Description

Product Overview

The Hayward Universal HC Series Dual Fuel Gas Pool Heater delivers powerful, efficient, and environmentally compliant heating for large residential pools and spas. Rated at 400,000 BTU, this heater features dual-fuel capability, allowing operation on either natural gas or propane. Built with Hayward’s corrosion-resistant design and low-NOx technology, the HDF400 offers dependable performance, fast heat-up times, and long-term durability across a wide range of climates.

Ideal For

Large residential in-ground pools and spas
New pool builds or heater replacements
Installations requiring dual-fuel flexibility (natural gas or propane)
Areas with low-NOx emissions regulations
Pool owners seeking fast, consistent heating

Key Features

400,000 BTU Heating Power: Delivers rapid heat-up and consistent temperature control for pools and spas.
Dual Fuel Capability: Compatible with both natural gas and propane, offering flexible installation options.
Low-NOx Compliant Design: Meets strict air quality standards for environmentally sensitive regions.
Cupro-Nickel Heat Exchanger: Provides superior corrosion resistance, ideal for saltwater and chemically demanding pools.
Universal Plumbing Connections: Designed for easy installation and replacement of existing heaters.
Durable, Rust-Resistant Cabinet: Built to withstand outdoor environments and harsh weather conditions.
Digital Electronic Controls: Simple, intuitive interface for precise temperature management.

Benefits

Fast, Efficient Heating: Quickly brings pool and spa water to your desired temperature.
Fuel Flexibility: Choose the fuel source that best fits your setup and availability.
Long Equipment Life: Corrosion-resistant components help extend heater lifespan.
Environmentally Responsible: Low-NOx operation supports cleaner air quality.
Reliable Performance: Designed for consistent operation season after season.

Customer-Facing Q&A

Q: Can this heater be used for both pools and spas?
A: Yes. The HDF400 is designed to efficiently heat both residential pools and attached spas.

Q: Does this heater support both natural gas and propane?
A: Yes. The dual-fuel design allows operation on either natural gas or propane, depending on installation configuration.

Q: Is this heater compatible with saltwater pools?
A: Yes. The cupro-nickel heat exchanger provides enhanced corrosion resistance, making it suitable for saltwater systems.

Q: Does this heater meet emissions requirements?
A: Yes. The Universal HC Series is low-NOx compliant and approved for use in areas with strict emissions standards.