Hayward Universal H-Series W3H200FDN pool heater, front viewHayward Universal H-Series Natural Gas 200,000 BTU Low NOx Pool Heater, W3H200FDN In stock$3,69900 Web Price
Hayward Universal H-Series W3H200FDN pool heater, front view
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Hayward Universal H-Series Natural Gas 200,000 BTU Low NOx Pool Heater, W3H200FDN

Ask a questionMPN W3H200FDN
$3,69900 Web Price Some manufacturers don’t allow us to publicly display their best prices online. When you request an Unadvertised Deal, you’re asking us to unlock a special offer that isn’t shown on the site.
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Quick overview

  • Natural gas, 200,000 BTU The 200K BTU natural gas model in the Universal H-Series line, part W3H200FDN.
  • Low NOx A Low NOx heater, which matters where local code calls for one on a new install.
  • Induced draft Hayward builds this model with an induced draft design.
  • Pool and spa Rated by Hayward as a pool and spa heater, not a pool only unit.
  • Adaptable to the install Hayward designs the Universal H-Series around installation flexibility rather than one fixed layout.
  • Aimed at the trade Hayward positions the Universal H-Series at the pool service professional.
Full description and specifications ↓

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Product details

The Hayward W3H200FDN is the 200,000 BTU natural gas model in the Universal H-Series, a Low NOx pool and spa heater with an induced draft design.

What the Universal H-Series is for

Hayward built the line around the pool service professional: efficient, high performance and adaptable to the install in front of you rather than assuming one plumbing and venting layout. That flexibility is the reason the series turns up on so many retrofits, where the equipment pad was laid out for something else.

Low NOx

This is the Low NOx version. In a lot of regions that is not optional on a new heater, so check what your local code asks for before you buy. The heater is rated for both pool and spa duty.

Sizing and installation

200,000 BTU is the input rating. The right size for a given pool depends on the water volume, how long a season you want, and how much wind and shade the pool sees, so have the heater sized to the site. Gas heaters need correct gas supply, venting and clearances, which is work for a licensed installer.

Specifications
Brand Hayward
Manufacturer part number W3H200FDN
Series Universal H-Series
UPC 0610377387217
Type Gas pool and spa heater
Fuel Natural gas
Heat input 200,000 BTU/hr
Heat output 166,000 BTU/hr at 83 percent
Thermal efficiency 83 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 10,100 ft unmodified, natural gas
Dimensions 24 in high, 22 in wide, 29.5 in long
Unit weight 140 lb
Shipping weight 161 lb
Manufacturer status Hayward lists the W3H200FDN as discontinued, replaced by the W3HS200FDN
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Questions and answers

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

What is the difference between H200FDN and W3H200FDN?
The sales channel and the warranty, not the heater. W3H200FDN is the Open Line number, which Hayward approves for sale online and in stores. H200FDN is the Expert Line number for the same size and fuel, sold through stores and pool professionals. This listing is W3H200FDN.
Is the Hayward W3H200FDN discontinued?
Hayward's own site lists the W3H200FDN as discontinued and names the W3HS200FDN as its replacement. This listing is the W3H200FDN.
What does the AO code mean on a Hayward H200FDN?
The blower vacuum switch is open, by Hayward's troubleshooting guide; AC means it is closed. Our pool heater error code guide covers both and the other codes.
What altitude can the Hayward H200FDN be installed at?
Up to 10,100 ft on natural gas with no modification, by Table 1 of Hayward's manual.
What warranty does Hayward give the W3H200FDN?
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 H200FDN?
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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