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Swimming Pool Heater - Hayward Universal H-Series Low Nox Pool Heater
Inground Swimming Pool Heater


Hayward Universal H-Series Low NOx

Universal H-Series Low NOx heater has an 84 percent industry-leading thermal efficiency and complies with all current California air quality emission standards. The low NOx emission makes it a perfect choice for the environmentally concerned pool owner.

Its hydraulic performance also saves energy by reducing the circulation time of the pump and it can raise the temperature of an 800 gallon pool 30 degrees in less than an hour.

Other advances include stainless steel burners, corrosion-resistant heat exchangers and insulated Fire Tile combustion chambers. This traps the heat unlike other forms of insulation delivering the highest degree of performance from every BTU. Equipped with an LED control panel, it monitors heater performance for added convenience and maximum comfort with minimum effort. The ignition system delivers dependable lighting and reliable operations with just a touch of a button. The forced draft system constantly moves air through the combustion chamber to eliminate all outside weather variables affecting heating performance, such as wind conditions, eliminating the need to install a high-wind stack.


•Superior Hydraulic Performance - New polymer header provides superior hydraulic performance to save energy and protect against the damaging effects of erosion from high flow conditions for improved reliability. Designed for today’s larger diameter plumbing systems with 2" x 2 1/2" CPVC unions.
•Forced Draft System - Forced draft system constantly moves air through the combustion chamber at a precise flow rate, eliminating all outside weather variables that can effect the heating performance, such as high wind conditions — without a high wind stack.
•State-of-the-Art Finn Plate Heat Exchanger with Cupro Nickel - Our patented single header "V" baffle design heat exchangers allow for long life, fast heating and virtually no condensation. All Hayward heat exchangers are now constructed with highly resilient Cupro Nickel for greater durability and longevity even in salt-based, high flow or aggressive water chemistry set ups.
•L.E.D. Control Panel - Easy-to-read L.E.D. Control Panel provides digital temperature readout and diagnostics for quick identification of components that might need service.

Hayward offers a 2 year limited warranty against defects and a 1 year limited warranty on labor.




Item Retail Price Quantity
W3H150FDP - Universal Heater 150K Lp Lo Nox - W3H150FDP $2,999.99 $2,499.99
W3H150FDN - Universal Heater 150K Na Lo Nox - W3H150FDN $2,999.99 $2,499.99
W3H200FDP - Universal Heater 200K Lp Lo Nox - W3H200FDP $3,399.99 $2,949.99
W3H200FDN - Universal Heater 200K Na Lo Nox - W3H200FDN $3,399.99 $2,949.99
W3H250FDP - Universal Heater 250K Lp Lo Nox - W3H250FDP $3,799.99 $3,281.99
W3H250FDN - Universal Heater 250K Na Lo Nox - W3H250FDN $3,799.99 $3,281.99
W3H400FDP - Universal Heater 400K Lp Lo Nox - W3H400FDP $4,499.99 $3,968.99
W3H400FDN - Universal Heater 400K Na Lo Nox - W3H400FDN $4,499.99 $3,968.99

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