Hayward W3H200FDN Universal H-Series Natural Gas 200,000 BTU Low NOx

Hayward W3H200FDN Universal H-Series Natural Gas Pool Heater – 200,000 BTU Low NOx

The Hayward Universal H-Series W3H200FDN provides powerful 200,000 BTU heating performance for residential in-ground swimming pools and spas. This natural gas heater is engineered for efficient heat transfer, rapid pool heating, and dependable operation across a wide range of pool environments.

The heater uses a Cupro-Nickel heat exchanger combined with Hayward’s patented hydraulic design to improve durability and reduce erosion caused by high water flow rates. This construction allows the heater to perform reliably in saltwater pools and systems with aggressive water chemistry. :contentReference[oaicite:1]{index=1}

High-Performance Residential Pool Heating

The Universal H-Series platform features fan-assisted combustion and digital electronic controls for accurate temperature management. Its universal installation design with CPVC union connections allows quick integration with modern pool plumbing systems.

Key Features

• 200,000 BTU natural gas heating capacity
• Universal H-Series Low NOx emissions design
• Cupro-Nickel heat exchanger for corrosion protection
• Fan-assisted combustion system for consistent heating
• Electronic ignition and LED diagnostic control panel
• Polymer header protects against erosion from high flow rates
• 2 in x 2.5 in CPVC union plumbing connections
• Designed for in-ground pools and spas