no, not yet. i am doing this project backward. i have a mini fridge that is ripe for making into a small fermentation chamber, but i need some decent weather and motivation to do it. i'm gonna just make a moderate sized extension so i can get good lager temp control and ferment 2 at a time... i have the temp control unit hooked up to my fridge keeping a nice consistent 4.3 deg celsius
(40 deg F)
it doesn't seem to have any problem powering up the fridge or the space heater i plugged into the 'heat' side. so i have no doubt whatsoever that it will perform exactly what i want it to. the 0.3 deg C differential with the adjustable compressor delay is really nice, the programming is very easy and it's simple to wire up (which works well for me).