Mainly my question is how do you go about figuring if its more cost efficient to heat the entire room verse the individual cages. My collection has grown to the point where I'm looking to get a rack system. I guess my question is do I just put in a space heater and see how much energy it takes to keep the room up to temp and compare that to what I was using heating the cages individually or can I get a good idea by doing some math, measuring the room excreta.

With All Due Respect,

Errabal