We now have 2 little tower heaters that I picked up on a garage sale this summer. Paid $3 each for them and with one up in the bedroom and one downstairs they worked good enough this fall that I never ran the furnace this fall. We were using an Eden Pure which IMO are junk and a waste of good hard earned money.
These heaters I have now are made by Lasko and have a footprint of about 6"X6" and stand about 2 feet tall. They have digital read out and thermostats on them as well. Great little heaters for $6
This is very close to them only a little newer version.
Tower heaterNext season we will now have an electric fireplace that Santa brought us this year. I just need to finish getting it installed once it warms up enough that I can run the slides back out.