02-26-2010, 10:18 AM
Is the air conditioner going to be mounted like a "window shaker" through the hole in the wall, or are you going to put duct work in the attic with registers allowing the air to blow down? Will your building have heat or is the air conditioner unit a heat pump as well? Here in So Cal near the beach I would still want heat for any building in winter. The temps seldom get below 50 degrees and usually they are above 60, but temps much below 68 degrees aren't that comfortable to work in. I think if I had a building housing a model railroad and the temp was 60 degrees in the building, I would probably not go out to work on the railroad. I would just wait for warmer weather.