Hayward Universal H-Series W3H150FDN pool heater, front viewHayward Universal H-Series Natural Gas 150,000 BTU Low NOx Pool Heater, W3H150FDN In stock$2,99900 Web Price
Hayward Universal H-Series W3H150FDN pool heater, front view
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Hayward Universal H-Series Natural Gas 150,000 BTU Low NOx Pool Heater, W3H150FDN

Ask a questionMPN W3H150FDN
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Quick overview

  • Universal H-Series Hayward built this line around energy efficient, high performance operation for the pool service professional.
  • 150,000 BTU The smallest output in the H-Series range, sized for spas and smaller pools.
  • Natural gas Fired on natural gas, part number W3H150FDN.
  • Low NOx A Low NOx heater, which is what many jurisdictions require on new installs.
  • Installation adaptable The Universal H-Series was designed to drop into a wide range of pad layouts.
  • Freight delivery A full heater ships by freight, so plan for a curbside delivery.
Full description and specifications ↓

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Universal H-Series Natural Gas 150,000 BTU Low NOx Pool Heater, W3H150FDN

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Product details

The Hayward W3H150FDN is the 150,000 BTU natural gas model in the Universal H-Series line of pool and spa heaters, built to Low NOx emissions.

The H-Series idea

Hayward designed the Universal H-Series around energy efficient, high performance operation and adaptable installation, with the pool service professional in mind. The result is a heater meant to fit a wide range of equipment pads rather than one ideal layout.

Sizing

At 150,000 BTU this is the smallest output in the range, which suits spas and smaller pools. Heater sizing depends on the surface area of the body of water, the climate and how quickly you want to reach temperature, so confirm the output against your own pool before ordering.

Installation and delivery

Gas heaters need a correctly sized gas line, proper venting and a licensed installer. The heater ships by freight, so plan for a curbside delivery.

Specifications
Brand Hayward
Manufacturer part number W3H150FDN
Series Universal H-Series
UPC 0610377387194
Type Gas pool and spa heater
Fuel Natural gas
Heat input 150,000 BTU/hr
Heat output 124,050 BTU/hr at 82.7 percent
Thermal efficiency 82.7 percent, by Hayward
Ignition Hot surface
Heat exchanger Cupro nickel
Emissions Low NOx, meets SCAQMD Rule 1146.2
Electrical 120 or 240 V, single phase, 60 Hz
Amp draw 5.5 A circuit; 15 A maximum breaker
Water connections 2 in x 2-1/2 in CPVC unions
Warranty 1 year on parts, no labor, by Hayward for its Open Line (W3) models
Elevation To 7,700 ft unmodified, natural gas
Dimensions 24 in high, 19 in wide, 29.5 in long
Unit weight 135 lb
Shipping weight 150 lb
Manufacturer status Hayward lists the W3H150FDN as discontinued, replaced by the W3HS150FDN
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Questions and answers

What people ask about this product, answered by our pool techs.

What is the difference between H150FDN and W3H150FDN?
The sales channel and the warranty, not the heater. W3H150FDN is the Open Line number, which Hayward approves for sale online and in stores. H150FDN is the Expert Line number for the same size and fuel, sold through stores and pool professionals. This listing is W3H150FDN.
Is the Hayward W3H150FDN discontinued?
Hayward's own site lists the W3H150FDN as discontinued and names the W3HS150FDN as its replacement. This listing is the W3H150FDN.
What does the HS code mean on a Hayward H150FDN?
The return water went over the maximum temperature, rose too fast, or both, by Hayward's troubleshooting guide. Our pool heater error code guide covers HS and the other codes.
What altitude can the Hayward H150FDN be installed at?
Up to 7,700 ft on natural gas with no modification, by Hayward's manual, and up to 10,100 ft with the modifications it describes.
What warranty does Hayward give the W3H150FDN?
One year on parts, with no labor coverage. That is Hayward's warranty for its Open Line, the W3 part numbers it approves for sale online. Hayward's longer parts and labor warranties belong to its Expert Line numbers, which it sells only through stores and pool professionals.
Where is the manual for the Hayward H150FDN?
Under Downloads on this page, as the Installation Manual. It is Hayward's Universal H-Series installation manual, and covers the H150FD through H500FD heaters in natural gas and propane.
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