Pentair MasterTemp ASME HD 400 Heater Natural Gas, 400K BTU | 461021Product Overview The Pentair MasterTemp ASME HD 400 Natural Gas Heater is a heavy duty, high performance pool and spa heater designed for demanding residential and commercial applications. With 400,000 BTU heating capacity, ASME certification, cupro nickel tubing, and natural gas operation, this heater is built to deliver fast, reliable heat up performance for pools and spas that require durable, efficient heating equipment. Designed with Pentairs

Designed to float

It is especially well suited for:

This bundle is commonly listed without an IntelliChlor salt chlorine generator

Always verify the heater model and part number before ordering to ensure proper compatibility

Does this include the OmniHub system

Q: Is this a single-speed or variable-speed motor

helping reduce equipment pad noise during daily circulation

This is an electrical automation load center and should be installed by a qualified pool professional or licensed electrician familiar with pool equipment wiring and local electrical codes

Q: Where can this remote be installed

Part PSV2S2 is a practical replacement or installation valve for builders

Why it matters: Unmatched convenience and system visibility

Professional installation is recommended for safety and proper heater operation