Unlike some of the west coast guys and southerners, we are driven into basements and other heated spaces from un-heat-able garages and barns, etc. Our gray pud-tat still keeps the mice out of the garage , so I have his box triple insulated and at a window to catch sun-heat and take him fresh water and food 2X a day.
I just got done with a pair of RCA CTC16' color chassis, which I set up a jig for on a solid basement stone laundry sink. I have a 4-foot fluorescent light above it at the a wall, where the schematics hang for quick note-taking.
Heat is from a dryer 6 feet away and I do the laundry as an excuse to be down there
. The dryer is a electric 1964 Montgomery Ward Signature that has a flip-down lint filter door along its bottom to divert damp warm air into the room instead of the 4" metal vent out the basement window. Its the basement so I could care less about lint blowing around too.
Unfortunately the older, fat indoor cat ignores mice incursions, so I have to set traps.
Do not try this with a gas dryer because it needs to vent the products of combustion outdoors.