Posted on Another Insulation Question
#1 posted 03-06-2019 08:44 PM |
I used fiberglass bat insulation before putting up drywall. I have r19 in the walls and r30 in the ceiling. I use a bigmaxx 50,000 BTU natural gas furnace. The cost to heat the 30×33 detached garage at 68 degrees for the northern Indiana winter is $120.00 extra a year |