Insulating and heating an outside garage. Worth it?
So we are thinking about insulating our garage and using it as a gym and workshop. Currently it's an oversized 2 car garage with stick and frame construction. I have a pretty big climbing wall built and some gym equipment so I park outside anyway.
Our idea is to build it out as a gym/workshop that we can actually use in winter. Currently, I can't even wax skis out there because it's so cold and the wife still wants to park in there in the winter, which will let air in and out at least twice a day. The garage door is pretty beefy and doesn't let much air in unless it's open (Duh).
We live in the mountains where it's fucking cold most of the year and I know that heating a space this big will take considerable amounts of BTUs to accomplish. So is it even worth trying to insulate and heat this thing for winter?