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Hayward H Series 135,000 BTU Electronic Natural Gas Heater

SKU#: H135ID1
$2,699.00
$2,999.00
You save 10%
Availability: In Stock
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  • Powerful 135,000 BTU Heating: Heats your pool quickly, allowing for extended swimming and a more enjoyable experience throughout the season

  • Reliable Electronic Ignition: Starts up seamlessly each time, without the need for a standing pilot light, ensuring smooth operation

  • Tough, Corrosion-Resistant Build: Crafted with durable materials that resist pool chemicals and weather elements, offering lasting durability

  • Simple Digital Controls: Adjust the temperature effortlessly with the easy-to-use digital interface, providing precise control over your pool's warmth

  • Energy-Efficient & Eco-Friendly: Heats your pool using natural gas in a way that's both efficient and environmentally conscious, saving energy while delivering consistent heat

OverviewManuals & GuidesReviewsQ & A

Description

Hayward’s H-Series 135,000 BTU gas heaters for above-ground pools boast industry-leading hydraulic performance along with easy operation. Their extreme durability and environmentally friendly design ensure season after season of premium heating performance. This is a low altitude heater, it will not work above 2000 feet

Features

  • Available in either natural gas or propane

  • Durable cupro nickel heat exchanger

  • Industry-leading hydraulic performance with faster speed-to-heat capability

  • Intuitive and easy-to-operate electronic panel

  • Exclusive "Totally Managed" cupro nickel heat exchanger water flow

  • Low NOx emissions—meets clean air quality standards

  • Includes a 1 Year Manufacturer's Warranty

Highlights

Product Video

https://youtube.com/embed/LfzvNPt_Jj0

Specs

Specifications
BTU Rating135,000
Max Altitude2,000 Feet
Thermal Efficiency82%
Heat ExchangerCupro Nickel
Water Connection1½"
Gas Connection¾"
Installation LocationOutdoor ONLY
Heater Weight100 lbs
Dimensions21.5" x 29.75" x 22.5"

Warranty

1 Year Manufacturer's Warranty. Refer to Owners Manual under Manuals Tab for more details.

Hayward H Series 135,000 BTU Electronic Natural Gas Heater Reviews

imageWhat type of ignition does the Hayward H135FDN use — millivolt or electronic? 1 Answer

  • The Hayward H Series 135,000 BTU Heater uses an electronic ignition system,

imageCan this heater be used with a saltwater pool? 1 Answer

  • Definitely. The standard cupro-nickel heat exchanger provides excellent resistance to saltwater and chemical corrosion, ensuring longevity and performance.

    Answered by Davestaff on September 4, 2025

imageCan I install this heater indoors? 1 Answer

  • The H135FDN is designed for outdoor installation only.

imageWhat type of pools is this heater compatible with? 1 Answer

  • This heater is ideal for above-ground pools and spas. Its durable cupro-nickel heat exchanger offers excellent resistance to corrosion, making it suitable for pools with saltwater systems or varying chemical levels.

    Answered by Mitchellstaff on June 30, 2023

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