I live in a 40 year old bungalow in Edmonton, Alberta, Canada, up north where the winters are very cold. I've got three forced air furnaces in my house, one that heats the basement, one the main floor, and one the addition. All of the furnaces seem to work just fine. I've been in the attic, which is insulated uniformly with wood chips. I will blow in some more insulation once I've finished some potlights and wiring, but the insulation is likley adequate up there (the snow on the roof doesn't melt any faster than the neighbours, and actually a bit slower than most, which is generally a good sign).
The heat in the addition and the basement are just fine. However, parts of the main floor are always cold, especially the living room, which has some pretty big windows and, though it has three heating vents, is the farthest room from the furnace. I figure it will always be a battle to heat it.
Anyway, I am doing some work in the basement, and the ceiling is mostly open during the reno. The previous owners insulated every interior wall cavity in the basement, as well as the entire ceiling, with fibreglass batts. They were musicians / music teachers, and I assume they insulated everywhere more for sound than anything else. I haven't removed the insulation, but it occurs to me that perhaps with a warm basement, removing all of this insulation would make for a warmer main floor?
Just wondering if anybody out there has any experience on this, or an informed opinion? thanks in advance for your help.