Hayward Universal H-Series Natural Gas 250,000 BTU Low NOx Pool Heater
Hayward W3H250FDN
The Universal H-Series is an energy-efficient, high-performance, installation adaptable commitment to the pool service professional.
Product Overview

Hayward W3H250FDN Advanced Features
Standard cupro nickel heat exchanger
Excellent salt water and chemical corrosion resistance
Exclusive "Totally Managed" cupro nickel heat exchanger water flow
Same water velocity through all tubes for faster heating
Patented header by-pass design
Up to 18 percent savings by reducing pump run-time
2in x 2 1/2in CPVC union plumbing connections
Common union for installation or service, adapts to larger plumbing recommended for greater efficiencies
Natural Gas, Low NOx emissions - meets clean air quality standards
Corrosion Protection
The Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.


Cupro Nickel State-of-the-art Finn Plate Heat Exchanger

Superior Hydraulic Performance and Reliability

Intuitive and easy to read L.E.D. Control Panel provides digital temperature readout, diagnostics and electronic 'lock-out' of temperature set-point.

Energy Savings with Leading Technology
The efficient, industry-leading design reduces circulation pump run time to provide energy savings.
Best Suited for In-ground pools and spas with a surface area up to 750 ft. where natural gas is available. Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required.



Specs & Details
| Product Name | Universal H-Series Natural Gas 250,000 BTU Low NOx Pool Heater |
| Manufacturer Part Number | W3H250FDN |
| Sku | HAY-15-1012 |
| UPC | 0610377387231 |
- Hayward H Series Owners Manual|
California Proposition 65 Warning
WARNING: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. For more information: www.p65Warnings.ca.gov


























