Pentair MasterTemp Pool & Spa Heater 461059 – 125K BTU Natural Gas, High-Performance Heating

The Pentair MasterTemp 461059 Pool & Spa Heater provides 125,000 BTU of reliable natural gas heating designed specifically for small to medium residential pools and spas. Built for energy-efficient operation and consistent performance, the MasterTemp series delivers fast warm-ups, quiet combustion cycles, and durable construction that stands up to outdoor environments.

Equipped with a high-efficiency heat exchanger and intuitive digital temperature controls, the 461059 model delivers comfortable water warmth while optimizing fuel use. Its compact footprint and straightforward installation make it a great choice for tight equipment pads, retrofit projects, or adding heating capability where space is limited.

Pentair MasterTemp 461059 Pool & Spa Heater Compatibility

• Designed for natural gas pool and spa heating systems using standard residential fuel connections.

• Works with 2” plumbing common to most residential pool and spa heater installations.

• Compatible with Pentair automation systems including IntelliCenter®, EasyTouch®, and IntelliTouch®.

• Suitable as a direct replacement for other 125K BTU natural gas heaters with similar plumbing and electrical requirements.

• Integrates easily with variable-speed pumps, heaters, controllers, and pool automation setups.