I'm going to be moving soon, and alot of the potential houses have finished basements. I've been looking at these for my 'finch' room. I have 2 cats, so they can't be just in the main areas of the house, and the bedrooms are so small in these houses that my finches wont fit in there with my bed.

SO. Are finished basements safe for finches? The temperate in the one I'm thinking of is a little chilly, but I'll just raise the thermostat (it was set at 68). I'm more worried about the furnace, hot water tank, etc. I have no idea if they're harmful, gas-wise or otherwise. They're in a separate room in the basement, so the finches couldn't get there even if they get out of their cages.
Thoughts? Information? Experiences?
Thank you!