Pentair MasterTemp ASME Heater Natural Gas, 250 ASME HD, 250K BTU

Product Overview

The Pentair 461020 MasterTemp ASME 250 HD Pool and Spa Heater is a commercial-grade natural gas heater designed to deliver fast, efficient heating for demanding pool and spa applications. With a 250,000 BTU input rating, this heater provides dependable heating performance in a compact, quiet, and user-friendly design.

Built with a heavy-duty cupro-nickel heat exchanger and ASME-certified construction, the MasterTemp 250 ASME HD is made for commercial and high-use applications where durability, corrosion resistance, and reliable performance are essential. It is commonly used for commercial pools, spas, apartments, condos, hotels, motels, schools, parks, and high-end residential pool systems.

Ideal For

This heater is ideal for commercial pool operators, pool builders, service professionals, and property owners who need a durable 250K BTU natural gas heater with ASME certification and heavy-duty cupro-nickel performance. It is especially useful for high-use pools, chemically demanding water conditions, saltwater systems, and installations requiring commercial-grade heater construction.

Key Features

250,000 BTU Heating Performance: Provides 250,000 BTU of natural gas heating power for fast pool and spa temperature recovery. This makes it suitable for many commercial, semi-commercial, and demanding residential pool and spa applications.

ASME-Certified Heavy-Duty Construction: Built to ASME standards for commercial-grade heater applications. ASME certification is commonly required for many commercial pool and spa installations, depending on local code and facility requirements.