Hayward Universal HC Series Dual Fuel Heater with OmniX 275K
The Hayward Universal HC Series Dual Fuel Heater with OmniX 275K combines dual-fuel flexibility with premium OmniX automation intelligence. Engineered for easy drop-in replacement with direct compatibility to Hayward plumbing adapters, and featuring OmniX embedded intelligence for enhanced programmability, advanced diagnostics, and seamless remote connectivity.
Built by Hayward with a durable cupro-nickel heat exchanger, Hayward's Universal Display compatible with Omni, OmniX, and competitive automation systems, compact zero-clearance design, and simple propane conversion. 275,000 BTU outdoor-rated dual-fuel heater. Backed by a 3-year parts and 1-year labor warranty.
⚠️ Professional Installation Required. Pool heater installation involves gas line connections and electrical wiring. Always use a licensed contractor to ensure safety, code compliance, and warranty validity.
Key Features
Dual-Fuel: Natural Gas and Propane
Simple propane conversion — works with both NG and LP without buying separate heaters.
275,000 BTU Output
Mid-range dual-fuel heating with OmniX intelligence — between 200K and 400K BTU.
OmniX Embedded Intelligence
Enhanced programmability, advanced diagnostics, and seamless remote connectivity built in.
Hayward Universal Display
Consistent control experience across Omni, OmniX, and competitive automation systems.
Cupro-Nickel Heat Exchanger
Durable cupro-nickel for long-term reliability and corrosion resistance.
Drop-In Replacement for Any Brand
Engineered for Hayward plumbing adapters — easy replacement for competitors' heaters.
Zero-Clearance Compact Design
Fits even the tightest equipment pads — no wall clearance required.
Advanced Diagnostics
Built-in diagnostics simplify troubleshooting and reduce service calls.
3-Year Parts / 1-Year Labor Warranty
Strong warranty coverage for residential installation.
Who It's For
- Pool owners using Hayward OmniX automation who want dual-fuel flexibility at 275K BTU
- Drop-in replacement installations compatible with existing Hayward or competitor plumbing
- Salt water pools and chemically demanding applications benefiting from cupro-nickel construction
- Compact equipment pads where zero-clearance design is essential
Specifications
Heating Performance
| BTU Output | 275,000 BTU |
| Fuel Type | Natural Gas / Liquid Propane (Dual-Fuel) |
Controls & Automation
| Automation | OmniX Embedded Intelligence |
| Display | Hayward Universal Display |
| Compatibility | Omni, OmniX, and competitive automation systems |
Construction
| Heat Exchanger | Cupro Nickel |
| Wall Clearance Required | Zero |
Physical
| Product Weight | 164 lb |
| Shipping Dimensions | 31 × 24 × 40 in |
| Application | Outdoor |
Approvals & Warranty
| Warranty | 3 Years Parts / 1 Year Labor |
What's in the Box
- Hayward Universal HC Series Dual Fuel Heater with OmniX 275K
- User Manual
Warranty
The Hayward HC Series HDFS275 comes with a 3-year parts and 1-year labor manufacturer warranty. Clearflow Pool Supply is an authorized Hayward dealer and will assist with any warranty service needed.
Downloads
Frequently Asked Questions
What is the difference between the HDFS275 and the HDFS400?
Both are OmniX-enabled dual-fuel HC Series heaters with cupro-nickel heat exchangers and zero-clearance design. The HDFS275 outputs 275K BTU, suited for mid-size pools in the 20,000–30,000 gallon range. The HDFS400 outputs 400K BTU for larger pools. Both share the same 3-year parts and 1-year labor warranty.
How does propane conversion work?
The HDFS275 ships ready for natural gas. Simple propane conversion allows your licensed installer to switch fuel sources at installation time or later — making it one of the most flexible heaters available.
What is OmniX?
OmniX is Hayward's advanced pool automation platform. Embedded in this heater, it enables enhanced programmability, advanced diagnostics, and seamless remote connectivity. The Universal Display also ensures compatibility with standard Omni systems and competitive third-party automation platforms.
Is this outdoor-only?
Yes. The HDFS275 is rated for outdoor installation only.
Does this heater require professional installation?
Yes. Gas heater installation involves connecting to a natural gas or propane supply line, electrical wiring, and proper venting. A licensed pool contractor must perform the installation to ensure safety, local code compliance, and warranty validity.