top of page

Home >> Pool Heaters >> Pentair ETI High Efficiency 400 Heater

ETI 1.jpg

Model # 461113

Pentair ETI 400 High Efficiency Heater

Call for Pricing

ETI 400 Manual


The ETi 400 warms your pool effectively and quickly, speedily reaching your desired temperature. The ETi 400 is equipped with the industry-exclusive TitanToughTM Direct-Fire Titanium Heat Exchanger, the toughest heat exchanger ever created. And with a thermal efficiency of 96 percent, more of each dollar you spend goes directly toward heating your pool. When combined with an easy-to-install design and a whisper-quiet noise level, the ETi 400 can keep your backyard sanctuary warm and cozy for years to come.


  • Corrosion-resistant TitanTough Direct-Fire Titanium Heat Exchanger is the strongest heat exchanger ever built—for years of high-quality, trustworthy warmth.

  • Thermal efficiency of 96 percent, the greatest in its class. For every dollar of natural gas fed into the heater, 96 cents directly heats your pool, ensuring that you get the most for your money.

  • Flexible installation features, including gas line connection orientation possibilities.

  • For user convenience, quick access to the keypad controller is provided.

  • Large detachable panels facilitate access to the heater's interior components.

  • 3-year warranty on components and labor.

Pentair mastertemp pool heater

bottom of page