On Thu, 2011-02-10 at 10:14 -0500, Pete Smith wrote: > OTOH, if the heater's thermostat is a standard thermo-mechanical type, > you probably don't need to know all that. I tracked down a noise source > a few years ago that turned to be an older, heated dog dish. Why would anyone heat a dog Dish? Just curious.. -- 73 Brendan EI6IZ