Pentair MasterTemp 125

Gas Heater

Introducing the high-efficiency, high-technology heater for bodies of water up to 30,000 litres.

At a remarkably affordable price, the new MasterTemp® 125 heater finally 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 heater offers 82% thermal efficiency - among the highest of any heater in its category.

You’ll love the convenience and simplicity of its digital display which can be rotated for convenience suiting all installations. Plus, unlike other heaters, the MasterTemp® 125 heater is so compact and lightweight, it makes for quick installation by your pool pro and saved time means saved money.

It’s time to step up to the high-efficiency and advanced features that only the MasterTemp® 125 heater can deliver!

Features
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.
Energy efficiency, affordability, and best-in-class features. You won’t find a more affordable energy-efficient heater with all the advanced features of the MasterTemp® 125 heater. Its state-of-the-art pre-mixed combustion technology delivers 82% thermal efficiency to keep operating costs low throughout the year. The advanced digital display/controller gives you more information and better control. And its entire lightweight, compact design makes the MasterTemp® 125 heater easier to install than any other heater in its class - saving time and money.
An Eco Select® brand product. The MasterTemp® 125 heater has earned the Eco Select brand distinction as one of the “greenest” and most efficient choices from Pentair. Eco Select products are designed to help you save energy, conserve water, eliminate or reduce noise, or otherwise contribute to a more environmentally responsible equipment system.

Time to Heat (in hours)
Spa Size (Litres)	Temperature Rise (degrees celcius) with cover
Spa Size (Litres)	5°	10°	15°	20°	25°	30°
1000	0.2	0.4	0.6	0.8	1.0	1.2
2000	0.4	0.8	1.2	1.5	1.9	2.3
3000	0.6	1.2	1.7	2.3	2.9	3.5
4000	0.8	1.5	2.3	3.1	3.9	4.6
5000	1.0	1.9	2.9	3.9	4.8	5.8
10000	1.9	3.9	5.8	7.7	9.7	11.6
15000	2.9	5.8	8.7	11.6
20000	3.9	7.7	11.6
25000	4.8	9.7
30000	5.8	11.6