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Hayward
Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater

Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater

Best price now

$3,699.00at Leslie's Pool SuppliesChecked Nov 7

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Last seen at $3,699.00 at Leslie's Pool Supplies on Nov 7.
  • Checked at 2 stores.

Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater prices at every store

  • Leslie's Pool SuppliesNew

    In stock

    $3,699.00Free shippingChecked Nov 7
    Visit Leslie's Pool Supplies
  • Pool Supply DepotNew

    In stock

    $3,999.00+ $350.00 shippingChecked Nov 7
    Visit Pool Supply Depot

Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater price history

Lowest price we've seen: $3,699.00 on Nov 7 at Leslie's Pool Supplies. Tracked across 2 stores since Nov 7.

From Pool Supply Depot

  • 250,000 BTU natural gas pool and spa heater for residential in-ground pools and spas
  • Low NOx emissions design suitable for areas with stricter clean-air requirements
  • Cupro nickel heat exchanger for enhanced corrosion resistance
  • Forced-draft combustion system with electronic ignition and no standing pilot
  • Digital LED control panel with temperature display and built-in diagnostics
  • 120/240 V, 60 Hz, single-phase electrical compatibility
Materials
Cupro nickel heat exchanger; 2" x 2.5" CPVC union plumbing connections, where supplied
Fit
Compact, low-profile cabinet; universal-style design for flexible installation and heater replacement; approx. 24" x 25" x 29.5"
Sizing
Should be properly sized for pool volume, desired temperature rise, plumbing flow, and local climate; professional installation recommended
Guarantee
Warranty terms to be confirmed at time of purchase
Returns
Return & Refund policy referenced on the page
Shipping
Oversized item: flat-rate freight shipping added at checkout; free shipping on orders over a threshold does not apply to this item
In the box
One Hayward Universal H-Series Natural Gas Heater, 250K BTU, Digital control system, Cupro nickel heat exchanger, Electronic ignition system, Factory-installed heater components, Manufacturer documentation, where supplied by packaging

About the Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater

Product Overview

The Hayward Universal H-Series Natural Gas Heater W3H250FDN is a 250,000 BTU pool and spa heater designed to deliver fast, dependable, and efficient heating for residential in-ground pool and spa applications. Built on Hayward’s Universal H-Series platform, this heater combines strong natural gas performance with Low NOx emissions, flexible installation features, and durable construction for long-lasting pool comfort.

Featuring a cupro nickel heat exchanger, electronic ignition, digital controls, and a forced-draft combustion system, the W3H250FDN is engineered to provide reliable heating while helping protect against corrosion caused by challenging water chemistry conditions.

Reliable Natural Gas Heating for Pools and Spas

The Universal H-Series 250K BTU natural gas heater helps raise and maintain comfortable water temperatures for pools and spas. Whether used to extend the swimming season, warm cooler water, or provide fast heat recovery for an attached spa, this heater delivers dependable on-demand heating when properly sized and professionally installed.

Questions and answers

Where is the Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater cheapest?
At Leslie's Pool Supplies, for $3,699.00, as of our latest check.
Where can I buy the Hayward W3H250FDN Universal H-Series 250,000 BTU Natural Gas Pool Heater?
2 stores we checked sell it, including Leslie's Pool Supplies, Pool Supply Depot.

Its 250,000 BTU output makes it a practical choice for residential pool and spa systems that require stronger heating performance than smaller gas heater models.

Built for Low NOx Performance

The Hayward Universal H-Series Low NOx heater is designed to help reduce nitrogen oxide emissions while delivering strong heating performance. This makes it suitable for many areas with stricter clean-air requirements.

The W3H250FDN uses natural gas and should only be installed with the proper natural gas supply, gas line sizing, ventilation, electrical setup, and code-compliant installation.

Flexible Universal Installation Design

The Universal H-Series platform is designed for adaptable installation and easier replacement. Its compact cabinet, connection flexibility, and service-friendly layout make it a strong option for both new equipment pads and heater replacement projects.

This heater is commonly selected for residential in-ground pools, spas, and pool/spa combinations where natural gas service is available.

Ideal For

Residential in-ground pools

Attached spas and pool/spa combinations

Mid-size to larger residential pool heating applications

Homes using natural gas

Saltwater pools with properly balanced water chemistry

Replacing an older natural gas pool heater

Pool owners wanting faster heating than solar alone

New equipment pad installations

Installations requiring 120/240 V compatibility

Areas where Low NOx heater performance is required

Key Features

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