I use a SPAL FAN-PWM.
Or, you could put a snap switch in (on @ 200f off @ 185f). Just have the snap switch trigger a relay. Pretty simple. I've done both and the snap switch works good and it's a lot cheaper than the SPAL.

You can mount the snap switch by installing it in the thermostat housing. There is an extra area that one can drill and tap.
If you decide to do it, take pictures and let us know how it works.
Everet <img src="/forums/images/graemlins/patriot.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />


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