Pentair 461059 MasterTemp Pool & Spa Heater

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.

Key Features

• Supplied under part number 461059 for exact-match ordering.

• BTU rating: 125K BTU.

• Sized by BTU output — match the rating and fuel type to your existing unit.

• Ships from our US warehouse with tracking on dispatch.

Specifications

Brand: Pentair

Manufacturer part number: 461059

Category: Pool Heaters

Condition: New

BTU rating: 125K BTU

UPC / GTIN: 788379859930

Shipping weight: 128 lb

Frequently Asked Questions

What part number is this pool heater?

This item is supplied under part number 461059. Match that number against your equipment's parts diagram before ordering.