yes that would work. As for the heat, I guess it depends on how cold your room is. As for the plywood, make sure to seal it! After you are done, seal it again! many people here use melamine because it has that plastic coating and holds up to moisture a bit better. I would suggest the opening be in the front with either a sliding glass track or small doors so if you ever decide to build another you can stack them. Good luck and post pics along the wayOriginally Posted by carmich132