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Pentair 125K BTU, Natural Gas MasterTemp Electronic Heater (461059)

SKU#: 461059
You save 17%
Availability: In Stock


Pentair 125K BTU, Natural Gas MasterTemp Electronic Heater (461059)

The MasterTemp 125 heater by Pentair gives you energy savings and advanced operating features that were only available from much larger heaters. With its revolutionary pre-mixed gas combustion technology, the MasterTemp 125 heater offers 82% thermal efficiency – the highest of any heater in its class. You will love the convenience and simplicity of its digital display – the first ever offered on the market in its category. Unlike any other heater, the MasterTemp 125 heater is so compact and lightweight, it makes for quick installation by your pool professional. The MasterTemp 125 heater is part of the Eco Select brand by Pentair being one of the most eco-friendly and most efficient heater choices.

For Air intake kit, please order part # 474845


  • Energy efficient: State-of-the-art, pre-mixed combustion technology delivers 82% thermal efficiency

  • Affordable: Such advanced technology keeps operating costs low, which makes it more affordable for the owner

  • MasterTemp 125 has earned the Eco Select ® brand distinction. Eco Select products help save energy, conserve water, reduce noise and contribute to be environmentally responsible equipment system

  • Certified for low NOx emissions

  • Corrosion and UV-resistant enclosure

  • Certified for outdoor and indoor installations


BTU Rating125,000
Pool TypeSmall in-ground pools up to 15,000 Gal, Above ground pools, Spas
Water Connection1 ½” Plumbing
Dimensions L 31.5” x W 21” x H 23”
Weight80 Lbs
Electrical connection120/240 V
Gas Connection¾” gas line up to 50’ from source


Pentair warrants its products to be free from defects in material and/or workmanship for a period of sixty (60) days (parts only) from the original date of purchase and/or installation. For Extended 2-Years warranty, refer to the Warranty Card in the Manuals section.

Pentair 125K BTU, Natural Gas MasterTemp Electronic Heater (461059) Reviews

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