Originally Posted by spfauls
Is it normal that the basement would be this hot with the heat off down there and the vents closed or is something wrong?
My last heating bill was over $300.
This is the opposite of the Stack Effect so something is definitely going on.
How many sq. ft. is your basement?
Assuming it's a natural gas furnace, how many therms or cu. ft. of gas did you use for your $300? This info should be on your bill somewhere.
I pay about a dollar per therm but 10% of my usage goes to the water heater.
Do you have a Web link to your particular system so I can see the spec's?