Just thought I'd ask this because yesterday I decided to burn my Keystone upstairs and keep the Fireview cold downstairs and see what happens. The outside temps were around 40 all day. The temps were 80+ upstairs and hovered around 70 down. I let the fire burn out about 12am and it was still 75 up and 68 down with an outside temp this morning around 20. I was thinking it would be much colder downstairs but it stayed pretty comfortable. I must be getting some heat downstairs somehow, I'm not using any fans but maybe I'll rig something up. What kind of basement temps do you see when burning upstairs? I'm sure those basement temps won't be as good later on this Winter but maybe I will burn the Keystone a little more than I thought?