MasterTemp 125

The high-efficiency, high-tech heater for bodies of water up to 30,000L!  

The remarkably affordable NEW MASTERTEMP® 125 gas heater gives you the 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 gas heater offers 82% thermal efficiency -among the highest of heaters in its category. It’s 1-1/2” (40mm) plumbing is ideal for smaller applications, including aboveground pools, spas and in-ground pools up to 30,000 litres. Featuring a rotating display which places controls front and centre for any installation orientation.

The MasterTemp® 125 gas heater provides valuable information conveniently and at the touch of a button. Plus, its lightweight, compact design makes the MasterTemp® 125 gas heater easier to install than any other heater in its class - reducing labour costs which saves you more money.


  • Easy-to-read digital display makes programming and monitoring a cinch
  • Rotating display places controls front and center for any installation orientation
  • Lightweight, corrosion and UV-resistant enclosure  
  • 40mm (1-1/2”) plumbing is ideal for bodies of water up to 30,000L





Spare Parts

Technical Data Sheet