We have installed two SimpliFire electric fireplaces. One was in built in cabinetry with shelves on both sides and the other one was in a fireplace. They are very efficient to run and put out great ... read more
Verify that all window and door seals/weatherstriping is in good shape.
Check to be sure doors and windows are caulked properly (no gaps, cracks or missing).
If you have an attic access, treat it like ... read more