I bought a 32X12 portable barn, insulated it and finished it my son put 220 air in window lots of electric outlets and good lighting It holds lots of stuff I have two sewing machines in there and two 10 year old grandkids have sorted scraps and made quilt blocks. It cost 10,000. with my son doing the work. With good insulation it cools down so quick and I think it will heat up easy also. We have four seasons here.