I completely agree on the insulation first... last year (before
insulation) my garage temp was the same as outside ambient temp..
I've installed 3-1/2"insulation in walls 6" in ceiling and 1/4"
plywood walls and ceiling. Garage is still unheated (that's this
years project). This last week with temps down in the teens and
twenties for a week...and the thermometer in the garage never got
below 40. My theory ??? The sun is doing that much heating and the
insulation is holding it in..
I think with a small 15,000 BTU wall mount gas heater..toasty will be
no problem...might even leave in on low all winter.
Insulation will never be wasted money !
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