Pentair – MasterTemp, Low NOx, 250K BTU, Natural Gas, Pool & Spa Heater

The Pentair EC-462026 “MasterTemp” pool and spa heater offers high performance heating with a focus on reliability, efficiency and reduced emissions. With a 250,000 BTU output and certified Low NOx combustion, this natural gas unit is well suited for medium-to-large residential pools and spas that demand rapid heating and durable, long-term operation. Its compact design, digital interface and sturdy construction make it an excellent choice for both new installations and retrofits.

Key Features

• 250,000 BTU heating capacity for robust temperature rise. Low NOx certified combustion for better environmental performance.

• Digital LCD display with diagnostics and user-friendly controls.

• Compact footprint for easier installation in tight equipment pads.

• Durable exterior shell and corrosion-resistant materials suited for outdoor environments.

• Quick-change orifice design for easy conversion of gas types (if required).

• Suitable for both indoor and outdoor installation options (with proper venting).

Benefits

• Rapid warm-up of your pool or spa ensures you spend more time enjoying and less time waiting.

• Lower emissions through Low NOx compliance help meet stricter regulatory requirements and are more eco-conscious.

• The intuitive digital controls and diagnostics make operation and service easier for homeowners and technicians alike.

• Because the heater is compact and designed for retrofit, it can be installed in existing equipment setups with fewer complications.