By Hayward Pool Products



Part # H250FDP-2018SD

Warranty 1 Year

Product Description

Universal H-Series Low NOx Heaters
For In-Ground Pools and Spas - Electronic Ignition Dual Thermostat

Now With Cupro Nickel Heat Exchanger!

NEW Hayward Universal H-Series Low NOx heater combines industry-leading hydraulic performance; environmentally responsible low NOx emissions and a standard cupro nickel heat exchanger with a low profile appearance, lighter weight design, independent left or right side electric, water and gas connections plus 2" x 2 1/2" CPVC union connections to provide the ultimate installation flexibility for new or existing equipment pads.

It also includes a forced draft system that constantly moves air through the combustion chamber at a precise flow rate. As a result, all outside weather variables that can affect the heating performance, such as wind conditions, are eliminated - without having to install a high-wind stack.

NOTE: The Hayward Universal H-Series heaters meet the NOx Emission standards set by the California South Coast Quality Air Management Commission for 2001 and the Texas Natural Resource Conservation Commission Code.


  • Forced draft system constantly moves air through the combustion chamber at a precise flow rate, eliminating all outside weather variables that can effect the heating performance, such as high wind conditions -- without a high wind stack.
  • Our patented single header "V" baffle design heat exchangers allow for long life, fast heating and virtually no condensation. All Hayward heat exchangers are now constructed with highly resilient Cupro Nickel for greater durability and longevity even in salt-based, high flow or aggressive water chemistry set ups.
  • Easy-to-read L.E.D. digital Control Panel provides digital temperature readout and diagnostics for quick identification of components that might need service.
  • New polymer header provides superior hydraulic performance to save energy and protect against the damaging effects of erosion from high flow conditions for improved reliability.
  • Designed for today's larger diameter plumbing systems with 2" x 2 1/2" CPVC unions.
  • 1 Year limited warranty
  • Now with Cupro Nickel Heat Exchanger

Overall Dimensions


?     Asked on 6/23/2021by Detlef Naase

Hallo there my 14 year old heater an H 250 went kaput. Is that dent on top all of the damage. Are you sure is there isn't anything vital under that ding. What if it rattles and shakes after i hook it up, and freezes the water instead of heating it. Where are you located, thank you for your help Detlef

A  Answered on 6/24/2021 by InyoPools Product Specialist Craig C.

Hello Detlef.  The Hayward H-Series Low NOx Heater H250FDP Scratch and Dent is not currently in stock.  In the event one is ordered, (when available), delivered, installed and the heater does not perform, then the repair is covered under the Hayward Warranty.  In the event one is ordered, delivered, but not installed and a decision is made to return the Heater then a $250,00 charge is assessed to the customer.