This winter in my garage I guessing it will get no colder than 30 degrees in the coldest of winter.I read that heat tape will heat up as much as 20 degrees more that the ambient air temp.So how is it this will keep at a constant 80-90 degrees without adding any other heat source.Is the rack system so efficient that it wont loose that much heat being its like a box in a box.Just looking at my options as now I'm thinking of energy efficiency as I will be having to make larger cages here soon as my bloods are growing.Using my 4x2x18" melamine cages I need to use a uth and a 150-250w ceramic heat emitter which after 4-6 of these, price and energy is lost.Any comments or ideas will be greatly appriciated. Thanks, Ethan


