Furnace
We had taken out our sleeper couch, which is where the furnace is situated. Now I want to “box-in” the furnace. Is there any ventilation I need or can I just box it in. I plan on using screws so th...
Forum Discussion
The room air that is to be heated must get to the furnace. As mobeewan said furnaces mounted under couches get their return air from spaces that are left open under and around the couch. If you box the furnace area the size of the opening for return air will be depend on the furnace capacity.
