Pentair MasterTemp 400 High Performance Pool & Spa Heater | 400,000 BTU, Natural Gas | EC-462028

The Pentair MasterTemp 400 (EC-462028) unleashes a massive 400,000 BTUs of raw heating power, making it the ultimate high-performance upgrade for large in-ground pools and custom spa setups. Operating on municipal Natural Gas (NG), this powerhouse heater ensures your water reaches the perfect temperature with lightning-fast speed, completely eliminating the long wait times normally required to heat up a chilly spa or extend your swimming season into the colder months.

Despite its industry-leading heating capabilities, the MasterTemp 400 is engineered with a remarkably compact footprint. It completely outshines older, bulky heaters by utilizing an advanced pre-mixed gas combustion system. This not only ensures whisper-quiet operation but also maximizes thermal efficiency, transferring heat into your water much faster while keeping your utility bills tightly controlled.

Features

Massive 400K BTU Heating Power: The highest capacity available for residential pools. With 400,000 BTUs and a highly efficient copper fin heat exchanger, this unit transfers heat with incredible speed. It is the perfect choice for large pools or for spa owners who want their hot tub fully heated and ready to use in a fraction of the time.

Compact & Space-Saving Design: Despite housing massive heating power, this unit measures in at a fraction of the physical size of traditional pool heaters. It easily fits onto tight equipment pads or into limited backyard spaces, while its streamlined construction makes handling and positioning significantly easier.

Advanced Digital Display: Features a user-friendly digital control pad that makes setting your exact desired temperature as easy as adjusting your home thermostat. The entire display panel can be easily rotated, allowing you to monitor and adjust the heater perfectly regardless of how it is oriented on the equipment pad.

Eco-Friendly & Low NOx: Certified for low emissions, this heater meets or exceeds the strictest air quality standards in the country. You get maximum, reliable heating performance while drastically minimizing your environmental footprint.

Corrosion-Resistant Exterior: Housed in a tough, rustproof composite exterior enclosure. It is specifically designed to withstand intense UV rays, severe weather, and the highly corrosive environment of a pool equipment pad, ensuring the internal components remain protected year after year.

Natural Gas Calibrated: This specific model is factory-calibrated to run exclusively on Natural Gas (NG), making it the seamless choice for homes already equipped with municipal natural gas lines running to the backyard.

Specs