Model		75	100	125	150	175	200	225	250	300	350	400
Total Input	[Btu/h] x [1000]	75	100	125	150	175	200	225	250	300	350	385
Total Output	[Btu/h] x [1000]	61.5	82	102.5	123	143.5	164	184.5	205	246	288.6	315.7
Efficiency		82%	82%	82%	82%	82%	82%	82%	82%	82%	82%	82%
Number of Burners		5	6	7	7	8	9	10	11	12	14	14
Gas Connection	[in.]	1/2	1/2	1/2	1/2	1/2	1/2	3/4	3/4	3/4	3/4	3/4
Inlet Pressure	[in wc] NG Min.	5	5	5	5	5	5	5	5	5	5	5
	[in wc]LPG Propane Min.	12	12	12	12	12	12	12	12	12	12	12
	[in wc]NG & LP Propane Max.	14	14	14	14	14	14	14	14	14	14	14
Electrical Supply		120 V / 60 Hz / 1 Ø
Full Load Amps @ 120V		1	2	2	2	2	2	2	2	2	6	6
Min. Air Volume	[CFM]	850	950	1020	1360	1400	2050	2100	2350	2700	3120	3420
Temp. Rise @ Min. Air Volume	[°F]	68	78	92	83	95	73	80	80	86	86	86
Heat Exchanger Pressure Drop @ Min. Air Volume	[in wc]	0.06	0.05	0.06	0.02	0.03	0.025	0.035	0.05	0.02	0.03	0.04
Max. Air Volume	[CFM]	2650	3660	4750	5800	6850	7750	8300	8850	10200	13600	14200
Temp. Rise @ Max. Air Volume	[°F]	22	22	20	20	20	20	20	22	23	22	22
Heat Exchanger Pressure Drop @ Max. Air Volume	[in wc]	0.36	0.55	0.98	0.16	0.29	0.163	0.253	0.35	0.27	0.48	0.53
Flue Size	[in.]	4
Air Intake	[in.]	4	4	4	4	4	4	4	4	5	5	5
Weight	[lb.]	81	92	97	191	211	239	249	254	325	345	345
Minimum Inlet Duct Length	[in.]	32	37	37	52	52	60	60	60	75	75	75
Duct Size	[WxH] [in.]	163/4 x 157/8	213/4 x 157/8	213/4 x 157/8	28 x 24	28 x 24	28 x 321/2	28 x 321/2	28 x 321/2	35 x 401/2	35 x 401/2	35 x 401/2