HD Style N Units

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

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HDA-B-N – 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-NF	PDF			150	122	10 to 1	3750	0.44	100	1125	0.02	24.04	30.61	45.16	18.19	244	4	2.5
HDA200-B-NF	PDF			200	162	10 to 1	5000	0.78	100	1500	0.06	24.04	30.61	45.16	18.19	244	4	2.5
HDA250-B-NF	PDF			250	202	5 to 1	6250	0.79	100	1875	0.07	27.29	30.61	45.16	18.19	268	4	2.5
HDA250-B-NF (6)	PDF			250	202	10 to 1	6250	0.56	100	1875	0.05	30.54	30.61	45.16	18.19	564	4	2.5
HDA300-B-NF	PDF			300	243	10 to 1	7500	0.8	100	2250	0.07	30.54	30.61	45.16	18.19	278	4	2.5
HDA350-B-NF	PDF			350	284	5 to 1	8750	0.81	100	2625	0.08	33.79	30.61	45.16	18.19	389	4	2.5
HDA350-B-NF (8)	PDF			350	284	10 to 1	8750	0.67	100	2625	0.06	37.04	30.61	45.16	18.19	668	4	2.5
HDA400-B-NF	PDF			400	324	10 to 1	10000	0.88	100	3000	0.08	37.04	30.61	45.16	18.19	439	4	2.5
HDA500-B-NF	PDF			500	405	10 to 1	12500	0.96	100	3750	0.09	43.54	30.61	45.16	18.19	480	5	N/a
HDA600-B-NF	PDF			600	486	10 to 1	15000	1.02	100	4500	0.1	50.04	30.61	45.16	18.19	522	5	N/a
HDA150-B-NF-X2	PDF			300	243	10 to 1	3750	0.87	200	1125	0.03	24.04	61.1	45.16	18.19	488	8	5
HDA200-B-NF-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-NF-X2	PDF			500	405	10 to 1	6250	1.57	200	1875	0.13	27.29	61.1	45.16	18.19	278	8	5
HDA250-B-NF-X2 (6)	PDF			500	405	20 to 1	6250	1.11	200	1875	0.11	30.54	61.1	45.16	18.19	585	8	5
HDA300-B-NF-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-NF-X2	PDF			700	567	10 to 1	8750	1.61	200	2625	0.15	33.79	61.1	45.16	18.19	439	8	5
HDA350-B-NF-X2 (8)	PDF			700	567	20 to 1	8750	1.34	200	2625	0.12	37.04	61.1	45.16	18.19	923	8	5
HDA400-B-NF-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-NF-X2	PDF			1000	810	20 to 1	12500	1.91	200	3750	0.18	43.54	61.1	45.16	18.19	1011	10	N/a
HDA600-B-NF-X2	PDF			1200	972	20 to 1	15000	2.05	200	4500	0.19	47.04	61.1	45.16	18.19	1086	10	N/a

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

Model Number	PDF			Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDA150-B-NT	PDF			150	122	10 to 1	3750	0.87	100	1125	0.03	24.04	30.61	45.16	18.19	244	4	2.5
HDA200-B-NT	PDF			200	162	10 to 1	5000	1.55	100	1500	0.12	24.04	30.61	45.16	18.19	244	4	2.5
HDA250-B-NT	PDF			250	202	5 to 1	6250	0.79	100	1875	0.07	27.29	30.61	45.16	18.19	268	4	2.5
HDA250-B-NT (6)	PDF			250	202	10 to 1	6250	0.56	100	1875	0.05	30.54	30.61	45.16	18.19	564	4	2.5
HDA300-B-NT	PDF			300	243	10 to 1	7500	0.8	100	2250	0.07	30.54	30.61	45.16	18.19	278	4	2.5
HDA350-B-NT	PDF			350	284	5 to 1	8750	0.81	100	2625	0.08	33.79	30.61	45.16	18.19	389	4	2.5
HDA350-B-NT (8)	PDF			350	284	10 to 1	8750	0.67	100	2625	0.06	37.04	30.61	45.16	18.19	668	4	2.5
HDA400-B-NT	PDF			400	324	10 to 1	10000	1.75	200	3000	0.16	37.04	30.61	45.16	18.19	439	4	2.5
HDA500-B-NT	PDF			500	405	10 to 1	12500	1.91	200	3750	0.18	43.54	30.61	45.16	18.19	480	5	N/a
HDA600-B-NT	PDF			600	486	10 to 1	15000	2.05	200	4500	0.19	50.04	30.61	45.16	18.19	522	5	N/a
HDA150-B-NT-X2	PDF			300	243	10 to 1	3750	0.87	200	1125	0.03	24.04	61.1	45.16	18.19	488	8	5
HDA200-B-NT-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-NT-X2	PDF			500	405	10 to 1	6250	1.57	200	1875	0.13	27.29	61.1	45.16	18.19	278	8	5
HDA250-B-NT-X2 (6)	PDF			500	405	20 to 1	6250	1.11	200	1875	0.11	30.54	61.1	45.16	18.19	585	8	5
HDA300-B-NT-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-NT-X2	PDF			700	567	10 to 1	8750	1.61	200	2625	0.15	33.79	61.1	45.16	18.19	439	8	5
HDA350-B-NT-X2 (8)	PDF			700	567	20 to 1	8750	1.34	200	2625	0.12	37.04	61.1	45.16	18.19	923	8	5
HDA400-B-NT-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-NT-X2	PDF			1000	810	20 to 1	12500	1.91	200	3750	0.18	43.54	61.1	45.16	18.19	1011	10	N/a
HDA600-B-NT-X2	PDF			1200	972	20 to 1	15000	2.05	200	4500	0.19	47.04	61.1	45.16	18.19	1086	10	N/a

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

HDA-F-N – 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-NF	PDF			150	122	10 to 1	3750	0.44	100	1125	0.02	21.23	44.42	45.16	18.19	244	4	2.5
HDA200-F-NF	PDF			200	162	10 to 1	5000	0.78	100	1500	0.06	21.23	44.42	45.16	18.19	232	4	2.5
HDA250-F-NF	PDF			250	202	5 to 1	6250	0.79	100	1875	0.07	24.48	44.42	45.16	18.19	268	4	2.5
HDA250-F-NF (6)	PDF			250	202	10 to 1	6250	0.56	100	1875	0.05	27.73	44.42	45.16	18.19	278	4	2.5
HDA300-F-NF	PDF			300	243	10 to 1	7500	0.8	100	2250	0.07	27.73	44.42	45.16	18.19	278	4	2.5
HDA350-F-NF	PDF			350	284	5 to 1	8750	0.81	100	2625	0.08	30.98	44.42	45.16	18.19	389	4	2.5
HDA350-F-NF (8)	PDF			350	284	10 to 1	8750	0.67	100	2625	0.06	34.23	44.42	45.16	18.19	439	4	2.5
HDA400-F-NF	PDF			400	324	10 to 1	10000	0.88	100	3000	0.08	34.23	44.42	45.16	18.19	439	4	2.5
HDA500-F-NF	PDF			500	405	10 to 1	12500	0.96	100	3750	0.09	40.73	44.42	45.16	18.19	480	5	N/a
HDA600-F-NF	PDF			600	486	10 to 1	15000	1.02	100	4500	0.1	47.23	44.42	45.16	18.19	522	5	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-NT	PDF			150	122	10 to 1	3750	0.44	100	1125	0.02	21.23	33.42	45.16	18.19	244	4	2.5
HDA200-F-NT	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-NT	PDF			250	202	5 to 1	6250	0.79	100	1875	0.07	24.48	33.42	45.16	18.19	268	4	2.5
HDA250-F-NT (6)	PDF			250	202	10 to 1	6250	0.56	100	1875	0.05	27.73	33.42	45.16	18.19	278	4	2.5
HDA300-F-NT	PDF			300	243	10 to 1	7500	0.8	100	2250	0.07	27.73	33.42	45.16	18.19	278	4	2.5
HDA350-F-NT	PDF			350	284	5 to 1	8750	0.81	100	2625	0.08	30.98	33.42	45.16	18.19	389	4	2.5
HDA350-F-NT (8)	PDF			350	284	10 to 1	8750	0.67	100	2625	0.06	34.23	33.42	45.16	18.19	439	4	2.5
HDA400-F-NT	PDF			400	324	10 to 1	10000	0.88	100	3000	0.08	34.23	33.42	45.16	18.19	439	4	2.5
HDA500-F-NT	PDF			500	405	10 to 1	12500	0.96	100	3750	0.09	40.73	33.42	45.16	18.19	480	5	N/a
HDA600-F-NT	PDF			600	486	10 to 1	15000	1.02	100	4500	0.1	47.23	33.42	45.16	18.19	522	5	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-N – 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-NF	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-NF	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-NF	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-NF (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-NF	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-NF	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-NF (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-NF	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-NF	PDF			500	405	10 to 1	12500	0.65	80	4688	0.1	44.42	40.73	45.16	18.18	480	5	N/a
HDA600-M-NF	PDF			600	486	10 to 1	15000	1.18	80	5625	0.17	44.42	47.23	45.16	18.18	522	5	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-M-NT	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-NT	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-NT	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-NT (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-NT	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-NT	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-NT (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-NT	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-NT	PDF			500	405	10 to 1	12500	0.65	80	4688	0.1	33.42	40.73	45.16	18.18	480	5	N/a
HDA600-M-NT	PDF			600	486	10 to 1	15000	1.18	80	5625	0.17	33.42	47.23	45.16	18.18	522	5	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-I-N – 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-NT	PDF			150	122	10 to 1	3750	0.02	80	1406	0.004	30.61	21.04	45.16	18.19	244	4	2.5
HDA200-I-NT	PDF			200	162	10 to 1	5000	0.04	80	1875	0.006	30.61	21.04	45.16	18.19	244	4	2.5
HDA250-I-NT	PDF			250	202	5 to 1	6250	0.08	80	2344	0.01	30.61	27.29	45.16	18.19	268	4	2.5
HDA250-I-NT (6)	PDF			250	202	10 to 1	6250	0.1	80	2344	0.01	30.61	30.54	45.16	18.19	278	4	2.5
HDA300-I-NT	PDF			300	243	10 to 1	7500	0.14	80	2813	0.02	30.61	30.54	45.16	18.19	278	4	2.5
HDA350-I-NT	PDF			350	284	5 to 1	8750	0.22	80	3281	0.03	30.61	33.79	45.16	18.19	389	4	2.5
HDA350-I-NT (8)	PDF			350	284	10 to 1	8750	0.27	80	3281	0.04	30.61	37.04	45.16	18.19	439	4	2.5
HDA400-I-NT	PDF			400	324	10 to 1	10000	0.35	80	3750	0.05	30.61	37.04	45.16	18.19	439	4	2.5
HDA500-I-NT	PDF			500	405	10 to 1	12500	0.65	80	4688	0.1	30.61	43.54	45.16	18.19	480	5	N/a
HDA600-I-NT	PDF			600	486	10 to 1	15000	1.18	80	5625	0.17	30.61	50.04	45.16	18.19	522	5	N/a

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
HDA150-I-NF	PDF			150	122	10 to 1	3750	0.02	80	1406	0.004	30.61	21.04	45.16	18.19	244	4	2.5
HDA200-I-NF	PDF			200	162	10 to 1	5000	0.04	80	1875	0.006	30.61	21.04	45.16	18.19	244	4	2.5
HDA250-I-NF	PDF			250	202	5 to 1	6250	0.08	80	2344	0.01	30.61	24.29	45.16	18.19	268	4	2.5
HDA250-I-NF (6)	PDF			250	202	10 to 1	6250	0.1	80	2344	0.01	30.61	27.54	45.16	18.19	278	4	2.5
HDA300-I-NF	PDF			300	243	10 to 1	7500	0.14	80	2813	0.02	30.61	27.54	45.16	18.19	278	4	2.5
HDA350-I-NF	PDF			350	284	5 to 1	8750	0.22	80	3281	0.03	30.61	30.79	45.16	18.19	389	4	2.5
HDA350-I-NF (8)	PDF			350	284	10 to 1	8750	0.27	80	3281	0.04	30.61	34.04	45.16	18.19	439	4	2.5
HDA400-I-NF	PDF			400	324	10 to 1	10000	0.35	80	3750	0.05	30.61	34.04	45.16	18.19	439	4	2.5
HDA500-I-NF	PDF			500	405	10 to 1	12500	0.65	80	4688	0.1	30.61	40.54	45.16	18.19	480	5	N/a
HDA600-I-NF	PDF			600	486	10 to 1	15000	1.18	80	5625	0.17	30.61	47.04	45.16	18.19	522	5	N/a

Notes:
- Max Discharge Temp is 160°F
- 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
HDB180-B-NT	PDF			180	146	10 to 1	4500	0.11	90	1500	0.01	28.94	21.78	79.86	18.19	174	4	2.5
HDB200-B-NT	PDF			200	162	10 to 1	5000	0.13	90	1667	0.02	28.94	21.78	79.86	18.19	174	4	2.5
HDB225-B-NT	PDF			225	182	5 to 1	5625	0.16	90	1875	0.02	28.94	21.78	79.86	18.19	174	4	2.5
HDB250-B-NT	PDF			250	202	5 to 1	6250	0.15	90	2083	0.02	28.94	21.78	79.86	18.19	216	4	2.5
HDB270-B-NT	PDF			270	219	10 to 1	6750	0.13	90	2250	0.02	28.94	21.78	79.86	18.19	279	4	2.5
HDB300-B-NT	PDF			300	243	10 to 1	7500	0.16	90	2500	0.02	28.94	21.78	79.86	18.19	279	4	2.5
HDB315-B-NT	PDF			315	255	5 to 1	7875	0.15	90	2625	0.02	32.19	21.78	79.86	18.19	279	4	2.5
HDB350-B-NT	PDF			350	284	5 to 1	8750	0.18	90	2917	0.02	32.19	21.78	79.86	18.19	342	4	2.5
HDB360-B-NT	PDF			360	292	10 to 1	9000	0.16	90	3000	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB375-B-NT	PDF			375	304	10 to 1	9375	0.18	90	3125	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB400-B-NT	PDF			400	324	10 to 1	10000	0.2	90	3333	0.02	35.44	21.78	79.86	18.19	405	4	2.5
HDB500-B-NT	PDF			500	405	10 to 1	12500	0.21	90	4167	0.02	41.94	24.28	79.86	18.19	484	5
HDB600-B-NT	PDF			600	486	10 to 1	15000	0.23	90	5000	0.03	48.44	24.28	79.86	18.19	516	5

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

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

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

HDB-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
HDB180-F-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	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-NF	PDF			600	486	10 to 1	15000	0.23	90	5000	0.03	48.65	32.69	78.87	18.19	516	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
HDB180-F-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	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-NT	PDF			600	486	10 to 1	15000	0.23	90	5000	0.03	48.65	24.07	78.87	18.19	516	5

Notes:
- Max Discharge Temp is 160°F
- 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-NT	PDF			50	40	5 to 1	1250	0.12	90	417	0.01	23.82	22.14	29.03	18.19	76	2	1.5
HDG075-B-NT	PDF			75	61	5 to 1	1875	0.26	90	625	0.03	23.82	22.14	29.03	18.19	76	2	1.5
HDG100-B-NT	PDF			100	81	5 to 1	2500	0.34	90	833	0.04	23.82	22.14	29.03	18.19	110	2	1.5
HDG125-B-NT	PDF			125	101	5 to 1	3125	0.39	90	1042	0.05	23.82	22.14	29.03	18.19	140	2	1.5
HDG150-B-NT	PDF			150	122	10 to 1	3750	0.47	90	1250	0.05	23.82	22.14	29.03	18.19	157	2	1.5
HDG175-B-NT	PDF			175	142	5 to 1	4375	0.51	90	1458	0.06	26.57	22.14	29.03	18.19	168	2	1.5
HDG200-B-NT	PDF			200	162	10 to 1	5000	0.53	90	1667	0.06	29.32	22.14	29.03	18.19	188	4	2.5
HDG250-B-NT	PDF			250	202	10 to 1	6250	0.58	90	2083	0.07	34.82	22.14	29.03	18.19	240	4	2.5
HDG300-B-NT	PDF			300	243	10 to 1	7500	0.66	90	2500	0.08	40.32	22.14	29.03	18.19	279	4	2.5
HDG350-B-NT	PDF			350	284	10 to 1	8750	0.74	90	2917	0.08	45.82	22.14	29.03	18.19	312	4	2.5
HDG400-B-NT	PDF			400	324	10 to 1	10000	0.8	90	3333	0.09	45.82	22.14	29.03	18.19	320	4	2.5
HDG500-B-NT	PDF			500	405	10 to 1	12500	0.93	90	4167	0.1	56.82	22.14	29.03	18.19	N/a	5	3.2
HDG600-B-NT	PDF			600	486	10 to 1	15000	0.9	90	5000	0.1	67.82	22.14	29.03	18.19	N/a	5	3.2

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

Model Number	PDF			Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HDG050-B-NF	PDF			50	40	5 to 1	1250	0.12	90	417	0.01	22.14	23.82	29.03	18.19	76	2	1.5
HDG075-B-NF	PDF			75	61	5 to 1	1875	0.26	90	625	0.03	22.14	23.82	29.03	18.19	76	2	1.5
HDG100-B-NF	PDF			100	81	5 to 1	2500	0.34	90	833	0.04	22.14	23.82	29.03	18.19	110	2	1.5
HDG125-B-NF	PDF			125	101	5 to 1	3125	0.39	90	1042	0.05	22.14	23.82	29.03	18.19	140	2	1.5
HDG150-B-NF	PDF			150	122	10 to 1	3750	0.47	90	1250	0.05	22.14	23.82	29.03	18.19	157	2	1.5
HDG175-B-NF	PDF			175	142	5 to 1	4375	0.51	90	1458	0.06	22.14	26.57	29.03	18.19	168	2	1.5
HDG200-B-NF	PDF			200	162	10 to 1	5000	0.53	90	1667	0.06	22.14	29.32	29.03	18.19	188	4	2.5
HDG250-B-NF	PDF			250	202	10 to 1	6250	0.58	90	2083	0.07	22.14	34.82	29.03	18.19	240	4	2.5
HDG300-B-NF	PDF			300	243	10 to 1	7500	0.66	90	2500	0.08	22.14	40.32	29.03	18.19	279	4	2.5
HDG350-B-NF	PDF			350	284	10 to 1	8750	0.74	90	2917	0.08	22.14	45.82	29.03	18.19	312	4	2.5
HDG400-B-NF	PDF			400	324	10 to 1	10000	0.8	90	3333	0.09	22.14	45.82	29.03	18.19	320	4	2.5
HDG500-B-NF	PDF			500	405	10 to 1	12500	0.93	90	4167	0.1	22.14	56.82	29.03	18.19	N/a	5	3.2
HDG600-B-NF	PDF			600	486	10 to 1	15000	0.9	90	5000	0.1	22.14	67.82	29.03	18.19	N/a	5	3.2

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-NF	PDF			50	40	5 to 1	1250	0.12	90	417	0.01	15.75	32.96	29.03	18.19	76	2	1.5
HDG075-F-NF	PDF			75	61	5 to 1	1875	0.26	90	625	0.03	15.75	32.96	29.03	18.19	76	2	1.5
HDG100-F-NF	PDF			100	81	5 to 1	2500	0.34	90	833	0.04	18.5	32.96	29.03	18.19	110	2	1.5
HDG125-F-NF	PDF			125	101	5 to 1	3125	0.39	90	1042	0.05	21.25	32.96	29.03	18.19	140	2	1.5
HDG150-F-NF	PDF			150	122	10 to 1	3750	0.47	90	1250	0.05	24	32.96	29.03	18.19	157	2	1.5
HDG175-F-NF	PDF			175	142	5 to 1	4375	0.51	90	1458	0.06	26.75	32.96	29.03	18.19	168	2	1.5
HDG200-F-NF	PDF			200	162	10 to 1	5000	0.53	90	1667	0.06	29.5	32.96	29.03	18.19	188	4	2.5
HDG250-F-NF	PDF			250	202	10 to 1	6250	0.58	90	2083	0.07	35	32.96	29.03	18.19	240	4	2.5
HDG300-F-NF	PDF			300	243	10 to 1	7500	0.66	90	2500	0.08	40.5	32.96	29.03	18.19	279	4	2.5
HDG350-F-NF	PDF			350	284	10 to 1	8750	0.74	90	2917	0.08	46	32.96	29.03	18.19	312	4	2.5
HDG400-F-NF	PDF			400	324	10 to 1	10000	0.8	90	3333	0.09	48.75	32.96	29.03	18.19	320	4	2.5
HDG500-F-NF	PDF			500	405	10 to 1	12500	0.93	90	4167	0.1	57	32.96	29.03	18.19	N/a	5	3.2
HDG600-F-NF	PDF			600	486	10 to 1	15000	0.9	90	5000	0.1	68	32.96	29.03	18.19	N/a	5	3.2

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-NT	PDF			50	40	5 to 1	1250	0.12	90	417	0.01	15.75	24.96	29.03	18.19	76	2	1.5
HDG075-F-NT	PDF			75	61	5 to 1	1875	0.26	90	625	0.03	15.75	24.96	29.03	18.19	76	2	1.5
HDG100-F-NT	PDF			100	81	5 to 1	2500	0.34	90	833	0.04	18.5	24.96	29.03	18.19	110	2	1.5
HDG125-F-NT	PDF			125	101	5 to 1	3125	0.39	90	1042	0.05	21.25	24.96	29.03	18.19	140	2	1.5
HDG150-F-NT	PDF			150	122	10 to 1	3750	0.47	90	1250	0.05	24	24.96	29.03	18.19	157	2	1.5
HDG175-F-NT	PDF			175	142	5 to 1	4375	0.51	90	1458	0.06	26.75	24.96	29.03	18.19	168	2	1.5
HDG200-F-NT	PDF			200	162	10 to 1	5000	0.53	90	1667	0.06	29.5	24.96	29.03	18.19	188	4	2.5
HDG250-F-NT	PDF			250	202	10 to 1	6250	0.58	90	2083	0.07	35	24.96	29.03	18.19	240	4	2.5
HDG300-F-NT	PDF			300	243	10 to 1	7500	0.66	90	2500	0.08	40.5	24.96	29.03	18.19	279	4	2.5
HDG350-F-NT	PDF			350	284	10 to 1	8750	0.74	90	2917	0.08	46	24.96	29.03	18.19	312	4	2.5
HDG400-F-NT	PDF			400	324	10 to 1	10000	0.8	90	3333	0.09	48.75	24.96	29.03	18.19	320	4	2.5
HDG500-F-NT	PDF			500	405	10 to 1	12500	0.93	90	4167	0.1	57	24.96	29.03	18.19	N/a	5	3.2
HDG600-F-NT	PDF			600	486	10 to 1	15000	0.9	90	5000	0.1	68	24.96	29.03	18.19	N/a	5	3.2

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-NF	PDF			50	41	5 to 1	1250	0.01	70	536	0.002	21.96	15.75	29.03	18.19	104	2	1.5
HDG075-M-NF	PDF			75	61	5 to 1	1875	0.03	70	804	0.005	21.96	15.75	29.03	18.19	104	2	1.5
HDG100-M-NF	PDF			100	81	10 to 1	2500	0.06	70	1071	0.01	21.96	18.5	29.03	18.19	147	2	1.5
HDG125-M-NF	PDF			125	101	5 to 1	3125	0.12	70	1339	0.02	21.96	21.25	29.03	18.19	186	2	1.5
HDG150-M-NF	PDF			150	122	10 to 1	3750	0.21	70	1607	0.04	21.96	24	29.03	18.19	213	2	1.5
HDG175-M-NF	PDF			175	142	5 to 1	4375	0.35	70	1875	0.07	21.96	26.75	29.03	18.19	233	2	1.5
HDG200-M-NF	PDF			200	162	10 to 1	5000	0.52	70	2143	0.1	21.96	29.5	29.03	18.19	263	4	2.5
HDG250-M-NF	PDF			250	203	10 to 1	6250	1.03	70	2679	0.18	21.96	35	29.03	18.19	333	4	2.5
HDG300-M-NF	PDF			300	243	10 to 1	7500	1.78	70	3214	0.32	21.96	40.5	29.03	18.19	391	4	2.5
HDG350-M-NF	PDF			350	284	10 to 1	8750	2.87	70	3750	0.55	21.96	46	29.03	18.19	443	4	2.5
HDG400-M-NF	PDF			400	324	10 to 1	10000	4.14	70	4286	0.73	21.96	48.75	29.03	18.19	460	4	2.5

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-NT	PDF			50	41	5 to 1	1250	0.01	70	536	0.002	21.96	15.75	29.03	18.19	104	2	1.5
HDG075-M-NT	PDF			75	61	5 to 1	1875	0.03	70	804	0.005	21.96	15.75	29.03	18.19	104	2	1.5
HDG100-M-NT	PDF			100	81	10 to 1	2500	0.06	70	1071	0.01	21.96	18.5	29.03	18.19	147	2	1.5
HDG125-M-NT	PDF			125	101	5 to 1	3125	0.12	70	1339	0.02	21.96	21.25	29.03	18.19	186	2	1.5
HDG150-M-NT	PDF			150	122	10 to 1	3750	0.21	70	1607	0.04	21.96	24	29.03	18.19	213	2	1.5
HDG175-M-NT	PDF			175	142	5 to 1	4375	0.35	70	1875	0.07	21.96	26.75	29.03	18.19	233	2	1.5
HDG200-M-NT	PDF			200	162	10 to 1	5000	0.52	70	2143	0.1	21.96	29.5	29.03	18.19	263	4	2.5
HDG250-M-NT	PDF			250	203	10 to 1	6250	1.03	70	2679	0.18	21.96	35	29.03	18.19	333	4	2.5
HDG300-M-NT	PDF			300	243	10 to 1	7500	1.78	70	3214	0.32	21.96	40.5	29.03	18.19	391	4	2.5
HDG350-M-NT	PDF			350	284	10 to 1	8750	2.87	70	3750	0.55	21.96	46	29.03	18.19	443	4	2.5
HDG400-M-NT	PDF			400	324	10 to 1	10000	4.14	70	4286	0.73	21.96	48.75	29.03	18.19	460	4	2.5

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-NF	PDF			50	41	5 to 1	1250	0.01	70	536	0.002	22.14	23.82	29.02	18.19	104	2	1.5
HDG075-I-NF	PDF			75	61	5 to 1	1875	0.03	70	804	0.005	22.14	23.82	29.02	18.19	104	2	1.5
HDG100-I-NF	PDF			100	81	10 to 1	2500	0.06	70	1071	0.01	22.14	23.82	29.02	18.19	147	2	1.5
HDG125-I-NF	PDF			125	101	5 to 1	3125	0.12	70	1339	0.02	22.14	23.82	29.02	18.19	186	2	1.5
HDG150-I-NF	PDF			150	122	10 to 1	3750	0.21	70	1607	0.04	22.14	23.82	29.02	18.19	213	2	1.5
HDG175-I-NF	PDF			175	142	5 to 1	4375	0.35	70	1875	0.07	22.14	26.57	29.02	18.19	233	2	1.5
HDG200-I-NF	PDF			200	162	10 to 1	5000	0.52	70	2143	0.1	22.14	29.32	29.02	18.19	263	4	2.5
HDG250-I-NF	PDF			250	203	10 to 1	6250	1.03	70	2679	0.18	22.14	34.82	29.02	18.19	333	4	2.5
HDG300-I-NF	PDF			300	243	10 to 1	7500	1.78	70	3214	0.32	22.14	40.32	29.02	18.19	391	4	2.5
HDG350-I-NF	PDF			350	284	10 to 1	8750	2.87	70	3750	0.55	22.14	45.82	29.02	18.19	443	4	2.5
HDG400-I-NF	PDF			400	324	10 to 1	10000	4.14	70	4286	0.73	22.14	48.57	29.02	18.19	460	4	2.5

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-NT	PDF			50	41	5 to 1	1250	0.01	70	536	0.002	22.14	23.82	29.02	18.19	104	2	1.5
HDG075-I-NT	PDF			75	61	5 to 1	1875	0.03	70	804	0.005	22.14	23.82	29.02	18.19	104	2	1.5
HDG100-I-NT	PDF			100	81	10 to 1	2500	0.06	70	1071	0.01	22.14	23.82	29.02	18.19	147	2	1.5
HDG125-I-NT	PDF			125	101	5 to 1	3125	0.12	70	1339	0.02	22.14	23.82	29.02	18.19	186	2	1.5
HDG150-I-NT	PDF			150	122	10 to 1	3750	0.21	70	1607	0.04	22.14	23.82	29.02	18.19	213	2	1.5
HDG175-I-NT	PDF			175	142	5 to 1	4375	0.35	70	1875	0.07	22.14	26.57	29.02	18.19	233	2	1.5
HDG200-I-NT	PDF			200	162	10 to 1	5000	0.52	70	2143	0.1	22.14	29.32	29.02	18.19	263	4	2.5
HDG250-I-NT	PDF			250	203	10 to 1	6250	1.03	70	2679	0.18	22.14	34.82	29.02	18.19	333	4	2.5
HDG300-I-NT	PDF			300	243	10 to 1	7500	1.78	70	3214	0.32	22.14	40.32	29.02	18.19	391	4	2.5
HDG350-I-NT	PDF			350	284	10 to 1	8750	2.87	70	3750	0.55	22.14	45.82	29.02	18.19	443	4	2.5
HDG400-I-NT	PDF			400	324	10 to 1	10000	4.14	70	4286	0.73	22.14	48.57	29.02	18.19	460	4	2.5

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