Raypak 181-401 warranty Raytherm - Type H Low NOx, Hydronic Heating Boilers - Indoor, Model

Raytherm - Type H Low NOx

Hydronic Heating Boilers - Indoor Model

*

					Dimensions (Inches)			Shipping Weight
Model	MBTU	MBTU	AFUE	Width	Height		Flue Dia.	(Lbs.) – Approx.
No.	Input	Output	(%)	A	C	J	K	No Pump	w/ Pump
H-181*	181	148	82.6	18-1/4	62-5/8	12-1/16	6	191	221
H-261	264	216	82.7	22-3/8	62-7/8	11-1/8	7	214	244
H-331	334	274	N/A	25-3/4	63-3/4	10-3/4	8	234	264
H-401*	399	327	N/A	29-1/4	65-3/8	12-1/2	9	253	283

*Exceptions on H3 (two-stage-fired) models:

-Model H3-181 has an 18-1/4” gas connection

-Model H3-401 has 375 MBTU Input and 308 MBTU Output

NOTE: Ratings shown are for elevations up to 2,000 feet. For elevations over 2,000, reduce ratings at the rate of 4% for each 1,000 feet above sea level.

BOILER RATE OF FLOW AND PRESSURE DROP

Model	10° ∆T		20° ∆T		30° ∆T
No.
	GPM	∆P FT	GPM	∆P FT	GPM	∆P FT
H-181	30	4.2	N/A	N/A	N/A	N/A
H-261	43	8.5	22	2.2	N/A	N/A
H-331	N/A	N/A	27	3.4	N/A	N/A
H-401	N/A	N/A	33	5.2	22	2.3

N/A – Not Applicable

Raypak, Inc. ƒ 2151 Eastman Avenue, Oxnard, CA 93030 ƒ (805) 278-5300 ƒ Fax (800) 872-9725 ƒ www.raypak.com

Catalog No.: 2000.203E Effective: 12-1-07 Replaces: 4-1-05