Quote:
Originally Posted by ROLLGUY
Is your garage walls and/or ceiling insulated? If not, most any refrigerant type cooling unit will be working extra hard just to keep up. If the garage is insulated, you should be happy with a mini split or window unit. However, even though you have no windows in your garage, it is not a big deal to cut and frame out a hole for a window A/C unit to fit into. The advantage here, is you can put it up high where it will take in the most heat. The mini split units like to be mounted up high as well. Of course being high is not as good for winter when you need heat, but the cooling aspect of these systems is where they really do well.
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I like not having windows. No one can see what is inside and windows are a source for heat transfer.
R40 in the attic, a good window unit mounted high and a low electric bill for cooling. Blown in insulation is the best especially if batts were used first.
The sweetness of doing it cheap will be long gone when the bitterness of high cooling/heating cost are realized then endured.