How many of you have had a tank in the garage of your home, in the middle of winter? I'll be moving into our first home next week and won't have the new 180gallon set up in time to move the current tank over. I'll need to set it up in the garage, but am concerned that my 300W heater won't be able to keep up. The garage in not insulated, and the floor has a slight slope to it. I plan to put the 100gallon on the slope and shim it up, and leave it there for at least 3 weeks maybe 4.