My studio sits across the driveway to my house. Built in 2004 as a pole building finished with interior walls  and 9’ ceilings and very well insulated. The major heat source are eheat panels from eheat.com. They keep the studio a comfortable 60 degree when needed. The 1895  Glenwood Oak Parlor Stove is used to warm the studio when I am working there.  Bought stove from Barnstable Stoves on Cape Cod, MA.