Pentair MasterTemp 125 - Natural Gas Pool Heater

Pentair MasterTemp 125 - Natural Gas Pool Heater


            Pentair MasterTemp 125  125,000 BTU Pentair MasterTemp Natural Gas Pool Heater Ideal for In and Above Ground pools or Large Hot Tubs!   Read More
  • Shipping Weight: 300kgs
  • Manufactured by: Balboa
-25 Units in Stock
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Item Description


Pentair MasterTemp 125

 125,000 BTU

Pentair MasterTemp Natural Gas Pool Heater

Ideal for In and Above Ground pools or Large Hot Tubs!



MasterTemp 125 Natural Gas

Manufactured by Pentair, Northern Lights Group now offers the most advanced natural gas heater available on the market. 

This heater is a compact, self-contained unit with an output of 125,000 BTU's. With a thermal efficiency rating of 82%, the MasterTemp 125 is the most efficient heater in it's class. This high efficiency rating keeps operating cost low by directing more of the heat it produces into your pool or hot tub instead of the outside air.  Recommended for heating up to 15,000 Gallon pool or hot tubs.

MasterTemp features a patented thermostatic bypass valve which minimizes condensation-related calcium scaling and corrosion. Minimizing condensation-related calcium buildup maintains heat transfer efficiency, quietness, and dependable operation. This heater's design includes a bronze header system that prolongs life, and union connection fittings for fast draining and easy winterization.

Featuring the first ever rotating digital display offered in its class, the MasterTemp 125's display provides valuable information at the touch of a button. This heater's lightweight and compact design makes the MasterTemp 125 heater the easiest to install in its class, which reduces install time and labor costs.

This natural gas heater is equipped with a direct spark ignition for automatic control, and designed to be connected to either a 230 volt or 120 volt 60 Hz power source (field changeable).

The MasterTemp 125 is an Eco Select Product!  Eco Select products are designed to save energy, conserve water and reduce noise resulting in your pool or hot tub being more environmentally friendly.


  • 82% energy efficiency is highest in its class.

  • High-performance, affordable heating with premium features.

  • 1-1/2" plumbing – ideal for smaller bodies of water up to 15,000 gallons.

  • Pre-mixed combustion technology for ultra-fast heat-up.

  • Rotating digital display - the first in its price category - provides fast, easy access for programming and monitoring.

  • Certified for low NOx emissions.

  • Certified for outdoor and indoor - vented installations.


  • 125,000 BTU rating

  • 1 1/2" plumbing connections

  • Compact L31.5" x W21" x H23"

  • Weight 80 Lbs

  • 120/240 VAC

  • 3/4" gas line up to 50 feet from source


Installation Diagram

natural gas pool heater 125


natural gas pool heater 125


Please call us any time for more information 1(800) 759-8990!


natural gas pool heater 125


Payment Details

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 No taxes to US residence!

Shiping and Handling

Please allow 4-6 days for shipping via UPS Ground to USA or Canada.  You will be emailed a tracking number to the email address you provide us.  Expedited Shipping services are available!


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