I had time to try something today, I decided to build a warming station. I used 4 pcs of 16x16 ceramic tile,1 standard extension cord,about 11 linear ft of self regulating low wattage heat tape, several pcs of shrink wrap, tape( i used fiberglass reinforced aluminum tape),and about an hour of time.It is not finished(need to seal it) but done enough to test it out, it's heating 10 to 12 degrees above room(floor) temperature, which is what I expected from previous projects using this type of heat tape.I wasn't looking for hot, just want to raise the bottom temps a little.Len