A friend gave me a Tiger River Spa Manora (# M 461379, 1997). This is a 115 V model and it is not possible to run the jet pump and heater at the same time. I have a 230 V hook up with GFCI on my deck and as we live in a colder climate I would like to convert the unit to 230 V. My question is if it is possible to install the bigger heater for 230 V with a separate power supply but still controlled by the Spa controller? Or can I connect the currently installed heater to a separate 115 V power supply? Any other ideas are also highly appreciated.

Dirk