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Pentair 461112 ETi 250 High-Efficiency Heater, Natural Gas, 250K BTU

SKU 461112
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Heaters are in-stock and available for installation.

Efficiently heat up your pool for comfortable temperatures year-round with the ETi 250. With quick heat-up times and the durable TitanTough™ Direct-Fire Titanium, the toughest heat exchanger material, effectively warm up your pool. A great replacement for the MasterTemp® High-Performance Heater, with the same plumbing alignments to effectively serve your backyard oasis needs. Say goodbye to those after-pool shivers and hello to a cozy and warm backyard spa.

  • Corrosion-resistant Titan-Tough™ Direct-Fire Titanium Heat Exchanger
  • Up to 96% thermal efficiency.1 For every $1 of natural gas that’s piped into the heater, up to 96 cents goes directly to heating your pool, ensuring optimal heating
  • Certified for low NOx emissions 2
  • Certified for Category IV PVC exhaust venting and air intake 3
  • 360° gas line connection options for ease-of-installation
  • 270° control panel orientation options for ease of access.
  • Large removable panels make accessing the heater internals easier
  • Plumbing aligns exactly with MasterTemp® and Max-E-Therm® heaters, making ETi 250 an ideal drop-in replacement on tight equipment pads
  • Three-year parts and labor warranty

*The ETi 400 is 96% efficient. The ETi 250 is 94% efficient when operated on natural gas and is 96% efficient when operated on propane with an available conversion kit. 


  • Brand: Pentair
  • Application: Pool
  • BTU Output: 250,000 British thermal unit
  • Weight: 220 pounds
  • Fuel Type: Natural Gas
  • Phase: Single
  • UPC Code: 788379877491
  • Part Number: 461112 ETi 250 High-Efficiency Heater, Natural Gas


Please Note: This item is available in-store only! Contact us with questions - we can provide product details, stock availability, etc.

Disclaimer: Professional installation is required (not included). Proof of installation by a professional technician is required to validate the factory warranty.

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