Gas or oil? Can you see or hear a flame? Oil furnaces --- some
have a window iiuc, but others have a round door you can lift to see
the flame, but use a one foot stick, because they get hot. I don't
think a pot holder would be sufficient, and mine would be hard to grip
with one.

What part of the country? When was the last time it was serviced?


Electric. It woudl be easier if I had a gas furnace then I could see if
there was flame or not.

All the tags and stickers are upside down including the one inspection
sticker which says Inspected by and 6712011. Other then that I have no
idea of when it was inspected last. I'm in pacific northwest.