Balboa 15" 4.0kW Remote Auxiliary Heater (26-58352)

Balboa 15" 4.0kW Remote Auxiliary Heater (26-58352) is intended for spa systems that place supplemental heating capacity away from the primary control enclosure. The remote auxiliary configuration makes correct identification especially important because heater location, plumbing routing, electrical connections, and control compatibility all affect whether the replacement will integrate properly.

Auxiliary heaters serve a different role from the primary heater in a spa pack. They are used where the system was designed to add heating capacity through a dedicated secondary assembly, so replacing one requires more than matching kilowatt output alone. The control interface, plumbing sequence, available flow, and electrical requirements all need to correspond with the original installation.

The 4.0kW rating is a common full-size spa heating specification, but output alone does not determine interchangeability. Two 4.0kW heaters may use different control families, sensor arrangements, wiring interfaces, mounting details, or plumbing positions. Verifying those details before installation helps prevent an otherwise similar-looking heater from becoming an incorrect replacement.

Proper fitment begins with verification. Compare the existing heater’s part number, length, rated output, sensor or control connections, plumbing orientation, and electrical requirements before ordering. Spa heaters are not universally interchangeable, and taking a few minutes to confirm these details can reduce installation delays, unnecessary returns, and repeat service calls.

Once correctly matched and installed, the Balboa 26-58352 can help restore dependable water heating, steadier temperature maintenance, and the day-to-day comfort expected from a properly operating spa.

• Remote auxiliary configuration for systems designed with supplemental heating
• 4.0kW rated heating output
• 15" heater configuration for correct physical fitment
• Match original electrical, plumbing, and control-system requirements
• Supports dependable temperature recovery when correctly matched and installed