Swimables SW-41-007 generic thermal regulator for MasterTemp and Max-E-Therm heatersSwimables Generic Thermal Regulator for MasterTemp and Max-E-Therm Heaters, SW-41-007 In stock$6199
Swimables SW-41-007 generic thermal regulator for MasterTemp and Max-E-Therm heaters
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Swimables Generic Thermal Regulator for MasterTemp and Max-E-Therm Heaters, SW-41-007

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$6199
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Quick overview

  • Generic replacement A Swimables aftermarket part, not the original manufacturer item, offered as an alternative to the OEM regulator.
  • For MasterTemp and Max-E-Therm Listed for the MasterTemp and Max-E-Therm heater families.
  • Controls flow through the exchanger The thermal regulator meters how much water passes through the heat exchanger rather than around it.
  • Protects the exchanger Holding the exchanger in its working temperature range is what keeps condensation and thermal shock off the tubes.
  • A cheap part with expensive consequences A stuck regulator is small, but the exchanger it protects is the most costly part of the heater.
  • Part number SW-41-007 The Swimables catalog number, useful when cross referencing against the OEM regulator.
Full description and specifications ↓

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Product details

The Swimables SW-41-007 is a generic thermal regulator for MasterTemp and Max-E-Therm pool heaters. It is an aftermarket part rather than the original manufacturer item, offered as an alternative when the OEM regulator is being replaced.

What the regulator does

The thermal regulator meters how much of the incoming water actually passes through the heat exchanger and how much bypasses it. That balance is what holds the exchanger in the temperature range it was designed for, whatever the pool water is doing.

Why it matters more than its size suggests

When the regulator sticks, the exchanger runs outside that band. Too cool and combustion gases condense inside the heater, which attacks the tubes from the outside. Too hot and the metal takes thermal stress it was not meant to take repeatedly. Either way the part that suffers is the heat exchanger, the most expensive component in the heater, which is why a suspect regulator is worth changing rather than watching.

Specifications
Brand Swimables
Manufacturer part number SW-41-007
UPC 810108820321
Type Thermal regulator
Fitment Generic replacement for MasterTemp and Max-E-Therm heaters
Shipping weight 0.13 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Is this an OEM part?
No. It is a Swimables generic replacement offered as an alternative to the original thermal regulator. The OEM regulator is sold under its own part number.
What does the thermal regulator do?
It controls how much water is routed through the heat exchanger. That is what keeps the exchanger in the temperature band it is designed to run in.
Which heaters does it suit?
It is listed for MasterTemp and Max-E-Therm heaters.
What goes wrong when the regulator sticks?
The exchanger runs outside its intended temperature range. Running too cool causes condensation inside the heater, and both extremes shorten the life of the exchanger.
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