Heater Manifold Assemblies

Spa manufacturers source their components from third party manufacturers. Therefore it is not possible to know which heater type is installed simply by the brand of the spa.

Only through actually looking at the heater can you determine the correct heater sizing and type for replacement.

Some important factors to consider when replacing a flow through type electrical spa heater….

type of heater
heater voltage (120V or 240V)
length of the heater,
kilowatt rating of the heater element (kw)
whether or not it has a pressure switch mounted to it
mounting flange – (how the heater element attaches to the heater manifold or housing)

Typically the distance between the two terminals is 1 ¼”.