41.42	61.84	45.16	18.18	778	8	5
HDA400-M-SF-X2	PDF	800	648	20 to 1	10000	0.7	160	3750	0.1	41.42	68.34	45.16	18.18	878	8	5
HDA500-M-SF-X2	PDF	1000	810	20 to 1	12500	1.3	160	4688	0.2	41.42	81.34	45.16	18.18	960	10
HDA600-M-SF-X2	PDF	1200	972	20 to 1	15000	2.36	160	5625	0.34	41.42	94.34	45.16	18.18	1044	10

Notes:
- Max Discharge Temp is 160°F
- 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 230V
HDA150-M-SF	PDF	150	122	10 to 1	3750	0.02	80	1406	0.004	44.42	21.23	45.16	18.18	244	4	2.5
HDA200-M-SF	PDF	200	162	10 to 1	5000	0.04	80	1875	0.006	44.42	21.23	45.16	18.18	244	4	2.5
HDA250-M-SF	PDF	250	202	5 to 1	6250	0.08	80	2344	0.01	44.42	24.48	45.16	18.18	268	4	2.5
HDA250-M-SF (6)	PDF	250	202	10 to 1	6250	0.1	80	2344	0.01	44.42	27.73	45.16	18.18	278	4	2.5
HDA300-M-SF	PDF	300	243	10 to 1	7500	0.14	80	2813	0.02	44.42	27.73	45.16	18.18	278	4	2.5
HDA350-M-SF	PDF	350	284	5 to 1	8750	0.22	80	3281	0.03	44.42	30.98	45.16	18.18	389	4	2.5
HDA350-M-SF (8)	PDF	350	284	10 to 1	8750	0.27	80	3281	0.04	44.42	34.23	45.16	18.18	439	4	2.5
HDA400-M-SF	PDF	400	324	10 to 1	10000	0.35	80	3750	0.05	44.42	34.23	45.16	18.18	439	4	2.5
HDA500-M-SF	PDF	500	405	10 to 1	12500	0.65	80	4688	0.1	44.42	40.73	45.16	18.18	480	5
HDA600-M-SF	PDF	600	486	10 to 1	15000	1.18	80	5625	0.17	44.42	47.23	45.16	18.18	522	5
HDA150-M-SF-X2	PDF	300	243	20 to 1	3750	0.04	160	1406	0.008	41.42	42.34	45.16	18.18	488	8	5
HDA200-M-SF-X2	PDF	400	324	20 to 1	5000	0.08	160	1875	0.012	41.42	42.34	45.16	18.18	488	8	5
HDA250-M-SF (6)-X2	PDF	500	405	10 to 1	6250	0.2	160	2344	0.02	41.42	55.34	45.16	18.18	556	8	5
HDA250-M-SF-X2	PDF	500	405	10 to 1	6250	0.16	160	2344	0.02	41.42	48.84	45.16	18.18	536	8	5
HDA300-M-SF-X2	PDF	600	486	20 to 1	7500	0.28	160	2813	0.04	41.42	55.34	45.16	18.18	556	8	5
HDA350-M-SF (8)-X2	PDF	700	567	20 to 1	8750	0.54	160	3281	0.08	41.42	68.34	45.16	18.18	878	8	5
HDA350-M-SF-X2	PDF	700	567	10 to 1	8750	0.44	160	3281	0.06	41.42	61.84	45.16	18.18	778	8	5
HDA400-M-SF-X2	PDF	800	648	20 to 1	10000	0.7	160	3750	0.1	41.42	68.34	45.16	18.18	878	8	5
HDA500-M-SF-X2	PDF	1000	810	20 to 1	12500	1.3	160	4688	0.2	41.42	81.34	45.16	18.18	960	10
HDA600-M-SF-X2	PDF	1200	972	20 to 1	15000	2.36	160	5625	0.34	41.42	94.34	45.16	18.18	1044	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 230V
HDA150-M-ST	PDF	150	122	10 to 1	3750	0.02	80	1406	0.004	33.42	21.23	45.16	18.18	244	4	2.5
HDA200-M-ST	PDF	200	162	10 to 1	5000	0.04	80	1875	0.006	33.42	21.23	45.16	18.18	244	4	2.5
HDA250-M-ST	PDF	250	202	5 to 1	6250	0.08	80	2344	0.01	33.42	24.48	45.16	18.18	268	4	2.5
HDA250-M-ST (6)	PDF	250	202	10 to 1	6250	0.1	80	2344	0.01	33.42	27.73	45.16	18.18	278	4	2.5
HDA300-M-ST	PDF	300	243	10 to 1	7500	0.14	80	2813	0.02	33.42	27.73	45.16	18.18	278	4	2.5
HDA350-M-ST	PDF	350	284	5 to 1	8750	0.22	80	3281	0.03	33.42	30.98	45.16	18.18	389	4	2.5
HDA350-M-ST (8)	PDF	350	284	10 to 1	8750	0.27	80	3281	0.04	33.42	34.23	45.16	18.18	439	4	2.5
HDA400-M-ST	PDF	400	324	10 to 1	10000	0.35	80	3750	0.05	33.42	34.23	45.16	18.18	439	4	2.5
HDA500-M-ST	PDF	500	405	10 to 1	12500	0.65	80	4688	0.1	33.42	40.73	45.16	18.18	480	5
HDA600-M-ST	PDF	600	486	10 to 1	15000	1.18	80	5625	0.17	33.42	47.23	45.16	18.18	522	5
HDA150-M-ST-X2	PDF	300	243	20 to 1	3750	0.04	160	1406	0.008	30.42	42.34	45.16	18.18	488	8	5
HDA200-M-ST-X2	PDF	400	324	20 to 1	5000	0.08	160	1875	0.012	30.42	42.34	45.16	18.18	488	8	5
HDA250-M-ST (6)-X2	PDF	500	405	10 to 1	6250	0.2	160	2344	0.02	30.42	55.34	45.16	18.18	556	8	5
HDA250-M-ST-X2	PDF	500	405	10 to 1	6250	0.16	160	2344	0.02	30.42	48.84	45.16	18.18	536	8	5
HDA300-M-ST-X2	PDF	600	486	20 to 1	7500	0.28	160	2813	0.04	30.42	55.34	45.16	18.18	556	8	5
HDA350-M-ST (8)-X2	PDF	700	567	20 to 1	8750	0.54	160	3281	0.08	30.42	68.34	45.16	18.18	878	8	5
HDA350-M-ST-X2	PDF	700	567	10 to 1	8750	0.44	160	3281	0.06	30.42	61.84	45.16	18.18	778	8	5
HDA400-M-ST-X2	PDF	800	648	20 to 1	10000	0.7	160	3750	0.1	30.42	68.34	45.16	18.18	878	8	5
HDA500-M-ST-X2	PDF	1000	810	20 to 1	12500	1.3	160	4688	0.2	30.42	81.34	45.16	18.18	960	10
HDA600-M-ST-X2	PDF	1200	972	20 to 1	15000	2.36	160	5625	0.34	30.42	94.34	45.16	18.18	1044	10

Note: 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 230V
HDA150-I-SF	PDF	150	122	10 to 1	3750	0.02	80	1406	0.004	30.61	18.04	45.16	18.19	210	4	2.5
HDA200-I-SF	PDF	200	162	10 to 1	5000	0.04	80	1875	0.006	30.61	18.04	45.16	18.19	220	4	2.5
HDA250-I-SF	PDF	250	202	5 to 1	6250	0.08	80	2344	0.01	30.61	21.29	45.16	18.19	250	4	2.5
HDA250-I-SF (6)	PDF	250	202	10 to 1	6250	0.1	80	2344	0.01	30.61	24.54	45.16	18.19	264	4	2.5
HDA300-I-SF	PDF	300	243	10 to 1	7500	0.14	80	2813	0.02	30.61	24.54	45.16	18.19	264	4	2.5
HDA350-I-SF	PDF	350	284	5 to 1	8750	0.22	80	3281	0.03	30.61	30.79	45.16	18.19	370	4	2.5
HDA350-I-SF (8)	PDF	350	284	10 to 1	8750	0.27	80	3281	0.04	30.61	33.79	45.16	18.19	417	4	2.5
HDA400-I-SF	PDF	400	324	10 to 1	10000	0.35	80	3750	0.05	30.61	34.04	45.16	18.19	417	4	2.5
HDA500-I-SF	PDF	500	405	10 to 1	12500	0.65	80	4688	0.1	30.61	43.54	45.16	18.19	456	5
HDA600-I-SF	PDF	600	486	10 to 1	15000	1.18	80	5625	0.17	30.61	47.04	45.16	18.19	496	5
HDA150-I-SF-X2	PDF	300	243	20 to 1	7500	0.02	80	2812	0.004	61.1	21.04	45.16	18.19	420	8	5
HDA200-I-SF-X2	PDF	400	324	20 to 1	10000	0.04	80	3750	0.006	61.1	21.04	45.16	18.19	440	8	5
HDA250-I-SF (6)-X2	PDF	500	405	10 to 1	12500	0.1	80	4688	0.01	61.1	27.54	45.16	18.19	528	8	5
HDA250-I-SF-X2	PDF	500	405	10 to 1	12500	0.08	80	4688	0.01	61.1	24.29	45.16	18.19	500	8	5
HDA300-I-SF-X2	PDF	600	486	20 to 1	15000	0.14	80	5626	0.02	61.1	27.54	45.16	18.19	528	8	5
HDA350-I-SF (8)-X2	PDF	700	567	10 to 1	17500	0.27	80	6562	0.04	61.1	33.79	45.16	18.19	834	8	5
HDA350-I-SF-X2	PDF	700	567	10 to 1	17500	0.22	80	6562	0.03	61.1	30.79	45.16	18.19	740	8	5
HDA400-I-SF-X2	PDF	800	648	20 to 1	20000	0.35	80	7500	0.05	61.1	34.04	45.16	18.19	834	8	5
HDA500-I-SF-X2	PDF	1000	810	20 to 1	25000	0.65	80	9376	0.1	61.1	43.54	45.16	18.19	912	10
HDA600-I-SF-X2	PDF	1200	972	20 to 1	30000	1.18	80	11250	0.17	61.1	47.04	45.16	18.19	992	10
HDA150-I-SF-X3	PDF	450	364	30 to 1	11250	0.02	80	4218	0.004	91.59	21.04	45.16	18.19	630	12	7.5
HDA200-I-SF-X3	PDF	600	486	30 to 1	15000	0.04	80	5625	0.006	91.59	21.04	45.16	18.19	660	12	7.5
HDA250-I-SF (6)-X3	PDF	750	608	30 to 1	18750	0.1	80	7032	0.01	91.59	27.54	45.16	18.19	792	12	7.5
HDA250-I-SF-X3	PDF	750	608	15 to 1	18750	0.08	80	7032	0.01	91.59	24.29	45.16	18.19	750	12	7.5
HDA300-I-SF-X3	PDF	900	729	30 to 1	22500	0.14	80	8439	0.02	91.59	27.54	45.16	18.19	792	12	7.5
HDA350-I-SF (8)-X3	PDF	1050	850	30 to 1	26250	0.27	80	9843	0.04	91.59	33.79	45.16	18.19	1251	12	7.5
HDA350-I-SF-X3	PDF	1050	850	15 to 1	26250	0.22	80	9843	0.03	91.59	30.79	45.16	18.19	1110	12	7.5
HDA400-I-SF-X3	PDF	1200	972	30 to 1	30000	0.35	80	11250	0.05	91.59	34.04	45.16	18.19	1251	12	7.5
HDA500-I-SF-X3	PDF	1500	1215	30 to 1	37500	0.65	80	14064	0.1	91.59	43.54	45.16	18.19	1368	15
HDA600-I-SF-X3	PDF	1800	1458	30 to 1	45000	1.18	80	16875	0.17	91.59	47.04	45.16	18.19	1488	15

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 230V
HDA150-I-ST	PDF	150	122	10 to 1	3750	0.02	80	1406	0.004	30.61	18.04	45.16	18.19	210	4	2.5
HDA200-I-ST	PDF	200	162	10 to 1	5000	0.04	80	1875	0.006	30.61	18.04	45.16	18.19	220	4	2.5
HDA250-I-ST	PDF	250	202	5 to 1	6250	0.08	80	2344	0.01	30.61	21.29	45.16	18.19	250	4	2.5
HDA250-I-ST (6)	PDF	250	202	10 to 1	6250	0.1	80	2344	0.01	30.61	24.54	45.16	18.19	264	4	2.5
HDA300-I-ST	PDF	300	243	10 to 1	7500	0.14	80	2813	0.02	30.61	24.54	45.16	18.19	264	4	2.5
HDA350-I-ST	PDF	350	284	5 to 1	8750	0.22	80	3281	0.03	30.61	30.79	45.16	18.19	370	4	2.5
HDA350-I-ST (8)	PDF	350	284	10 to 1	8750	0.27	80	3281	0.04	30.61	33.79	45.16	18.19	417	4	2.5
HDA400-I-ST	PDF	400	324	10 to 1	10000	0.35	80	3750	0.05	30.61	34.04	45.16	18.19	417	4	2.5
HDA500-I-ST	PDF	500	405	10 to 1	12500	0.65	80	4688	0.1	30.61	43.54	45.16	18.19	456	5
HDA600-I-ST	PDF	600	486	10 to 1	15000	1.18	80	5625	0.17	30.61	47.04	45.16	18.19	496	5
HDA150-I-ST-X2	PDF	300	243	20 to 1	7500	0.02	80	2812	0.004	61.1	21.04	45.16	18.19	420	8	5
HDA200-I-ST-X2	PDF	400	324	20 to 1	10000	0.04	80	3750	0.006	61.1	21.04	45.16	18.19	440	8	5
HDA250-I-ST (6)-X2	PDF	500	405	10 to 1	12500	0.1	80	4688	0.01	61.1	27.54	45.16	18.19	528	8	5
HDA250-I-ST-X2	PDF	500	405	10 to 1	12500	0.08	80	4688	0.01	61.1	24.29	45.16	18.19	500	8	5
HDA300-I-ST-X2	PDF	600	486	20 to 1	15000	0.14	80	5626	0.02	61.1	27.54	45.16	18.19	528	8	5
HDA350-I-ST (8)-X2	PDF	700	567	10 to 1	17500	0.27	80	6562	0.04	61.1	33.79	45.16	18.19	834	8	5
HDA350-I-ST-X2	PDF	700	567	10 to 1	17500	0.22	80	6562	0.03	61.1	30.79	45.16	18.19	740	8	5
HDA400-I-ST-X2	PDF	800	648	20 to 1	20000	0.35	80	7500	0.05	61.1	34.04	45.16	18.19	834	8	5
HDA500-I-ST-X2	PDF	1000	810	20 to 1	25000	0.65	80	9376	0.1	61.1	43.54	45.16	18.19	912	10
HDA600-I-ST-X2	PDF	1200	972	20 to 1	30000	1.18	80	11250	0.17	61.1	47.04	45.16	18.19	992	10
HDA150-I-ST-X3	PDF	450	364	30 to 1	11250	0.02	80	4218	0.004	91.59	21.04	45.16	18.19	630	12	7.5
HDA200-I-ST-X3	PDF	600	486	30 to 1	15000	0.04	80	5625	0.006	91.59	21.04	45.16	18.19	660	12	7.5
HDA250-I-ST (6)-X3	PDF	750	608	30 to 1	18750	0.1	80	7032	0.01	91.59	27.54	45.16	18.19	792	12	7.5
HDA250-I-ST-X3	PDF	750	608	15 to 1	18750	0.08	80	7032	0.01	91.59	24.29	45.16	18.19	750	12	7.5
HDA300-I-ST-X3	PDF	900	729	30 to 1	22500	0.14	80	8439	0.02	91.59	27.54	45.16	18.19	792	12	7.5
HDA350-I-ST (8)-X3	PDF	1050	850	30 to 1	26250	0.27	80	9843	0.04	91.59	33.79	45.16	18.19	1251	12	7.5
HDA350-I-ST-X3	PDF	1050	850	15 to 1	26250	0.22	80	9843	0.03	91.59	30.79	45.16	18.19	1110	12	7.5
HDA400-I-ST-X3	PDF	1200	972	30 to 1	30000	0.35	80	11250	0.05	91.59	34.04	45.16	18.19	1251	12	7.5
HDA500-I-ST-X3	PDF	1500	1215	30 to 1	37500	0.65	80	14064	0.1	91.59	43.54	45.16	18.19	1368	15
HDA600-I-ST-X3	PDF	1800	1458	30 to 1	45000	1.18	80	16875	0.17	91.59	47.04	45.16	18.19	1488	15

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

HDB-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 230V
HDB180-B-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	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-SF	PDF	600	486	10 to 1	15000	0.23	90	5000	0.03	48.44	24.28	79.86	18.19	516	5
HDB180-B-SF-X2	PDF	360	292	20 to 1	4500	0.21	180	1500	0.03	28.94	43.44	79.86	18.19	348	8	5
HDB200-B-SF-X2	PDF	400	324	20 to 1	5000	0.26	180	1667	0.03	28.94	43.44	79.86	18.19	348	8	5
HDB225-B-SF-X2	PDF	450	364	10 to 1	5625	0.33	180	1875	0.04	28.94	43.44	79.86	18.19	348	8	5
HDB250-B-SF-X2	PDF	500	405	10 to 1	6250	0.3	180	2083	0.03	28.94	43.44	79.86	18.19	432	8	5
HDB270-B-SF-X2	PDF	540	437	20 to 1	6750	0.26	180	2250	0.03	28.94	43.44	79.86	18.19	558	8	5
HDB300-B-SF-X2	PDF	600	486	20 to 1	7500	0.32	180	2500	0.04	28.94	43.44	79.86	18.19	558	8	5
HDB315-B-SF-X2	PDF	630	510	10 to 1	7875	0.29	180	2625	0.03	32.19	43.44	79.86	18.19	558	8	5
HDB350-B-SF-X2	PDF	700	567	10 to 1	8750	0.36	180	2917	0.04	32.19	43.44	79.86	18.19	684	8	5
HDB360-B-SF-X2	PDF	720	583	20 to 1	9000	0.32	180	3000	0.04	35.44	43.44	79.86	18.19	810	8	5
HDB375-B-SF-X2	PDF	750	608	20 to 1	9375	0.35	180	3125	0.04	35.44	43.44	79.86	18.19	810	8	5
HDB400-B-SF-X2	PDF	800	648	20 to 1	10000	0.4	180	3333	0.05	35.44	43.44	79.86	18.19	810	8	5
HDB500-B-SF-X2	PDF	1000	810	20 to 1	12500	0.42	180	4167	0.05	41.94	48.44	79.86	18.19	968	10
HDB600-B-SF-X2	PDF	1200	972	20 to 1	15000	0.46	180	5000	0.05	48.44	48.44	79.86	18.19	1032	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 230V
HDB180-B-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	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-ST	PDF	600	486	10 to 1	15000	0.23	90	5000	0.03	48.44	24.28	79.86	18.19	516	5
HDB180-B-ST-X2	PDF	360	292	20 to 1	4500	0.21	180	1500	0.03	28.94	43.44	79.86	18.19	348	8	5
HDB200-B-ST-X2	PDF	400	324	20 to 1	5000	0.26	180	1667	0.03	28.94	43.44	79.86	18.19	348	8	5
HDB225-B-ST-X2	PDF	450	364	10 to 1	5625	0.33	180	1875	0.04	28.94	43.44	79.86	18.19	348	8	5
HDB250-B-ST-X2	PDF	500	405	10 to 1	6250	0.3	180	2083	0.03	28.94	43.44	79.86	18.19	432	8	5
HDB270-B-ST-X2	PDF	540	437	20 to 1	6750	0.26	180	2250	0.03	28.94	43.44	79.86	18.19	558	8	5
HDB300-B-ST-X2	PDF	600	486	20 to 1	7500	0.32	180	2500	0.04	28.94	43.44	79.86	18.19	558	8	5
HDB315-B-ST-X2	PDF	630	510	10 to 1	7875	0.29	180	2625	0.03	32.19	43.44	79.86	18.19	558	8	5
HDB350-B-ST-X2	PDF	700	567	10 to 1	8750	0.36	180	2917	0.04	32.19	43.44	79.86	18.19	684	8	5
HDB360-B-ST-X2	PDF	720	583	20 to 1	9000	0.32	180	3000	0.04	35.44	43.44	79.86	18.19	810	8	5
HDB375-B-ST-X2	PDF	750	608	20 to 1	9375	0.35	180	3125	0.04	35.44	43.44	79.86	18.19	810	8	5
HDB400-B-ST-X2	PDF	800	648	20 to 1	10000	0.4	180	3333	0.05	35.44	43.44	79.86	18.19	810	8	5
HDB500-B-ST-X2	PDF	1000	810	20 to 1	12500	0.42	180	4167	0.05	41.94	48.44	79.86	18.19	968	10
HDB600-B-ST-X2	PDF	1200	972	20 to 1	15000	0.46	180	5000	0.05	48.44	48.44	79.86	18.19	1032	10

Notes:
- Max Discharge Temp is 160°F
- 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 230V
HDB180-F-SF	PDF	180	146	10 to 1	4500	0.11	90	1500	0.01	22.65	30.19	78.87	18.19	174	4	2.5
HDB200-F-SF	PDF	200	162	10 to 1	5000	0.13	90	1667	0.02	22.65	30.19	78.87	18.19	174	4	2.5
HDB225-F-SF	PDF	225	182	5 to 1	5625	0.16	90	1875	0.02	25.9	30.19	78.87	18.19	174	4	2.5
HDB250-F-SF	PDF	250	202	5 to 1	6250	0.15	90	2083	0.02	25.9	30.19	78.87	18.19	216	4	2.5
HDB270-F-SF	PDF	270	219	10 to 1	6750	0.13	90	2250	0.02	29.15	30.19	78.87	18.19	279	4	2.5
HDB300-F-SF	PDF	300	243	10 to 1	7500	0.16	90	2500	0.02	29.15	30.19	78.87	18.19	279	4	2.5
HDB315-F-SF	PDF	315	255	5 to 1	7875	0.15	90	2625	0.02	32.4	30.19	78.87	18.19	279	4	2.5
HDB350-F-SF	PDF	350	284	5 to 1	8750	0.18	90	2917	0.02	32.4	30.19	78.87	18.19	342	4	2.5
HDB360-F-SF	PDF	360	292	10 to 1	9000	0.16	90	3000	0.02	35.65	30.19	78.87	18.19	405	4	2.5
HDB375-F-SF	PDF	375	304	10 to 1	9375	0.18	90	3125	0.02	35.65	30.19	78.87	18.19	405	4	2.5
HDB400-F-SF	PDF	400	324	10 to 1	10000	0.2	90	3333	0.02	35.65	30.19	78.87	18.19	405	4	2.5
HDB500-F-SF	PDF	500	405	10 to 1	12500	0.21	90	4167	0.02	42.15	32.69	78.87	18.19	484	5
HDB600-F-SF	PDF	600	486	10 to 1	15000	0.23	90	5000	0.03	48.65	32.69	78.87	18.19	516	5
HDB180-F-SF-X2	PDF	360	292	20 to 1	9000	0.11	90	3000	0.01	45.18	30.19	78.87	18.19	348	8	5
HDB200-F-SF-X2	PDF	400	324	20 to 1	10000	0.13	90	3334	0.02	45.18	30.19	78.87	18.19	348	8	5
HDB225-F-SF-X2	PDF	450	364	10 to 1	11250	0.16	90	3750	0.02	51.68	30.19	78.87	18.19	348	8	5
HDB250-F-SF-X2	PDF	500	405	10 to 1	12500	0.15	90	4166	0.02	51.68	30.19	78.87	18.19	432	8	5
HDB270-F-SF-X2	PDF	540	437	20 to 1	13500	0.13	90	4500	0.02	58.18	30.19	78.87	18.19	558	8	5
HDB300-F-SF-X2	PDF	600	486	20 to 1	15000	0.16	90	5000	0.02	58.18	30.19	78.87	18.19	558	8	5
HDB315-F-SF-X2	PDF	630	510	10 to 1	15750	0.15	90	5250	0.02	64.68	30.19	78.87	18.19	558	8	5
HDB350-F-SF-X2	PDF	700	567	10 to 1	17500	0.18	90	5834	0.02	64.68	30.19	78.87	18.19	684	8	5
HDB360-F-SF-X2	PDF	720	583	20 to 1	18000	0.16	90	6000	0.02	71.18	30.19	78.87	18.19	810	8	5
HDB375-F-SF-X2	PDF	750	608	20 to 1	18750	0.18	90	6250	0.02	71.18	30.19	78.87	18.19	810	8	5
HDB400-F-SF-X2	PDF	800	648	20 to 1	20000	0.2	90	6666	0.02	71.18	30.19	78.87	18.19	810	8	5
HDB500-F-SF-X2	PDF	1000	810	20 to 1	25000	0.21	90	8334	0.02	84.18	32.69	78.87	18.19	968	10
HDB600-F-SF-X2	PDF	1200	972	20 to 1	30000	0.23	90	10000	0.03	97.18	32.69	78.87	18.19	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 230V
HDB180-F-ST	PDF	180	146	10 to 1	4500	0.11	90	1500	0.01	22.65	21.57	78.87	18.19	174	4	2.5
HDB200-F-ST	PDF	200	162	10 to 1	5000	0.13	90	1667	0.02	22.65	21.57	78.87	18.19	174	4	2.5
HDB225-F-ST	PDF	225	182	5 to 1	5625	0.16	90	1875	0.02	25.9	21.57	78.87	18.19	174	4	2.5
HDB250-F-ST	PDF	250	202	5 to 1	6250	0.15	90	2083	0.02	25.9	21.57	78.87	18.19	216	4	2.5
HDB270-F-ST	PDF	270	219	10 to 1	6750	0.13	90	2250	0.02	29.15	21.57	78.87	18.19	279	4	2.5
HDB300-F-ST	PDF	300	243	10 to 1	7500	0.16	90	2500	0.02	29.15	21.57	78.87	18.19	279	4	2.5
HDB315-F-ST	PDF	315	255	5 to 1	7875	0.15	90	2625	0.02	32.4	21.57	78.87	18.19	279	4	2.5
HDB350-F-ST	PDF	350	284	5 to 1	8750	0.18	90	2917	0.02	32.4	21.57	78.87	18.19	342	4	2.5
HDB360-F-ST	PDF	360	292	10 to 1	9000	0.16	90	3000	0.02	35.65	21.57	78.87	18.19	405	4	2.5
HDB375-F-ST	PDF	375	304	10 to 1	9375	0.18	90	3125	0.02	35.65	21.57	78.87	18.19	405	4	2.5
HDB400-F-ST	PDF	400	324	10 to 1	10000	0.2	90	3333	0.02	35.65	21.57	78.87	18.19	405	4	2.5
HDB500-F-ST	PDF	500	405	10 to 1	12500	0.21	90	4167	0.02	42.15	24.07	78.87	18.19	484	5
HDB600-F-ST	PDF	600	486	10 to 1	15000	0.23	90	5000	0.03	48.65	24.07	78.87	18.19	516	5
HDB180-F-ST-X2	PDF	360	292	20 to 1	9000	0.11	90	3000	0.01	45.18	21.57	78.87	18.19	348	8	5
HDB200-F-ST-X2	PDF	400	324	20 to 1	10000	0.13	90	3334	0.02	45.18	21.57	78.87	18.19	348	8	5
HDB225-F-ST-X2	PDF	450	364	10 to 1	11250	0.16	90	3750	0.02	51.68	21.57	78.87	18.19	348	8	5
HDB250-F-ST-X2	PDF	500	405	10 to 1	12500	0.15	90	4166	0.02	51.68	21.57	78.87	18.19	432	8	5
HDB270-F-ST-X2	PDF	540	437	20 to 1	13500	0.13	90	4500	0.02	58.18	21.57	78.87	18.19	558	8	5
HDB300-F-ST-X2	PDF	600	486	20 to 1	15000	0.16	90	5000	0.02	58.18	21.57	78.87	18.19	558	8	5
HDB315-F-ST-X2	PDF	630	510	10 to 1	15750	0.15	90	5250	0.02	64.68	21.57	78.87	18.19	558	8	5
HDB350-F-ST-X2	PDF	700	567	10 to 1	17500	0.18	90	5834	0.02	64.68	21.57	78.87	18.19	684	8	5
HDB360-F-ST-X2	PDF	720	583	20 to 1	18000	0.16	90	6000	0.02	71.18	21.57	78.87	18.19	810	8	5
HDB375-F-ST-X2	PDF	750	608	20 to 1	18750	0.18	90	6250	0.02	71.18	21.57	78.87	18.19	810	8	5
HDB400-F-ST-X2	PDF	800	648	20 to 1	20000	0.2	90	6666	0.02	71.18	21.57	78.87	18.19	810	8	5
HDB500-F-ST-X2	PDF	1000	810	20 to 1	25000	0.21	90	8334	0.02	84.18	24.07	78.87	18.19	968	10
HDB600-F-ST-X2	PDF	1200	972	20 to 1	30000	0.23	90	10000	0.03	97.18	24.07	78.87	18.19	1032	10

Note: 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 230V
HDG050-B-SF	PDF	50	40	5 to 1	1250	0.12	90	417	0.01	26.82	22.14	29.97	18.19	76	2.4	1.5
HDG075-B-SF	PDF	75	61	5 to 1	1875	0.26	90	625	0.03	26.82	22.14	29.97	18.19	76	2.4	1.5
HDG100-B-SF	PDF	100	81	10 to 1	2500	0.34	90	833	0.04	26.82	22.14	29.97	18.19	110	2.4	1.5
HDG125-B-SF	PDF	125	101	5 to 1	3125	0.39	90	1042	0.05	26.82	22.14	29.97	18.19	140	2.4	1.5
HDG150-B-SF	PDF	150	122	10 to 1	3750	0.47	90	1250	0.05	26.82	22.14	29.97	18.19	157	2.4	1.5
HDG175-B-SF	PDF	175	142	5 to 1	4375	0.51	90	1458	0.06	29.57	22.14	29.97	18.19	168	2.4	1.5
HDG200-B-SF	PDF	200	162	10 to 1	5000	0.53	90	1667	0.06	32.32	22.14	29.97	18.19	188	4	2.4
HDG250-B-SF	PDF	250	202	10 to 1	6250	0.58	90	2083	0.07	37.82	19.14	29.97	18.19	240	4	2.4
HDG300-B-SF	PDF	300	243	10 to 1	7500	0.66	90	2500	0.08	43.32	19.14	29.97	18.19	279	4	2.4
HDG350-B-SF	PDF	350	284	10 to 1	8750	0.74	90	2917	0.08	48.82	19.14	29.97	18.19	312	4	2.4
HDG400-B-SF	PDF	400	324	10 to 1	10000	0.8	90	3333	0.09	51.57	19.14	29.97	18.19	320	4	2.4
HDG500-B-SF	PDF	500	405	10 to 1	12500	0.93	90	4167	0.1	56.82	22.14	29.03	18.19		5	3.1
HDG600-B-SF	PDF	600	486	10 to 1	15000	0.9	90	5000	0.1	67.82	22.14	29.03	18.19		5	3.1
HDG050-B-SF-X2	PDF	100	81	10 to 1	1250	0.24	180	417	0.02	23.82	44.17	29.03	18.19	152	4.8	3
HDG075-B-SF-X2	PDF	150	122	10 to 1	1875	0.52	180	625	0.06	23.82	44.17	29.03	18.19	152	4.8	3
HDG100-B-SF-X2	PDF	200	162	20 to 1	2500	0.68	180	833	0.08	23.82	44.17	29.03	18.19	220	4.8	3
HDG125-B-SF-X2	PDF	250	202	10 to 1	3125	0.78	180	1042	0.1	23.82	44.17	29.03	18.19	280	4.8	3
HDG150-B-SF-X2	PDF	300	243	20 to 1	3750	0.94	180	1250	0.1	23.82	44.17	29.03	18.19	314	4.8	3
HDG175-B-SF-X2	PDF	350	284	10 to 1	4375	1.02	180	1458	0.12	26.57	44.17	29.03	18.19	336	4.8	3
HDG200-B-SF-X2	PDF	400	324	20 to 1	5000	1.06	180	1667	0.12	29.32	44.17	29.03	18.19	376	8	4.8
HDG250-B-SF-X2	PDF	500	405	20 to 1	6250	1.16	180	2083	0.14	34.82	44.17	29.03	18.19	480	8	4.8
HDG300-B-SF-X2	PDF	600	486	20 to 1	7500	1.32	180	2500	0.16	40.32	44.17	29.03	18.19	558	8	4.8
HDG350-B-SF-X2	PDF	700	567	20 to 1	8750	1.48	180	2917	0.16	45.82	44.17	29.03	18.19	624	8	4.8
HDG400-B-SF-X2	PDF	800	648	20 to 1	10000	1.6	180	3333	0.18	48.57	44.17	29.03	18.19	640	8	4.8
HDG500-B-SF-X2	PDF	1000	810	20 to 1	12500	1.86	180	4167	0.2	56.82	44.17	29.03	18.19		10	6.2
HDG600-B-SF-X2	PDF	1200	972	20 to 1	15000	1.8	180	5000	0.2	67.82	44.17	29.03	18.19		10	6.2

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 230V
HDG050-B-ST	PDF	50	40	5 to 1	1250	0.12	90	417	0.01	26.82	22.14	29.97	18.19	76	2.4	1.5
HDG075-B-ST	PDF	75	61	5 to 1	1875	0.26	90	625	0.03	26.82	22.14	29.97	18.19	76	2.4	1.5
HDG100-B-ST	PDF	100	81	10 to 1	2500	0.34	90	833	0.04	26.82	22.14	29.97	18.19	110	2.4	1.5
HDG125-B-ST	PDF	125	101	5 to 1	3125	0.39	90	1042	0.05	26.82	22.14	29.97	18.19	140	2.4	1.5
HDG150-B-ST	PDF	150	122	10 to 1	3750	0.47	90	1250	0.05	26.82	22.14	29.97	18.19	157	2.4	1.5
HDG175-B-ST	PDF	175	142	5 to 1	4375	0.51	90	1458	0.06	29.57	22.14	29.97	18.19	168	2.4	1.5
HDG200-B-ST	PDF	200	162	10 to 1	5000	0.53	90	1667	0.06	32.32	22.14	29.97	18.19	188	4	2.4
HDG250-B-ST	PDF	250	202	10 to 1	6250	0.58	90	2083	0.07	37.82	19.14	29.97	18.19	240	4	2.4
HDG300-B-ST	PDF	300	243	10 to 1	7500	0.66	90	2500	0.08	43.32	19.14	29.97	18.19	279	4	2.4
HDG350-B-ST	PDF	350	284	10 to 1	8750	0.74	90	2917	0.08	48.82	19.14	29.97	18.19	312	4	2.4
HDG400-B-ST	PDF	400	324	10 to 1	10000	0.8	90	3333	0.09	51.57	19.14	29.97	18.19	320	4	2.4
HDG500-B-ST	PDF	500	405	10 to 1	12500	0.93	90	4167	0.1	56.82	22.14	29.03	18.19		5	3.1
HDG600-B-ST	PDF	600	486	10 to 1	15000	0.9	90	5000	0.1	67.82	22.14	29.03	18.19		5	3.1
HDG050-B-ST-X2	PDF	100	81	10 to 1	1250	0.24	180	417	0.02	23.82	44.17	29.03	18.19	152	4.8	3
HDG075-B-ST-X2	PDF	150	122	10 to 1	1875	0.52	180	625	0.06	23.82	44.17	29.03	18.19	152	4.8	3
HDG100-B-ST-X2	PDF	200	162	20 to 1	2500	0.68	180	833	0.08	23.82	44.17	29.03	18.19	220	4.8	3
HDG125-B-ST-X2	PDF	250	202	10 to 1	3125	0.78	180	1042	0.1	23.82	44.17	29.03	18.19	280	4.8	3
HDG150-B-ST-X2	PDF	300	243	20 to 1	3750	0.94	180	1250	0.1	23.82	44.17	29.03	18.19	314	4.8	3
HDG175-B-ST-X2	PDF	350	284	10 to 1	4375	1.02	180	1458	0.12	26.57	44.17	29.03	18.19	336	4.8	3
HDG200-B-ST-X2	PDF	400	324	20 to 1	5000	1.06	180	1667	0.12	29.32	44.17	29.03	18.19	376	8	4.8
HDG250-B-ST-X2	PDF	500	405	20 to 1	6250	1.16	180	2083	0.14	34.82	44.17	29.03	18.19	480	8	4.8
HDG300-B-ST-X2	PDF	600	486	20 to 1	7500	1.32	180	2500	0.16	40.32	44.17	29.03	18.19	558	8	4.8
HDG350-B-ST-X2	PDF	700	567	20 to 1	8750	1.48	180	2917	0.16	45.82	44.17	29.03	18.19	624	8	4.8
HDG400-B-ST-X2	PDF	800	648	20 to 1	10000	1.6	180	3333	0.18	48.57	44.17	29.03	18.19	640	8	4.8
HDG500-B-ST-X2	PDF	1000	810	20 to 1	12500	1.86	180	4167	0.2	56.82	44.17	29.03	18.19		10	6.2
HDG600-B-ST-X2	PDF	1200	972	20 to 1	15000	1.8	180	5000	0.2	67.82	44.17	29.03	18.19		10	6.2

Note: 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 230V
HDG050-F-ST	PDF	50	40	5 to 1	1250	0.12	90	417	0.01	15.75	24.96	29.03	18.19	76	2.4	1.5
HDG075-F-ST	PDF	75	61	5 to 1	1875	0.26	90	625	0.03	15.75	24.96	29.03	18.19	76	2.4	1.5
HDG100-F-ST	PDF	100	81	10 to 1	2500	0.34	90	833	0.04	18.5	24.96	29.03	18.19	110	2.4	1.5
HDG125-F-ST	PDF	125	101	5 to 1	3125	0.39	90	1042	0.05	21.25	24.96	29.03	18.19	140	2.4	1.5
HDG150-F-ST	PDF	150	122	10 to 1	3750	0.47	90	1250	0.05	24	21.96	29.03	18.19	157	2.4	1.5
HDG175-F-ST	PDF	175	142	5 to 1	4375	0.51	90	1458	0.06	26.75	21.96	29.03	18.19	168	2.4	1.5
HDG200-F-ST	PDF	200	162	10 to 1	5000	0.53	90	1667	0.06	29.5	21.96	29.03	18.19	188	4	2.4
HDG250-F-ST	PDF	250	202	10 to 1	6250	0.58	90	2083	0.07	35	21.96	29.03	18.19	240	4	2.4
HDG300-F-ST	PDF	300	243	10 to 1	7500	0.66	90	2500	0.08	40.5	24.96	29.03	18.19	279	4	2.4
HDG350-F-ST	PDF	350	284	10 to 1	8750	0.74	90	2917	0.08	46	24.96	29.03	18.19	312	4	2.4
HDG400-F-ST	PDF	400	324	10 to 1	10000	0.8	90	3333	0.09	48.75	24.96	29.03	18.19	320	4	2.4
HDG500-F-ST	PDF	500	405	10 to 1	12500	0.93	90	4167	0.1	57	24.96	29.03	18.19		5	3.1
HDG600-F-ST	PDF	600	486	10 to 1	15000	0.9	90	5000	0.1	68	24.96	29.03	18.19		5	3.1
HDG050-F-ST-X2	PDF	100	81	10 to 1	2500	0.12	90	834	0.01	31.39	21.96	29.03	18.19	152	4.8	3
HDG075-F-ST-X2	PDF	150	122	10 to 1	3750	0.26	90	1250	0.03	31.39	21.96	29.03	18.19	152	4.8	3
HDG100-F-ST-X2	PDF	200	162	20 to 1	5000	0.34	90	1666	0.04	36.89	21.96	29.03	18.19	220	4.8	3
HDG125-F-ST-X2	PDF	250	202	10 to 1	6250	0.39	90	2084	0.05	42.39	21.96	29.03	18.19	280	4.8	3
HDG150-F-ST-X2	PDF	300	243	20 to 1	7500	0.47	90	2500	0.05	47.89	21.96	29.03	18.19	314	4.8	3
HDG175-F-ST-X2	PDF	350	284	10 to 1	8750	0.51	90	2916	0.06	26.75	21.96	29.03	18.19	336	4.8	3
HDG200-F-ST-X2	PDF	400	324	20 to 1	10000	0.53	90	3334	0.06	53.39	21.96	29.03	18.19	376	8	4.8
HDG250-F-ST-X2	PDF	500	405	20 to 1	12500	0.58	90	4166	0.07	69.89	21.96	29.03	18.19	480	8	4.8
HDG300-F-ST-X2	PDF	600	486	20 to 1	15000	0.66	90	5000	0.08	80.89	21.96	29.03	18.19	558	8	4.8
HDG350-F-ST-X2	PDF	700	567	20 to 1	17500	0.74	90	5834	0.08	91.89	21.96	29.03	18.19	624	8	4.8
HDG400-F-ST-X2	PDF	800	648	20 to 1	20000	0.8	90	6666	0.09	97.39	21.96	29.03	18.19	640	8	4.8

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 230V
HDG050-F-SF	PDF	50	40	5 to 1	1250	0.12	90	417	0.01	15.75	32.96	29.03	18.19	76	2.4	1.5
HDG075-F-SF	PDF	75	61	5 to 1	1875	0.26	90	625	0.03	15.75	32.96	29.03	18.19	76	2.4	1.5
HDG100-F-SF	PDF	100	81	10 to 1	2500	0.34	90	833	0.04	18.5	32.96	29.03	18.19	110	2.4	1.5
HDG125-F-SF	PDF	125	101	5 to 1	3125	0.39	90	1042	0.05	21.25	32.96	29.03	18.19	140	2.4	1.5
HDG150-F-SF	PDF	150	122	10 to 1	3750	0.47	90	1250	0.05	24	29.96	29.03	18.19	157	2.4	1.5
HDG175-F-SF	PDF	175	142	5 to 1	4375	0.51	90	1458	0.06	26.75	29.96	29.03	18.19	168	2.4	1.5
HDG200-F-SF	PDF	200	162	10 to 1	5000	0.53	90	1667	0.06	29.5	29.96	29.03	18.19	188	4	2.4
HDG250-F-SF	PDF	250	202	10 to 1	6250	0.58	90	2083	0.07	35	29.96	29.03	18.19	240	4	2.4
HDG300-F-SF	PDF	300	243	10 to 1	7500	0.66	90	2500	0.08	40.5	32.96	29.03	18.19	279	4	2.4
HDG350-F-SF	PDF	350	284	10 to 1	8750	0.74	90	2917	0.08	46	32.96	29.03	18.19	312	4	2.4
HDG400-F-SF	PDF	400	324	10 to 1	10000	0.8	90	3333	0.09	48.75	32.96	29.03	18.19	320	4	2.4
HDG500-F-SF	PDF	500	405	10 to 1	12500	0.93	90	4167	0.1	57	32.96	29.03	18.19		5	3.1
HDG600-F-SF	PDF	600	486	10 to 1	15000	0.9	90	5000	0.1	68	32.96	29.03	18.19		5	3.1
HDG050-F-SF-X2	PDF	100	81	10 to 1	2500	0.12	90	834	0.01	31.39	29.96	29.03	18.19	152	4.8	3
HDG075-F-SF-X2	PDF	150	122	10 to 1	3750	0.26	90	1250	0.03	31.39	29.96	29.03	18.19	152	4.8	3
HDG100-F-SF-X2	PDF	200	162	20 to 1	5000	0.34	90	1666	0.04	36.89	29.96	29.03	18.19	220	4.8	3
HDG125-F-SF-X2	PDF	250	202	10 to 1	6250	0.39	90	2084	0.05	42.39	29.96	29.03	18.19	280	4.8	3
HDG150-F-SF-X2	PDF	300	243	20 to 1	7500	0.47	90	2500	0.05	47.89	29.96	29.03	18.19	314	4.8	3
HDG175-F-SF-X2	PDF	350	284	10 to 1	8750	0.51	90	2916	0.06	26.75	29.96	29.03	18.19	336	4.8	3
HDG200-F-SF-X2	PDF	400	324	20 to 1	10000	0.53	90	3334	0.06	53.39	29.96	29.03	18.19	376	8	4.8
HDG250-F-SF-X2	PDF	500	405	20 to 1	12500	0.58	90	4166	0.07	69.89	29.96	29.03	18.19	480	8	4.8
HDG300-F-SF-X2	PDF	600	486	20 to 1	15000	0.66	90	5000	0.08	80.89	29.96	29.03	18.19	558	8	4.8
HDG350-F-SF-X2	PDF	700	567	20 to 1	17500	0.74	90	5834	0.08	91.89	29.96	29.03	18.19	624	8	4.8
HDG400-F-SF-X2	PDF	800	648	20 to 1	20000	0.8	90	6666	0.09	97.39	29.96	29.03	18.19	640	8	4.8

Note: 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 230V
HDG050-M-SF	PDF	50	41	5 to 1	1250	0.01	70	536	0.002	21.96	15.75	29.03	18.19	104	2.4	1.5
HDG075-M-SF	PDF	75	61	5 to 1	1875	0.03	70	804	0.005	21.96	15.75	29.03	18.19	104	2.4	1.5
HDG100-M-SF	PDF	100	81	10 to 1	2500	0.06	70	1071	0.01	21.96	18.5	29.03	18.19	147	2.4	1.5
HDG125-M-SF	PDF	125	101	5 to 1	3125	0.12	70	1339	0.02	21.96	21.25	29.03	18.19	186	2.4	1.5
HDG150-M-SF	PDF	150	122	10 to 1	3750	0.21	70	1607	0.04	21.96	24	29.03	18.19	213	2.4	1.5
HDG175-M-SF	PDF	175	142	5 to 1	4375	0.35	70	1875	0.07	21.96	23.75	29.03	18.19	233	2.4	1.5
HDG200-M-SF	PDF	200	162	10 to 1	5000	0.52	70	2143	0.1	21.96	26.5	29.03	18.19	263	4	2.4
HDG250-M-SF	PDF	250	203	10 to 1	6250	1.03	70	2679	0.18	21.96	32	29.03	18.19	333	4	2.4
HDG300-M-SF	PDF	300	243	10 to 1	7500	1.78	70	3214	0.32	21.96	37.5	29.03	18.19	391	4	2.4
HDG350-M-SF	PDF	350	284	10 to 1	8750	2.87	70	3750	0.55	21.96	43	29.03	18.19	443	4	2.4
HDG400-M-SF	PDF	400	324	10 to 1	10000	4.14	70	4286	0.73	21.96	45.75	29.03	18.19	460	4	2.4
HDG050-M-SF-X2	PDF	100	81	10 to 1	1250	0.02	140	536	0.004	29.96	31.39	29.03	18.19	208	4.8	3
HDG075-M-SF-X2	PDF	150	122	10 to 1	1875	0.06	140	804	0.01	29.96	31.39	29.03	18.19	208	4.8	3
HDG100-M-SF-X2	PDF	200	162	20 to 1	2500	0.12	140	1071	0.02	29.96	36.89	29.03	18.19	294	4.8	3
HDG125-M-SF-X2	PDF	250	202	10 to 1	3125	0.24	140	1339	0.04	29.96	42.39	29.03	18.19	372	4.8	3
HDG150-M-SF-X2	PDF	300	243	20 to 1	3750	0.42	140	1607	0.08	29.96	47.89	29.03	18.19	426	4.8	3
HDG175-M-SF-X2	PDF	350	284	10 to 1	4375	0.7	140	1875	0.14	29.96	53.39	29.03	18.19	466	4.8	3
HDG200-M-SF-X2	PDF	400	324	20 to 1	5000	1.04	140	2143	0.2	29.96	58.89	29.03	18.19	526	8	4.8
HDG250-M-SF-X2	PDF	500	405	20 to 1	6250	2.06	140	2679	0.36	29.96	69.89	29.03	18.19	666	8	4.8
HDG300-M-SF-X2	PDF	600	486	20 to 1	7500	3.56	140	3214	0.64	29.96	80.89	29.03	18.19	782	8	4.8
HDG350-M-SF-X2	PDF	700	567	20 to 1	8750	5.74	140	3750	1.1	29.96	91.89	29.03	18.19	886	8	4.8
HDG400-M-SF-X2	PDF	800	648	20 to 1	10000	8.28	140	4286	1.46	29.96	97.39	29.03	18.19	920	8	4.8

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 230V
HDG050-M-ST	PDF	50	41	5 to 1	1250	0.01	70	536	0.002	21.96	15.75	29.03	18.19	104	2.4	1.5
HDG075-M-ST	PDF	75	61	5 to 1	1875	0.03	70	804	0.005	21.96	15.75	29.03	18.19	104	2.4	1.5
HDG100-M-ST	PDF	100	81	10 to 1	2500	0.06	70	1071	0.01	21.96	18.5	29.03	18.19	147	2.4	1.5
HDG125-M-ST	PDF	125	101	5 to 1	3125	0.12	70	1339	0.02	21.96	21.25	29.03	18.19	186	2.4	1.5
HDG150-M-ST	PDF	150	122	10 to 1	3750	0.21	70	1607	0.04	21.96	24	29.03	18.19	213	2.4	1.5
HDG175-M-ST	PDF	175	142	5 to 1	4375	0.35	70	1875	0.07	21.96	23.75	29.03	18.19	233	2.4	1.5
HDG200-M-ST	PDF	200	162	10 to 1	5000	0.52	70	2143	0.1	21.96	26.5	29.03	18.19	263	4	2.4
HDG250-M-ST	PDF	250	203	10 to 1	6250	1.03	70	2679	0.18	21.96	32	29.03	18.19	333	4	2.4
HDG300-M-ST	PDF	300	243	10 to 1	7500	1.78	70	3214	0.32	21.96	37.5	29.03	18.19	391	4	2.4
HDG350-M-ST	PDF	350	284	10 to 1	8750	2.87	70	3750	0.55	21.96	43	29.03	18.19	443	4	2.4
HDG400-M-ST	PDF	400	324	10 to 1	10000	4.14	70	4286	0.73	21.96	45.75	29.03	18.19	460	4	2.4
HDG050-M-ST-X2	PDF	100	81	10 to 1	1250	0.02	140	536	0.004	21.96	31.39	29.03	18.19	208	4.8	3
HDG075-M-ST-X2	PDF	150	122	10 to 1	1875	0.06	140	804	0.01	21.96	31.39	29.03	18.19	208	4.8	3
HDG100-M-ST-X2	PDF	200	162	20 to 1	2500	0.12	140	1071	0.02	21.96	36.89	29.03	18.19	294	4.8	3
HDG125-M-ST-X2	PDF	250	202	10 to 1	3125	0.24	140	1339	0.04	21.96	42.39	29.03	18.19	372	4.8	3
HDG150-M-ST-X2	PDF	300	243	20 to 1	3750	0.42	140	1607	0.08	21.96	47.89	29.03	18.19	426	4.8	3
HDG175-M-ST-X2	PDF	350	284	10 to 1	4375	0.7	140	1875	0.14	21.96	53.39	29.03	18.19	466	4.8	3
HDG200-M-ST-X2	PDF	400	324	20 to 1	5000	1.04	140	2143	0.2	21.96	58.89	29.03	18.19	526	8	4.8
HDG250-M-ST-X2	PDF	500	405	20 to 1	6250	2.06	140	2679	0.36	21.96	69.89	29.03	18.19	666	8	4.8
HDG300-M-ST-X2	PDF	600	486	20 to 1	7500	3.56	140	3214	0.64	21.96	80.89	29.03	18.19	782	8	4.8
HDG350-M-ST-X2	PDF	700	567	20 to 1	8750	5.74	140	3750	1.1	21.96	91.89	29.03	18.19	886	8	4.8
HDG400-M-ST-X2	PDF	800	648	20 to 1	10000	8.28	140	4286	1.46	21.96	97.39	29.03	18.19	920	8	4.8

Note: 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 230V
HDG050-I-SF	PDF	50	41	5 to 1	1250	0.01	70	536	0.002	22.14	26.82	29.02	18.19	104	2.4	1.5
HDG075-I-SF	PDF	75	61	5 to 1	1875	0.03	70	804	0.005	22.14	26.82	29.02	18.19	104	2.4	1.5
HDG100-I-SF	PDF	100	81	10 to 1	2500	0.06	70	1071	0.01	22.14	26.82	29.02	18.19	147	2.4	1.5
HDG125-I-SF	PDF	125	101	5 to 1	3125	0.12	70	1339	0.02	22.14	26.82	29.02	18.19	186	2.4	1.5
HDG150-I-SF	PDF	150	122	10 to 1	3750	0.21	70	1607	0.04	22.14	26.82	29.02	18.19	213	2.4	1.5
HDG175-I-SF	PDF	175	142	5 to 1	4375	0.35	70	1875	0.07	22.14	26.57	29.02	18.19	233	2.4	1.5
HDG200-I-SF	PDF	200	162	10 to 1	5000	0.52	70	2143	0.1	22.14	29.32	29.02	18.19	263	4	2.4
HDG250-I-SF	PDF	250	203	10 to 1	6250	1.03	70	2679	0.18	22.14	34.82	29.02	18.19	333	4	2.4
HDG300-I-SF	PDF	300	243	10 to 1	7500	1.78	70	3214	0.32	22.14	40.32	29.02	18.19	391	4	2.4
HDG350-I-SF	PDF	350	284	10 to 1	8750	2.87	70	3750	0.55	22.14	45.82	29.02	18.19	443	4	2.4
HDG400-I-SF	PDF	400	324	10 to 1	10000	4.14	70	4286	0.73	22.14	48.57	29.02	18.19	460	4	2.4
HDG050-I-SF-X2	PDF	100	81	10 to 1	2500	0.01	70	1072	0.002	44.17	23.82	29.02	18.19	208	4.8	3
HDG075-I-SF-X2	PDF	150	122	10 to 1	3750	0.03	70	1608	0.005	44.17	23.82	29.02	18.19	208	4.8	3
HDG100-I-SF-X2	PDF	200	162	20 to 1	5000	0.06	70	2142	0.01	44.17	23.82	29.02	18.19	294	4.8	3
HDG125-I-SF-X2	PDF	250	202	10 to 1	6250	0.12	70	2678	0.02	44.17	23.82	29.02	18.19	372	4.8	3
HDG150-I-SF-X2	PDF	300	243	20 to 1	7500	0.21	70	3214	0.04	44.17	23.82	29.02	18.19	426	4.8	3
HDG175-I-SF-X2	PDF	350	284	10 to 1	8750	0.35	70	3750	0.07	44.17	26.57	29.02	18.19	466	4.8	3
HDG050-I-SF-X3	PDF	150	122	15 to 1	3750	0.01	70	1608	0.002	66.2	23.82	29.02	18.19	312	7.2	4.5
HDG075-I-SF-X3	PDF	225	182	15 to 1	5625	0.03	70	2412	0.005	66.2	23.82	29.02	18.19	312	7.2	4.5
HDG100-I-SF-X3	PDF	300	243	30 to 1	7500	0.06	70	3213	0.01	66.2	23.82	29.02	18.19	441	7.2	4.5
HDG125-I-SF-X3	PDF	375	304	15 to 1	9375	0.12	70	4017	0.02	66.2	23.82	29.02	18.19	558	7.2	4.5
HDG150-I-SF-X3	PDF	450	364	30 to 1	11250	0.21	70	4821	0.04	66.2	23.82	29.02	18.19	639	7.2	4.5
HDG175-I-SF-X3	PDF	525	425	15 to 1	13125	0.35	70	5625	0.07	66.2	26.57	29.02	18.19	699	7.2	4.5
HDG200-I-SF-X2	PDF	400	324	20 to 1	10000	0.52	70	4286	0.1	44.17	29.32	29.02	18.19	526	8	4.8
HDG250-I-SF-X2	PDF	500	405	20 to 1	12500	1.03	70	5358	0.18	44.17	34.82	29.02	18.19	666	8	4.8
HDG300-I-SF-X2	PDF	600	486	20 to 1	15000	1.78	70	6428	0.32	44.17	40.32	29.02	18.19	782	8	4.8
HDG350-I-SF-X2	PDF	700	567	20 to 1	17500	2.87	70	7500	0.55	44.17	45.82	29.02	18.19	886	8	4.8
HDG400-I-SF-X2	PDF	800	648	20 to 1	20000	4.14	70	8572	0.73	44.17	48.57	29.02	18.19	920	8	4.8
HDG200-I-SF-X3	PDF	600	486	30 to 1	15000	0.52	70	6429	0.1	66.2	29.32	29.02	18.19	789	12	7.2
HDG250-I-SF-X3	PDF	750	608	30 to 1	18750	1.03	70	8037	0.18	66.2	34.82	29.02	18.19	999	12	7.2
HDG300-I-SF-X3	PDF	900	729	30 to 1	22500	1.78	70	9642	0.32	66.2	40.32	29.02	18.19	1173	12	7.2
HDG350-I-SF-X3	PDF	1050	850	30 to 1	26250	2.87	70	11250	0.55	66.2	45.82	29.02	18.19	1329	12	7.2
HDG400-I-SF-X3	PDF	1200	972	30 to 1	30000	4.14	70	12858	0.73	66.2	48.57	29.02	18.19	1380	12	7.2

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 230V
HDG050-I-ST	PDF	50	41	5 to 1	1250	0.01	70	536	0.002	22.14	26.82	29.02	18.19	104	2.4	1.5
HDG075-I-ST	PDF	75	61	5 to 1	1875	0.03	70	804	0.005	22.14	26.82	29.02	18.19	104	2.4	1.5
HDG100-I-ST	PDF	100	81	10 to 1	2500	0.06	70	1071	0.01	22.14	26.82	29.02	18.19	147	2.4	1.5
HDG125-I-ST	PDF	125	101	5 to 1	3125	0.12	70	1339	0.02	22.14	26.82	29.02	18.19	186	2.4	1.5
HDG150-I-ST	PDF	150	122	10 to 1	3750	0.21	70	1607	0.04	22.14	26.82	29.02	18.19	213	2.4	1.5
HDG175-I-ST	PDF	175	142	5 to 1	4375	0.35	70	1875	0.07	22.14	26.57	29.02	18.19	233	2.4	1.5
HDG200-I-ST	PDF	200	162	10 to 1	5000	0.52	70	2143	0.1	22.14	29.32	29.02	18.19	263	4	2.4
HDG250-I-ST	PDF	250	203	10 to 1	6250	1.03	70	2679	0.18	22.14	34.82	29.02	18.19	333	4	2.4
HDG300-I-ST	PDF	300	243	10 to 1	7500	1.78	70	3214	0.32	22.14	40.32	29.02	18.19	391	4	2.4
HDG350-I-ST	PDF	350	284	10 to 1	8750	2.87	70	3750	0.55	22.14	45.82	29.02	18.19	443	4	2.4
HDG400-I-ST	PDF	400	324	10 to 1	10000	4.14	70	4286	0.73	22.14	48.57	29.02	18.19	460	4	2.4
HDG050-I-ST-X2	PDF	100	81	10 to 1	2500	0.01	70	1072	0.002	44.17	23.82	29.02	18.19	208	4.8	3
HDG075-I-ST-X2	PDF	150	122	10 to 1	3750	0.03	70	1608	0.005	44.17	23.82	29.02	18.19	208	4.8	3
HDG100-I-ST-X2	PDF	200	162	20 to 1	5000	0.06	70	2142	0.01	44.17	23.82	29.02	18.19	294	4.8	3
HDG125-I-ST-X2	PDF	250	202	10 to 1	6250	0.12	70	2678	0.02	44.17	23.82	29.02	18.19	372	4.8	3
HDG150-I-ST-X2	PDF	300	243	20 to 1	7500	0.21	70	3214	0.04	44.17	23.82	29.02	18.19	426	4.8	3
HDG175-I-ST-X2	PDF	350	284	10 to 1	8750	0.35	70	3750	0.07	44.17	26.57	29.02	18.19	466	4.8	3
HDG050-I-ST-X3	PDF	150	122	15 to 1	3750	0.01	70	1608	0.002	66.2	23.82	29.02	18.19	312	7.2	4.5
HDG075-I-ST-X3	PDF	225	182	15 to 1	5625	0.03	70	2412	0.005	66.2	23.82	29.02	18.19	312	7.2	4.5
HDG100-I-ST-X3	PDF	300	243	30 to 1	7500	0.06	70	3213	0.01	66.2	23.82	29.02	18.19	441	7.2	4.5
HDG125-I-ST-X3	PDF	375	304	15 to 1	9375	0.12	70	4017	0.02	66.2	23.82	29.02	18.19	558	7.2	4.5
HDG150-I-ST-X3	PDF	450	364	30 to 1	11250	0.21	70	4821	0.04	66.2	23.82	29.02	18.19	639	7.2	4.5
HDG175-I-ST-X3	PDF	525	425	15 to 1	13125	0.35	70	5625	0.07	66.2	26.57	29.02	18.19	699	7.2	4.5
HDG200-I-ST-X2	PDF	400	324	20 to 1	10000	0.52	70	4286	0.1	44.17	29.32	29.02	18.19	526	8	4.8
HDG250-I-ST-X2	PDF	500	405	20 to 1	12500	1.03	70	5358	0.18	44.17	34.82	29.02	18.19	666	8	4.8
HDG300-I-ST-X2	PDF	600	486	20 to 1	15000	1.78	70	6428	0.32	44.17	40.32	29.02	18.19	782	8	4.8
HDG350-I-ST-X2	PDF	700	567	20 to 1	17500	2.87	70	7500	0.55	44.17	45.82	29.02	18.19	886	8	4.8
HDG400-I-ST-X2	PDF	800	648	20 to 1	20000	4.14	70	8572	0.73	44.17	48.57	29.02	18.19	920	8	4.8
HDG200-I-ST-X3	PDF	600	486	30 to 1	15000	0.52	70	6429	0.1	66.2	29.32	29.02	18.19	789	12	7.2
HDG250-I-ST-X3	PDF	750	608	30 to 1	18750	1.03	70	8037	0.18	66.2	34.82	29.02	18.19	999	12	7.2
HDG300-I-ST-X3	PDF	900	729	30 to 1	22500	1.78	70	9642	0.32	66.2	40.32	29.02	18.19	1173	12	7.2
HDG350-I-ST-X3	PDF	1050	850	30 to 1	26250	2.87	70	11250	0.55	66.2	45.82	29.02	18.19	1329	12	7.2
HDG400-I-ST-X3	PDF	1200	972	30 to 1	30000	4.14	70	12858	0.73	66.2	48.57	29.02	18.19	1380	12	7.2

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

HD Style S Units

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