Hayward  W3H400FDN  400K BTU Natural Gas Pool  Spa Heater  Limited Warranty
Hayward  W3H400FDN  400K BTU Natural Gas Pool  Spa Heater  Limited Warranty
W3H400FDN - 400K BTU, Natural Gas, Pool & Spa Heater - Limited Warranty
W3H400FDN - 400K BTU, Natural Gas, Pool & Spa Heater - Limited Warranty

Hayward - W3H400FDN - 400K BTU, Natural Gas, Pool & Spa Heater - Limited Warranty

Standard Shipping - Ship To Home
Want it today?
Select a store to check stock
Hayward W3H400FDN Universal H-Series, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater delivering durability, reliability, and energy efficiency.
SKU #: 385629
  • Totally Managed Flow for salt-water pools
  • Finn Plate heat exchanger
  • Fire Tile for trapping heat
  • Silicon nitride ignition system
  • 110V or 220V
  • High and low voltage connections
  • Digital LED display
  • Low NOx certification
  • Cupro-Nickel Heat Exchanger ensures compatibility with almost all pools
  • 83-84% industry-leading thermal efficiency
  • Choice of left-side or right-side electric, gas and water connections (delivered right-side by default)
  • 3/4" Gas Connection at heater
  • 2" or 2-1/2" Plumbing Connections
  • Dimension 36" Width x 30" Depth x 24" Height
  • Online SKU replacement for In-Store SKU: H400FDN
In Stock