Dimensions Inches Shipping Weight Model | Raypak 181-401 specification

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

Catalog No.: 2000.203E

Effective: 12-1-07

Replaces: 4-1-05

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Raypak 181-401 warranty Dimensions Inches Shipping Weight Model, Width Height Flue Dia Lbs. Approx Input Output No Pump

181-401 specifications

The Raypak 181-401 is a high-efficiency gas-fired pool and spa heater, designed to deliver optimal performance while ensuring energy savings. Renowned for its reliability and durability, this heater is a popular choice among pool owners looking for a dependable heating solution that accommodates both in-ground and above-ground pools.

One of the primary features of the Raypak 181-401 is its versatile heating capabilities. With a BTU output of approximately 181,000, it quickly raises the temperature of pool water, making it ideal for use in various climates and during different seasons. Its compact design allows for easy installation in limited spaces, and it can be integrated with existing pool systems without hassle.

The construction of the Raypak 181-401 is robust, featuring a corrosion-resistant cabinet that ensures longevity even in harsh weather conditions. This durability is further enhanced by its heat exchanger, which is made from copper and designed to withstand high temperatures while providing excellent thermal conductivity. The design minimizes the potential for scale build-up and extends the life of the unit.

Patented technologies in the Raypak 181-401 contribute to its outstanding efficiency. The heater utilizes a digital thermostat that allows for precise temperature control, enabling users to set their desired water temperature for maximum comfort. Its electronic ignition system eliminates the need for a standing pilot light, reducing energy consumption and enhancing reliability.

Another noteworthy aspect of the Raypak 181-401 is its user-friendly control panel. This interface allows users to monitor and adjust settings easily, ensuring optimal performance. Additionally, the heater comes equipped with built-in safety features, such as high-limit switches and a robust diagnostic system, ensuring safe operation.

For environmentally conscious consumers, the Raypak 181-401 operates with reduced emissions, making it a greener choice compared to other heating options. Its energy-efficient design not only contributes to lower utility bills but also aligns with modern standards for eco-friendly pool heating.

Overall, the Raypak 181-401 stands out as a powerful, efficient, and reliable pool heater, catering to both residential and commercial needs. With its combination of advanced technologies, durable construction, and user-friendly features, it continues to be a top choice among pool enthusiasts seeking quality heating solutions.