The Pentair MasterTemp 125 Low NOx Pool Heater delivers premium heating performance and high energy efficiency for pools and spas up to 56,781 L. Built with advanced pre-mixed combustion technology, it ensures ultra-fast heat-up times so your water reaches the ideal temperature quickly.
Featuring an intuitive digital display, this compact natural gas heater simplifies operation, programming, and temperature monitoring. Its class-leading 82% thermal efficiency helps lower overall operating costs while providing dependable comfort for smaller bodies of water.
Key Features
| Brand | Pentair |
| Model Line | MasterTemp 125 |
| Product Type | Pool & Spa Heater |
| BTU Rating | 125K |
| Gas Type | Natural Gas |
| Location | Indoor/Outdoor |
| Elevation | 0 – 2,743.2 m |
| Ignition | Electronic |
| Plumbing Size | 3.8 cm (1-1/2 in) |
| Efficiency Rating | 82% |
| Maximum Pool Capacity | 56,781 L |
| Emission Rating | Low NOx |
Highlights
- 82% energy efficiency rating for lower operating costs
- Pre-mixed combustion technology ensures fast water heat-up
- User-friendly digital display for simple temperature adjustments
- Low NOx emissions design suitable for eco-conscious operation
- Engineered for pools and spas up to 56,781 L with 3.8 cm plumbing
Compatibility
Compatible with standard 3.8 cm (1-1/2 in) pool and spa plumbing systems on bodies of water up to 56,781 L (15,000 gallons).
What’s included
- 1 x Pentair MasterTemp 125 Low NOx Pool Heater – EC-462025
- 1 x Instruction Manual
Frequently asked questions
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