When a furnace stops heating a home, many homeowners hope for the best. “I think the thermostat is broken,” they may say, hoping a quick calibration or rewiring will do the trick. Others jump to the worst-case scenario: “I think it may need to be replaced.”
These are both things that can and do happen. However, it’s often not what the homeowner expects. In fact, some of the things that cause a furnace to break down or function incorrectly may surprise you! Here are four things you may not realize could cause failures with your heating system.