hi i have just got a electic spa heater
i intend to put it inline to one of my existing pumps
the heater has a electric socket on the side of it and a air switch thing on the other end
my question is what are these for
the pump already has a air switch oh and the heater has a heater dial on one end
regards wilkie

 

Are you sure it is a heater only and not an 'all inclusive' spa pak?

 

sorry i dont know what one of them is
could you pls give me a out line of what it is you are talking about
i got it of e-bay
any help would be good thanks
reagards wilkie

 

A heater is just that.. heater only.

A spa pak generally includes an electrical plug to plug in the motor, air switch connections, contactors for the heater, and possibly the heater itself.

Someone qualified can open it up and determine the components and what they do. It sounds like you have a spa pak. Question is, is there a heater included inside?