If you’re asking this question, it’s likely because your utility bills are arriving each month with bigger numbers on them than you’ve seen before. Of course it costs money to run a furnace … but should it really cost that much?
The answer is, “Probably not.” Hikes in heating costs could be warnings of malfunctions somewhere in the HVAC system or a sign the furnace needs to be retired and a new one installed. But they also might point to simple heating mistakes you can correct on your own. We’ll go through a list of possible reasons you have a furnace that’s giving you the low winter blues from high winter bills.