Hayward Heat Exchanger Assembly | FDXLHXA1150

Hayward Products SKU: FDXLHXA1150
Hayward Heat Exchanger Assembly | FDXLHXA1150 - Heater Parts - img - 1
Hayward H-Series 135K BTU Heater Not sure it fits? See this part on the interactive diagrams Hayward H-Series 135K BTU HeaterHayward Universal H-Series Low NOx Heater

Hayward Heat Exchanger Assembly | FDXLHXA1150

Hayward Products SKU: FDXLHXA1150
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Hayward FDXLHXA1150 – Heat Exchanger Assembly

Product Overview

The Hayward FDXLHXA1150 is a genuine OEM heat exchanger assembly designed for Hayward Universal H-Series Low NOx pool heaters. It restores efficient heating performance by replacing a worn, leaking, or corroded heat exchanger and is engineered specifically for 150,000 BTU heater models.

Key Features

  • Direct OEM replacement for 150,000 BTU H-Series Low NOx heaters.
  • Corrosion-resistant construction for long service life in chemically treated pool water.
  • Restores proper heat transfer and heater efficiency.
  • Designed to fit factory mounting points and plumbing connections for easy installation.

Technical Specifications

  • Part Number: FDXLHXA1150
  • Heater Size: 150,000 BTU
  • Compatible Models: Hayward H-Series Low NOx heaters such as H150FD and equivalent 150k units
  • Application: Heat exchanger replacement for in-ground pool and spa heaters

Applications & Compatibility

This heat exchanger is used when the existing exchanger in an H-Series Low NOx heater becomes restricted, corroded, or develops leaks. It is designed to fit 150k BTU models and should be matched to the heater's exact series and configuration before ordering.

Installation Instructions

  • Shut off power, water flow, and gas supply to the heater before servicing.
  • Allow the heater to cool and remove the access panels to reach the exchanger assembly.
  • Disconnect plumbing, sensors, and mounting components attached to the old exchanger.
  • Remove the old exchanger and install the new FDXLHXA1150, ensuring all seals and fittings are properly aligned.
  • Reconnect plumbing, sensors, power, and reinstall heater panels. Restore water flow, power, and gas supply.
  • Start the heater and verify proper heating performance and leak-free operation.

Troubleshooting

  • Inadequate heating: Check water flow rate, verify all plumbing is opened, and ensure exchanger is correctly installed.
  • Leaks at fittings: Inspect seals and connections for proper seating and torque.
  • Burner issues: Confirm all gaskets and panels are installed correctly and ventilation is unobstructed.

Maintenance Tip

Inspect the heater annually for scaling or corrosion, maintain proper water chemistry, and verify adequate flow through the heat exchanger. Early detection of wear can extend heater life and reduce energy costs.

Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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