Thanks Kevin. I just ran another experiment on the outside brooder in the garage, just in case the little biscuit stuffers are too loud for inside of the house. I placed a small forced air electric heater in their garage brooder which will do two things:
1) It will supply the necessary heat. Ambient garage temp was 50 when I turned it on, and within 1 hour I had achieved 87 degrees. It's not even on WAO, so I'm sure it will acquire the proper temp if I jack it up a bit.
2) The forced air will keep the air moving, helping to keep the garage brooder well circulated with fresh air.
The way that this little "barn heater" is made, there should never be any problem with any type of fire hazard. I've used them for years and they are very safe so long as they don't come in direct contact with anything flamable. The heater will be at least 12" away from any of the pine shavings.
This may work out well after all for a couple of noobs!
Beers y'all,
Ken