• Hayward W3H400FDN Pool Heater
  • Universal H Series - 400K BTU, Natural Gas, Low NOx
1 2
Hayward

Hayward W3H400FDN Pool Heater | Universal H-Series 400K BTU, Natural Gas, Low NOx

Hayward W3H400FDN Pool Heater | Universal H-Series 400K BTU, Natural Gas, Low NOx

$4,849.00 USD
$4,849.00 USD
Sale Sold out
Shipping calculated at checkout.

Transform your pool into a year-round oasis with the Universal H-Series Natural Gas 400,000 BTU Low NOx Heater. Shasta Pool Supply markets the best prices on Hayward pool equipment. Specifically, the Hayward W3H400FDN Pool Heater combines energy efficiency and installation flexibility.

Hayward W3H400FDN Pool Heater

The Universal H-Series boasts a patented header by-pass design. Furthermore, it ensures uniform water flow through all tubes for faster and more efficient heating. Therefore, this innovative design significantly reduces pump run-time and results in substantial energy savings.

2 day handing time
Free shipping
What does this mean?
View full details
Hayward Pool Equipment on Sale

Key Features

• Energy Efficient: Delivers 400,000 BTU/hr heating capacity with low NOx emissions
• Corrosion Resistant: Standard cupro nickel heat exchanger for excellent salt water and chemical resistance
• Installation Adaptable: 2in x 2 1/2in CPVC union plumbing connections for easy setup
• Low Environmental Impact: Meets clean air quality standards
• Powerful Performance: Heats pools up to 125 gallons per minute

Technical Specifications

Dimensions: 24" x 34" x 29.5"
Weight: 195 lb
Fuel Type: Natural Gas
Voltage: 120V
Circuit Amps: 5.5

Specs

  • Part Number: W3H400FDN
  • Manufacturer: Hayward
  • Length: 24.0
  • Width: 34.0
  • Height: 24.0
  • Voltage: 120/240
Hayward pool equipment on sale

Adapts Easily to Larger Plumbing

Resistance to Salt Water and Pool Chemicals

Presently, this heater features a cupro nickel heat exchanger that provides superior resistance to salt water and pool chemicals. Moreover, the low NOx emissions meet strict air quality standards.

Installation is a breeze with the 2in x 2 1/2in CPVC union plumbing connections. Additionally, it adapts easily to larger plumbing for enhanced efficiency.

Pool Supply Store

Limited Time Sale

Find the best pool equipment to complete your entire pool system. The lowest possible prices offered at fastest shipping.

View all

What our customers are saying

I will only use Shasta.

Tory W.

We had to do pickup but it went smoothly

Suzy I.

I bought a demo/open box chlorinator from them. So far the product has been working well (one week) and it looked new in the manufacturers box when I got it. Communication with them was great. Price I got for the open box item was worth it. Would use them again. Thanks.

Ken J.

Frequently Asked Questions

FAQ

Our expert staff answers customer's most asked questions.

How does the warranty differ for products purchased online?

How many BTUs does my heater need to heat a pool or spa?

My Pool water gets too hot in the summer to enjoy it. What can I cool it down with?

Learning Center

Blog posts

The latest news and guides making buying and maintaining pool equipment easier.

1 3