I would like to build an enclosed heated area on the inside maybe 10'x 15' and 9'high ceiling inside of it for a work area rather than heat the entire garage. I'm thinking infrared propane heat, or electric of some type, and insulate the walls and ceiling to the maximum. No windows and one door. I want to heat this with the least possible expense incurred on the actual heaters and the cost of operating it yearly. Any thoughts or suggestions?
Eugene
The cost of heating this will be determined on how you construct this room, how your going to ...»
If you have no windows, you could construct on the wall an opening for a wall mounted heat pump unit that is like a window AC system. This will provide fresh air as well as provide heat for winter and cool air in summer.
But to keep expenses down, simply use electrical heaters.
How is the house heated? Perhaps you can run some of that heat from system to room to heat this as well.