There are severl things to consider first: 1) Was the proper double-paned, Low-E windows made for such a location installed? 2) Is the room properly insulated? 3) Does the existing HVAC unit have the ... read more
You should decide if you want above ground or in-ground. If you decide to go with in-ground, you should do some research on vinyl liner compared with concrete. :-) Good Luck!