Your previous owners didn't have a last name of Roberge did they? They left holes in walls and electrical that was bleh.
No it was Hill.
What these people did was have a finished basement without a true heat seat up. We were assured the electric fire place heated the whole space.
It wasn't even close. I played Mass Effect 3 last year wrapped in an afghan with the heated air blowing directly on me. So we figure no big deal how much can it cost to reheat duct a basement?(here's a tip...It's a bunch)
They also never finished flooring the basement. They ran out of laminate flooring so the threw a rug over it. They didn't even put the flooring in correctly in the first place.
So in February we tore down the previous ceiling tile(which btw had started to sag) had the heat duct re-worked, double checked the electric(because at this point these people could not be trusted) and installed a new ceiling.
I'm doing the floor next year.