Hayward, Universal HC Series 275K Dual Fuel Heater with OmniX

Universal HC Series dual-fuel gas heaters are engineered for easy drop-in replacement, with direct compatibility to Hayward plumbing adapters. At the center is Hayward’s Universal Display, delivering a consistent, intuitive control experience across Omni®, OmniX®, and competitive automation systems. With OmniX embedded intelligence, the heater provides enhanced programmability, advanced diagnostics, and seamless remote connectivity. A durable cupro-nickel heat exchanger ensures long-term reliability, while the compact, zero-clearance design fits even the tightest equipment pads. Simple propane conversion makes installation faster and easier than ever.

Features and Benefits

• Top-access design eliminates the need to remove side panels and kneel during service

• Quick-access reversible top easily swaps plumbing from right to left while providing access to gas shutoff, voltage selection and more – all via a single fastener

• Cupro-nickel heat exchanger helps protect against corrosion and premature wear from challenging or unpredictable water chemistry

• Compact, lightweight design makes installation easy in any environment

• Low Nox emissions meet clean air quality standards

• Easy-out gas conversion allows for simple in-field conversion between natural gas and propane

• Integral tie-down connections in the base makes installation easy to secure to the equipment pad with no additional hardware

• Backwards Compatible OmniX Retrofit Kits available for existing Universal HC Series gas heaters

• OmniX Gateway: With the additional OmniX Gateway, control your pool equipment from anywhere to allow for remote access