ok I did a little more research. The heater as stated by shadow man has a thermocouple. The pilot light heats two pieces of different metals twisted together creating a small electrical current, enough to operate the switch to turn on the heater. It also has a flow sensor to tell it when it can turn the heat on. Now, they problem is that I still need to turn off the heater about 10 minutes before the pump turns off. I do believe what I need is the intermatic timer that has a firemans switch (as mentioned) I just need to find a guy that has done spa/pool work... anyone know anybody north of toronto???
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