HMB Units | Heatco

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81%80%

Configurations with 30-90°F Temp Rise

Application Guidelines Product Specification User Guidelines OEM Instructions Submittal / Order Information

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HMB180 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	180	146	10:1/6:1 Mod (WB) (NA/LP)	4500	0.11	90	1500	0.01	20.37	19.5	75.72	14	97	4	2.5
HMB180 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	180	146	5:1/3:1 Mod (WA) (NA/LP)	4500	0.11	90	1500	0.01	20.37	19.5	75.72	14	97	4	2.5
HMB180 - One Stage (SN)	A B C D E F G P Q	180	146	1 to 1	4500	0.11	90	1500	0.01	20.37	19.5	75.72	14	97	4	2.5
HMB180 - Two Stage (TN)	A B C D E F G P Q	180	146	2 to 1	4500	0.11	90	1500	0.01	20.37	19.5	75.72	14	97	4	2.5
HMB180 - Two Stage (TS)	A B C D E F G P Q	180	146	2 to 1	4500	0.11	90	1500	0.01	20.37	19.5	75.72	14	97	4	2.5
HMB200 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	200	162	10:1/6:1 Mod (WB) (NA/LP)	5000	0.13	90	1667	0.02	20.37	19.5	75.72	14	97	4	2.5
HMB200 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	200	162	5:1/3:1 Mod (WA) (NA/LP)	5000	0.13	90	1667	0.02	20.37	19.5	75.72	14	97	4	2.5
HMB200 - One Stage (SN)	A B C D E F G P Q	200	162	1 to 1	5000	0.13	90	1667	0.02	20.37	19.5	75.72	14	97	4	2.5
HMB200 - Two Stage (TN)	A B C D E F G P Q	200	162	2 to 1	5000	0.13	90	1667	0.02	20.37	19.5	75.72	14	97	4	2.5
HMB200 - Two Stage (TS)	A B C D E F G P Q	200	162	2 to 1	5000	0.13	90	1667	0.02	20.37	19.5	75.72	14	97	4	2.5
HMB225 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	225	182	5:1/3:1 Mod (WA) (NA/LP)	5625	0.16	90	1875	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB225 - One Stage (SN)	A B C D E F G P Q	225	182	1 to 1	5625	0.16	90	1875	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB225 - Two Stage (TN)	A B C D E F G P Q	225	182	2 to 1	5625	0.16	90	1875	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB225 - Two Stage (TS)	A B C D E F G P Q	225	182	2 to 1	5625	0.16	90	1875	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB250 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	250	202	5:1/3:1 Mod (WA) (NA/LP)	6250	0.15	90	2083	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB250 - One Stage (SN)	A B C D E F G P Q	250	202	1 to 1	6250	0.15	90	2083	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB250 - Two Stage (TN)	A B C D E F G P Q	250	202	2 to 1	6250	0.15	90	2083	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB250 - Two Stage (TS)	A B C D E F G P Q	250	202	2 to 1	6250	0.15	90	2083	0.02	23.62	19.5	75.72	14	116	4	2.5
HMB270 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	270	219	10:1/6:1 Mod (WB) (NA/LP)	6750	0.13	90	2250	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB270 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	270	219	5:1/3:1 Mod (WA) (NA/LP)	6750	0.13	90	2250	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB270 - One Stage (SN)	A B C D E F G P Q	270	219	1 to 1	6750	0.13	90	2250	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB270 - Two Stage (TN)	A B C D E F G P Q	270	219	2 to 1	6750	0.13	90	2250	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB270 - Two Stage (TS)	A B C D E F G P Q	270	219	2 to 1	6750	0.13	90	2250	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB300 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	300	243	10:1/6:1 Mod (WB) (NA/LP)	7500	0.16	90	2500	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB300 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	300	243	5:1/3:1 Mod (WA) (NA/LP)	7500	0.16	90	2500	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB300 - One Stage (SN)	A B C D E F G P Q	300	243	1 to 1	7500	0.16	90	2500	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB300 - Two Stage (TN)	A B C D E F G P Q	300	243	2 to 1	7500	0.16	90	2500	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB300 - Two Stage (TS)	A B C D E F G P Q	300	243	2 to 1	7500	0.16	90	2500	0.02	26.87	19.5	75.72	14	131	4	2.5
HMB315 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	315	255	5:1/3:1 Mod (WA) (NA/LP)	7875	0.15	90	2625	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB315 - One Stage (SN)	A B C D E F G P Q	315	255	1 to 1	7875	0.15	90	2625	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB315 - Two Stage (TN)	A B C D E F G P Q	315	255	2 to 1	7875	0.15	90	2625	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB315 - Two Stage (TS)	A B C D E F G P Q	315	255	2 to 1	7875	0.15	90	2625	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB350 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	350	284	5:1/3:1 Mod (WA) (NA/LP)	8750	0.18	90	2917	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB350 - One Stage (SN)	A B C D E F G P Q	350	284	1 to 1	8750	0.18	90	2917	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB350 - Two Stage (TN)	A B C D E F G P Q	350	284	2 to 1	8750	0.18	90	2917	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB350 - Two Stage (TS)	A B C D E F G P Q	350	284	2 to 1	8750	0.18	90	2917	0.02	30.12	19.5	75.72	14	147	4	2.5
HMB360 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	360	292	10:1/6:1 Mod (WB) (NA/LP)	9000	0.16	90	3000	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB360 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	360	292	5:1/3:1 Mod (WA) (NA/LP)	9000	0.16	90	3000	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB360 - One Stage (SN)	A B C D E F G P Q	360	292	1 to 1	9000	0.16	90	3000	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB360 - Two Stage (TN)	A B C D E F G P Q	360	292	2 to 1	9000	0.16	90	3000	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB360 - Two Stage (TS)	A B C D E F G P Q	360	292	2 to 1	9000	0.16	90	3000	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB375 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	375	304	10:1/6:1 Mod (WB) (NA/LP)	9375	0.18	90	3125	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB375 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	375	304	5:1/3:1 Mod (WA) (NA/LP)	9375	0.18	90	3125	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB375 - One Stage (SN)	A B C D E F G P Q	375	304	1 to 1	9375	0.18	90	3125	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB375 - Two Stage (TN)	A B C D E F G P Q	375	304	2 to 1	9375	0.18	90	3125	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB375 - Two Stage (TS)	A B C D E F G P Q	375	304	2 to 1	9375	0.18	90	3125	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB400 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	400	324	10:1/6:1 Mod (WB) (NA/LP)	10000	0.2	90	3333	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB400 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	400	324	5:1/3:1 Mod (WA) (NA/LP)	10000	0.2	90	3333	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB400 - One Stage (SN)	A B C D E F G P Q	400	324	1 to 1	10000	0.2	90	3333	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB400 - Two Stage (TN)	A B C D E F G P Q	400	324	2 to 1	10000	0.2	90	3333	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB400 - Two Stage (TS)	A B C D E F G P Q	400	324	2 to 1	10000	0.2	90	3333	0.02	33.37	19.5	75.72	14	166	4	2.5
HMB500 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	500	405	10:1/6:1 Mod (WB) (NA/LP)	12500	0.21	90	4167	0.02	39.87	22	75.72	20	235	5
HMB500 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	500	405	5:1/3:1 Mod (WA) (NA/LP)	12500	0.21	90	4167	0.02	39.87	22	75.72	20	235	5
HMB500 - Two Stage (TS)	A B C D E F G P Q	500	405	2 to 1	12500	0.21	90	4167	0.02	39.87	22	75.72	20	235	5
HMB600 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	600	486	10:1/6:1 Mod (WB) (NA/LP)	15000	0.23	90	5000	0.03	46.37	22	75.72	20	255	5
HMB600 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	600	486	5:1/3:1 Mod (WA) (NA/LP)	15000	0.23	90	5000	0.03	46.37	22	75.72	20	255	5
HMB600 - Two Stage (TS)	A B C D E F G P Q	600	486	2 to 1	15000	0.23	90	5000	0.03	46.37	22	75.72	20	255	5

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

Configurations with 20-90°F Temp Rise

Application Guidelines Product Specification User Guidelines OEM Instructions Submittal / Order Information

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

Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HMB180 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	180	144	10:1/6:1 (NA/LP)	6667	0.28	90	1481	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB180 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	180	144	10:1/6:1 Mod (WB) (NA/LP)	6667	0.28	90	1481	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB180 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	180	144	5:1/3:1 Mod (WA) (NA/LP)	6667	0.28	90	1481	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB180 - One Stage	A B C D E F G P Q	180	144	1 to 1	6667	0.28	90	1481	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB180 - Two Stage (TN)	A B C D E F G P Q	180	144	2 to 1	6667	0.28	90	1481	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB180 - Two Stage (TS)	A B C D E F G P Q	180	144	2 to 1	6667	0.28	90	1481	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB200 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	200	160	10:1/6:1 (NA/LP)	7407	0.34	90	1646	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB200 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	200	160	10:1/6:1 Mod (WB) (NA/LP)	7407	0.34	90	1646	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB200 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	200	160	5:1/3:1 Mod (WA) (NA/LP)	7407	0.34	90	1646	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB200 - One Stage	A B C D E F G P Q	200	160	1 to 1	7407	0.34	90	1646	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB200 - Two Stage (TN)	A B C D E F G P Q	200	160	2 to 1	7407	0.34	90	1646	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB200 - Two Stage (TS)	A B C D E F G P Q	200	160	2 to 1	7407	0.34	90	1646	0.02	20.37	17.37	75.25	16	97	4	2.5
HMB250 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	250	200	5:1/3:1 Mod (WA) (NA/LP)	9259	0.39	90	2058	0.02	23.62	17.37	75.25	16	116	4	2.5
HMB250 - One Stage	A B C D E F G P Q	250	200	1 to 1	9259	0.39	90	2058	0.02	23.62	17.37	75.25	16	116	4	2.5
HMB250 - Two Stage (TN)	A B C D E F G P Q	250	200	2 to 1	9259	0.39	90	2058	0.02	23.62	17.37	75.25	16	116	4	2.5
HMB250 - Two Stage (TS)	A B C D E F G P Q	250	200	2 to 1	9259	0.39	90	2058	0.02	23.62	17.37	75.25	16	116	4	2.5
HMB270 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	270	216	10:1/6:1 Mod (WB) (NA/LP)	10000	0.36	90	2222	0.02	26.87	17.37	75.25	16	131	4	2.5
HMB300 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	300	240	10:1/6:1 (NA/LP)	11111	0.44	90	2469	0.03	26.87	17.37	75.25	16	131	4	2.5
HMB300 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	300	240	10:1/6:1 Mod (WB) (NA/LP)	11111	0.44	90	2469	0.03	26.87	17.37	75.25	16	131	4	2.5
HMB300 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	300	240	5:1/3:1 Mod (WA) (NA/LP)	11111	0.44	90	2469	0.03	26.87	17.37	75.25	16	131	4	2.5
HMB300 - One Stage	A B C D E F G P Q	300	240	1 to 1	11111	0.44	90	2469	0.03	26.87	17.37	75.25	16	131	4	2.5
HMB300 - Two Stage (TN)	A B C D E F G P Q	300	240	2 to 1	11111	0.44	90	2469	0.03	26.87	17.37	75.25	16	131	4	2.5
HMB300 - Two Stage (TS)	A B C D E F G P Q	300	240	2 to 1	11111	0.44	90	2469	0.03	26.87	17.37	75.25	16	131	4	2.5
HMB350 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	350	280	10:1/6:1 (NA/LP)	12963	0.48	90	2881	0.03	30.12	17.37	75.25	16	147	4	2.5
HMB350 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	350	280	5:1/3:1 Mod (WA) (NA/LP)	12963	0.48	90	2881	0.03	30.12	17.37	75.25	16	147	4	2.5
HMB350 - One Stage	A B C D E F G P Q	350	280	1 to 1	12963	0.48	90	2881	0.03	30.12	17.37	75.25	16	147	4	2.5
HMB350 - Two Stage (TN)	A B C D E F G P Q	350	280	2 to 1	12963	0.48	90	2881	0.03	30.12	17.37	75.25	16	147	4	2.5
HMB350 - Two Stage (TS)	A B C D E F G P Q	350	280	2 to 1	12963	0.48	90	2881	0.03	30.12	17.37	75.25	16	147	4	2.5
HMB360 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	360	288	10:1/6:1 Mod (WB) (NA/LP)	13333	0.42	90	2963	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB375 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	375	300	10:1/6:1 Mod (WB) (NA/LP)	13889	0.46	90	3086	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB400 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	400	320	10:1/6:1 (NA/LP)	14815	0.52	90	3292	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB400 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	400	320	10:1/6:1 Mod (WB) (NA/LP)	14815	0.52	90	3292	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB400 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	400	320	5:1/3:1 Mod (WA) (NA/LP)	14815	0.52	90	3292	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB400 - One Stage	A B C D E F G P Q	400	320	1 to 1	14815	0.52	90	3292	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB400 - Two Stage (TN)	A B C D E F G P Q	400	320	2 to 1	14815	0.52	90	3292	0.03	33.37	17.37	75.25	16	166	4	2.5
HMB400 - Two Stage (TS)	A B C D E F G P Q	400	320	2 to 1	14815	0.52	90	3292	0.03	33.37	17.37	75.25	16	166	4	2.5

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

Configurations with 20-75°F Temp Rise

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V
HMB500 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	500	400	10:1/6:1 (NA/LP)	18519	0.57	75	4938	0.05	39.87	22	75.25	20	235	5
HMB500 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	500	400	10:1/6:1 Mod (WB) (NA/LP)	18519	0.57	75	4938	0.05	39.87	22	75.25	20	235	5
HMB500 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	500	400	5:1/3:1 Mod (WA) (NA/LP)	18519	0.57	75	4938	0.05	39.87	22	75.25	20	235	5
HMB500 - Two Stage (TS)	A B C D E F G P Q	500	400	2 to 1	18519	0.57	75	4938	0.05	39.87	22	75.25	20	235	5
HMB600 - 10:1/6:1 Mod (MB) (NA/LP)	A B C D E F G P Q	600	480	10:1/6:1 (NA/LP)	22222	0.61	75	5926	0.05	46.37	22	75.25	20	255	5
HMB600 - 10:1/6:1 Mod (WB) (NA/LP)	A B C D E F G P Q	600	480	10:1/6:1 Mod (WB) (NA/LP)	22222	0.61	75	5926	0.05	46.37	22	75.25	20	255	5
HMB600 - 5:1/3:1 Mod (WA) (NA/LP)	A B C D E F G P Q	600	480	5:1/3:1 Mod (WA) (NA/LP)	22222	0.61	75	5926	0.05	46.37	22	75.25	20	255	5
HMB600 - Two Stage (TS)	A B C D E F G P Q	600	480	2 to 1	22222	0.61	75	5926	0.05	46.37	22	75.25	20	255	5

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

Select An Efficiency:

81%80%

Configurations with 30-60°F Temp Rise

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HMB180 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	180	146	10:1/6:1 Mod (WB) (NA/LP)	4500	0.04	60	2250	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB180 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	180	146	5:1/3:1 Mod (WA) (NA/LP)	4500	0.04	60	2250	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB180 - One Stage (SN)	H I J K L M N R S	180	146	1 to 1	4500	0.04	60	2250	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB180 - Two Stage (TN)	H I J K L M N R S	180	146	2 to 1	4500	0.04	60	2250	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB180 - Two Stage (TS)	H I J K L M N R S	180	146	2 to 1	4500	0.04	60	2250	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB200 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	200	162	10:1/6:1 Mod (WB) (NA/LP)	5000	0.04	60	2500	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB200 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	200	162	5:1/3:1 Mod (WA) (NA/LP)	5000	0.04	60	2500	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB200 - One Stage (SN)	H I J K L M N R S	200	162	1 to 1	5000	0.04	60	2500	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB200 - Two Stage (TN)	H I J K L M N R S	200	162	2 to 1	5000	0.04	60	2500	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB200 - Two Stage (TS)	H I J K L M N R S	200	162	2 to 1	5000	0.04	60	2500	0.01	19.5	20.37	75.72	14	97	4	2.5
HMB225 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	225	182	5:1/3:1 Mod (WA) (NA/LP)	5625	0.07	60	2813	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB225 - One Stage (SN)	H I J K L M N R S	225	182	1 to 1	5625	0.07	60	2813	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB225 - Two Stage (TN)	H I J K L M N R S	225	182	2 to 1	5625	0.07	60	2813	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB225 - Two Stage (TS)	H I J K L M N R S	225	182	2 to 1	5625	0.07	60	2813	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB250 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	250	202	5:1/3:1 Mod (WA) (NA/LP)	6250	0.08	60	3125	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB250 - One Stage (SN)	H I J K L M N R S	250	202	1 to 1	6250	0.08	60	3125	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB250 - Two Stage (TN)	H I J K L M N R S	250	202	2 to 1	6250	0.08	60	3125	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB250 - Two Stage (TS)	H I J K L M N R S	250	202	2 to 1	6250	0.08	60	3125	0.02	19.5	23.62	75.72	14	116	4	2.5
HMB270 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	270	219	10:1/6:1 Mod (WB) (NA/LP)	6750	0.12	60	3375	0.03	19.5	26.87	75.72	14	131	4	2.5
HMB270 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	270	219	5:1/3:1 Mod (WA) (NA/LP)	6750	0.12	60	3375	0.03	19.5	26.87	75.72	14	131	4	2.5
HMB270 - One Stage (SN)	H I J K L M N R S	270	219	1 to 1	6750	0.12	60	3375	0.03	19.5	26.87	75.72	14	131	4	2.5
HMB270 - Two Stage (TN)	H I J K L M N R S	270	219	2 to 1	6750	0.12	60	3375	0.03	19.5	26.87	75.72	14	131	4	2.5
HMB270 - Two Stage (TS)	H I J K L M N R S	270	219	2 to 1	6750	0.12	60	3375	0.03	19.5	26.87	75.72	14	131	4	2.5
HMB300 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	300	243	10:1/6:1 Mod (WB) (NA/LP)	7500	0.15	60	3750	0.04	19.5	26.87	75.72	14	131	4	2.5
HMB300 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	300	243	5:1/3:1 Mod (WA) (NA/LP)	7500	0.15	60	3750	0.04	19.5	26.87	75.72	14	131	4	2.5
HMB300 - One Stage (SN)	H I J K L M N R S	300	243	1 to 1	7500	0.15	60	3750	0.04	19.5	26.87	75.72	14	131	4	2.5
HMB300 - Two Stage (TN)	H I J K L M N R S	300	243	2 to 1	7500	0.15	60	3750	0.04	19.5	26.87	75.72	14	131	4	2.5
HMB300 - Two Stage (TS)	H I J K L M N R S	300	243	2 to 1	7500	0.15	60	3750	0.04	19.5	26.87	75.72	14	131	4	2.5
HMB315 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	315	255	5:1/3:1 Mod (WA) (NA/LP)	7875	0.19	60	3938	0.05	19.5	30.12	75.72	14	147	4	2.5
HMB315 - One Stage (SN)	H I J K L M N R S	315	255	1 to 1	7875	0.19	60	3938	0.05	19.5	30.12	75.72	14	147	4	2.5
HMB315 - Two Stage (TN)	H I J K L M N R S	315	255	2 to 1	7875	0.19	60	3938	0.05	19.5	30.12	75.72	14	147	4	2.5
HMB315 - Two Stage (TS)	H I J K L M N R S	315	255	2 to 1	7875	0.19	60	3938	0.05	19.5	30.12	75.72	14	147	4	2.5
HMB350 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	350	284	5:1/3:1 Mod (WA) (NA/LP)	8750	0.24	60	4375	0.06	19.5	30.12	75.72	14	147	4	2.5
HMB350 - One Stage (SN)	H I J K L M N R S	350	284	1 to 1	8750	0.24	60	4375	0.06	19.5	30.12	75.72	14	147	4	2.5
HMB350 - Two Stage (TN)	H I J K L M N R S	350	284	2 to 1	8750	0.24	60	4375	0.06	19.5	30.12	75.72	14	147	4	2.5
HMB350 - Two Stage (TS)	H I J K L M N R S	350	284	2 to 1	8750	0.24	60	4375	0.06	19.5	30.12	75.72	14	147	4	2.5
HMB360 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	360	292	10:1/6:1 Mod (WB) (NA/LP)	9000	0.3	60	4500	0.07	19.5	33.37	75.72	14	166	4	2.5
HMB360 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	360	292	5:1/3:1 Mod (WA) (NA/LP)	9000	0.3	60	4500	0.07	19.5	33.37	75.72	14	166	4	2.5
HMB360 - One Stage (SN)	H I J K L M N R S	360	292	1 to 1	9000	0.3	60	4500	0.07	19.5	33.37	75.72	14	166	4	2.5
HMB360 - Two Stage (TN)	H I J K L M N R S	360	292	2 to 1	9000	0.3	60	4500	0.07	19.5	33.37	75.72	14	166	4	2.5
HMB360 - Two Stage (TS)	H I J K L M N R S	360	292	2 to 1	9000	0.3	60	4500	0.07	19.5	33.37	75.72	14	166	4	2.5
HMB375 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	375	304	10:1/6:1 Mod (WB) (NA/LP)	9375	0.33	60	4688	0.08	19.5	33.37	75.72	14	166	4	2.5
HMB375 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	375	304	5:1/3:1 Mod (WA) (NA/LP)	9375	0.33	60	4688	0.08	19.5	33.37	75.72	14	166	4	2.5
HMB375 - One Stage (SN)	H I J K L M N R S	375	304	1 to 1	9375	0.33	60	4688	0.08	19.5	33.37	75.72	14	166	4	2.5
HMB375 - Two Stage (TN)	H I J K L M N R S	375	304	2 to 1	9375	0.33	60	4688	0.08	19.5	33.37	75.72	14	166	4	2.5
HMB375 - Two Stage (TS)	H I J K L M N R S	375	304	2 to 1	9375	0.33	60	4688	0.08	19.5	33.37	75.72	14	166	4	2.5
HMB400 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	400	324	10:1/6:1 Mod (WB) (NA/LP)	10000	0.38	60	5000	0.09	19.5	33.37	75.72	14	166	4	2.5
HMB400 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	400	324	5:1/3:1 Mod (WA) (NA/LP)	10000	0.38	60	5000	0.09	19.5	33.37	75.72	14	166	4	2.5
HMB400 - One Stage (SN)	H I J K L M N R S	400	324	1 to 1	10000	0.38	60	5000	0.09	19.5	33.37	75.72	14	166	4	2.5
HMB400 - Two Stage (TN)	H I J K L M N R S	400	324	2 to 1	10000	0.38	60	5000	0.09	19.5	33.37	75.72	14	166	4	2.5
HMB400 - Two Stage (TS)	H I J K L M N R S	400	324	2 to 1	10000	0.38	60	5000	0.09	19.5	33.37	75.72	14	166	4	2.5

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

Configurations with 30-70°F Temp Rise

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V
HMB500 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	500	405	10:1/6:1 Mod (WB) (NA/LP)	12500	0.74	70	5357	0.13	22	39.87	75.72	20	235	5
HMB500 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	500	405	5:1/3:1 Mod (WA) (NA/LP)	12500	0.74	70	5357	0.13	22	39.87	75.72	20	235	5
HMB500 - Two Stage (TS)	H I J K L M N R S	500	405	2 to 1	12500	0.74	70	5357	0.13	22	39.87	75.72	20	235	5

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

Configurations with 30-80°F Temp Rise

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V
HMB600 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	600	486	10:1/6:1 Mod (WB) (NA/LP)	15000	1.31	80	5625	0.19	22	46.37	75.72	20	255	5
HMB600 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	600	486	5:1/3:1 Mod (WA) (NA/LP)	15000	1.31	80	5625	0.19	22	46.37	75.72	20	255	5
HMB600 - Two Stage (TS)	H I J K L M N R S	600	486	2 to 1	15000	1.31	80	5625	0.19	22	46.37	75.72	20	255	5

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

Configurations with 20-60°F Temp Rise

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Model Number	PDF	Max Input MBH	Max Output MBH	Max Avail. Turndown (Nat)	Max CFM	Max APD @ Min Rise	Max Temp Rise	Min CFM	Min APD @ Max Rise	Dim A	Dim B	Dim C	Dim D	Weight (Lbs.)	Total Amps 120V	Total Amps 208V 230V
HMB180 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	180	144	10:1/6:1 (NA/LP)	6667	0.03	60	2222	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB180 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	180	144	10:1/6:1 Mod (WB) (NA/LP)	6667	0.03	60	2222	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB180 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	180	144	5:1/3:1 Mod (WA) (NA/LP)	6667	0.03	60	2222	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB180 - One Stage	H I J K L M N R S	180	144	1 to 1	6667	0.03	60	2222	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB180 - Two Stage (TN)	H I J K L M N R S	180	144	2 to 1	6667	0.03	60	2222	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB180 - Two Stage (TS)	H I J K L M N R S	180	144	2 to 1	6667	0.03	60	2222	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB200 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	200	160	10:1/6:1 (NA/LP)	7407	0.04	60	2469	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB200 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	200	160	10:1/6:1 Mod (WB) (NA/LP)	7407	0.04	60	2469	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB200 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	200	160	5:1/3:1 Mod (WA) (NA/LP)	7407	0.04	60	2469	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB200 - One Stage	H I J K L M N R S	200	160	1 to 1	7407	0.04	60	2469	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB200 - Two Stage (TN)	H I J K L M N R S	200	160	2 to 1	7407	0.04	60	2469	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB200 - Two Stage (TS)	H I J K L M N R S	200	160	2 to 1	7407	0.04	60	2469	0.01	17.37	20.37	75.25	16	97	4	2.5
HMB250 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	250	200	10:1/6:1 (NA/LP)	9259	0.08	60	3086	0.01	17.37	23.62	75.25	16	116	4	2.5
HMB250 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	250	200	5:1/3:1 Mod (WA) (NA/LP)	9259	0.08	60	3086	0.01	17.37	23.62	75.25	16	116	4	2.5
HMB250 - One Stage	H I J K L M N R S	250	200	1 to 1	9259	0.08	60	3086	0.01	17.37	23.62	75.25	16	116	4	2.5
HMB250 - Two Stage (TN)	H I J K L M N R S	250	200	2 to 1	9259	0.08	60	3086	0.01	17.37	23.62	75.25	16	116	4	2.5
HMB250 - Two Stage (TS)	H I J K L M N R S	250	200	2 to 1	9259	0.08	60	3086	0.01	17.37	23.62	75.25	16	116	4	2.5
HMB270 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	270	216	10:1/6:1 Mod (WB) (NA/LP)	10000	0.11	60	3333	0.01	17.37	26.87	75.25	16	131	4	2.5
HMB300 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	300	240	10:1/6:1 (NA/LP)	11111	0.13	60	3704	0.02	17.37	26.87	75.25	16	131	4	2.5
HMB300 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	300	240	10:1/6:1 Mod (WB) (NA/LP)	11111	0.13	60	3704	0.02	17.37	26.87	75.25	16	131	4	2.5
HMB300 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	300	240	5:1/3:1 Mod (WA) (NA/LP)	11111	0.13	60	3704	0.02	17.37	26.87	75.25	16	131	4	2.5
HMB300 - One Stage	H I J K L M N R S	300	240	1 to 1	11111	0.13	60	3704	0.02	17.37	26.87	75.25	16	131	4	2.5
HMB300 - Two Stage (TN)	H I J K L M N R S	300	240	2 to 1	11111	0.13	60	3704	0.02	17.37	26.87	75.25	16	131	4	2.5
HMB300 - Two Stage (TS)	H I J K L M N R S	300	240	2 to 1	11111	0.13	60	3704	0.02	17.37	26.87	75.25	16	131	4	2.5
HMB350 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	350	280	10:1/6:1 (NA/LP)	12963	0.2	60	4321	0.03	17.37	30.12	75.25	16	147	4	2.5
HMB350 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	350	280	5:1/3:1 Mod (WA) (NA/LP)	12963	0.2	60	4321	0.03	17.37	30.12	75.25	16	147	4	2.5
HMB350 - One Stage	H I J K L M N R S	350	280	1 to 1	12963	0.2	60	4321	0.03	17.37	30.12	75.25	16	147	4	2.5
HMB350 - Two Stage (TN)	H I J K L M N R S	350	280	2 to 1	12963	0.2	60	4321	0.03	17.37	30.12	75.25	16	147	4	2.5
HMB350 - Two Stage (TS)	H I J K L M N R S	350	280	2 to 1	12963	0.2	60	4321	0.03	17.37	30.12	75.25	16	147	4	2.5
HMB360 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	360	288	10:1/6:1 Mod (WB) (NA/LP)	13333	0.24	60	4444	0.03	17.37	33.37	75.25	16	166	4	2.5
HMB375 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	375	300	10:1/6:1 Mod (WB) (NA/LP)	13889	0.26	60	4630	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB400 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	400	320	10:1/6:1 (NA/LP)	14815	0.3	60	4938	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB400 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	400	320	10:1/6:1 Mod (WB) (NA/LP)	14815	0.3	60	4938	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB400 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	400	320	5:1/3:1 Mod (WA) (NA/LP)	14815	0.3	60	4938	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB400 - One Stage	H I J K L M N R S	400	320	1 to 1	14815	0.3	60	4938	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB400 - Two Stage (TN)	H I J K L M N R S	400	320	2 to 1	14815	0.3	60	4938	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB400 - Two Stage (TS)	H I J K L M N R S	400	320	2 to 1	14815	0.3	60	4938	0.04	17.37	33.37	75.25	16	166	4	2.5
HMB500 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	500	400	10:1/6:1 (NA/LP)	18519	0.55	60	6173	0.07	22	39.87	75.25	20	235	5
HMB500 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	500	400	10:1/6:1 Mod (WB) (NA/LP)	18519	0.55	60	6173	0.07	22	39.87	75.25	20	235	5
HMB500 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	500	400	5:1/3:1 Mod (WA) (NA/LP)	18519	0.55	60	6173	0.07	22	39.87	75.25	20	235	5
HMB500 - Two Stage (TS)	H I J K L M N R S	500	400	2 to 1	18519	0.55	60	6173	0.07	22	39.87	75.25	20	235	5
HMB600 - 10:1/6:1 Mod (MB) (NA/LP)	H I J K L M N R S	600	480	10:1/6:1 (NA/LP)	22222	0.93	60	7407	0.12	22	46.37	75.25	20	255	5
HMB600 - 10:1/6:1 Mod (WB) (NA/LP)	H I J K L M N R S	600	480	10:1/6:1 Mod (WB) (NA/LP)	22222	0.93	60	7407	0.12	22	46.37	75.25	20	255	5
HMB600 - 5:1/3:1 Mod (WA) (NA/LP)	H I J K L M N R S	600	480	5:1/3:1 Mod (WA) (NA/LP)	22222	0.93	60	7407	0.12	22	46.37	75.25	20	255	5
HMB600 - Two Stage (TS)	H I J K L M N R S	600	480	2 to 1	22222	0.93	60	7407	0.12	22	46.37	75.25	20	255	5

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