Friction heated Spa Retrofit.

Installing a conventional 2 speed pump, a flow through heater and a new controller into a friction heated spa. Some "economically priced" spas don't actually have heaters. They rely on special friction fittings and scrubbing waste heat from the jet pump. This does work but, it's not very efficient, it is also very noisy and can sometimes lead to the spa overheating. Because this is a "Plug N Play" type of spa that can be plugged into a standard 115volt 15amp outlet. The maximum load we could have is 12 amps. (motor and heat loads require 125% capacity on the supply 1.25 x 12=15 ). The heater is 1000 watts it was drawing 8.37amps @ 120 volts. The pump on low speed was drawing 3.4 amps. for a total of 11.77 amps. The pump draws 10 amps on high speed. The heater and hi speed cannot run simultaneously. The computer is programmed to shut the heater off when high speed is activated. That is demonstrated at the end of the video, when Hi Speed is activated the heat icon, on the LCD starts to flash, indicating that the computer has turned off the heater.