The Hayward H250FDPASME Universal H-Series ASME Heater is a commercial-grade 250,000 BTU propane gas unit designed for exceptional durability, efficiency, and performance. Built specifically for commercial aquatic facilities, this Low NOx certified heater combines high-end construction materials with industry-leading hydraulics to deliver reliable, energy-efficient heating in demanding environments. Featuring a Cupro-Nickel Finn Plate™ heat exchanger, bronze header, and flexible installation options, the H-Series ASME heater is engineered for long-lasting commercial operation and seamless integration into both new and existing systems.

Key Features

• Equipped with a patented Cupro-Nickel Finn Plate™ heat exchanger and bronze header for superior corrosion resistance, heat transfer efficiency, and extended service life.

• Low NOx burner design reduces emissions while maintaining strong heating performance and rapid temperature rise for commercial applications.

• ASME certified and includes a factory-installed ASME pressure relief valve to meet commercial safety and compliance requirements.

• Flexible installation with independent left or right-side electrical, plumbing, and gas connection capability, ideal for diverse equipment room layouts.

• Features 2" x 2½" CPVC flanged connections to support high-flow commercial hydraulics and reduce system backpressure.

• Electronic lock-out feature prevents unauthorized changes to configuration settings, enhancing operational security in public or high-traffic facilities.

• Simplified servicing with single front-panel access, easy gas valve adjustment mechanisms, and fuse-protected circuit boards for quick voltage conversion.

• Compatible with additional models in the Universal H-Series lineup, including 250k, 400k, and 500k BTU propane or natural gas versions.

• Optional Texas Heater Kits available to meet specialized regional installation requirements.

• Commercial-grade construction ensures year-round reliability, long-term efficiency, and reduced maintenance downtime.

Product Overview
The Hayward H250FDPASME Universal H-Series ASME Heater is engineered to deliver dependable, energy-efficient performance for commercial pools, spas, and aquatic facilities using propane gas. Designed with a Cupro-Nickel Finn Plate™ heat exchanger and bronze header, it withstands harsh commercial water chemistry and demanding operational conditions while delivering superior heating efficiency. Its flexible left-or-right connection options, high-flow CPVC flanges, and easy-access front panel make installation and maintenance straightforward for technicians and facility managers.

With its Low NOx emissions profile, the heater supports environmentally responsible operation without compromising heating speed or performance. The system’s robust commercial-grade construction and advanced safety features—such as the electronic lock-out and ASME pressure relief valve—ensure reliable operation across seasons. Whether used in new builds or retrofit applications, the H250FDPASME provides consistent, fast, and efficient heating, making it a trusted solution for commercial facilities seeking durability, safety, and long-term value from their pool heating equipment.