“”Your system’s [furnaces] aren’t designed to run in temperatures that are below-zero for long periods of times,” Marchand said.
To help alleviate some of the stress off of systems during these cold temperatures, set your thermostat a few degrees lower than what you’re used to.
So if a person wanted the heat at 74°, try 72° or 73°.
It is also recommended you set your thermostat to one temperature and leave it there.
“Set it and forget it and leave it alone,” Marchand said. “Don’t let it run through a program or anything like that. If you have a programmable thermostat those are great, but not for this time of year.””
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Aside from the constant heating and cooling down of the heat exchanger when a program is run which leads to inefficiency, there is another concern. When such an event occurs it can cause carbon monoxide to mix with the air over time. It’s important that homeowners install a carbon monoxide detector to alert them of this odorless gas. It’s a danger that far too often takes the lives of unsuspecting individuals and families.
If your furnace is working harder than it should call the pro’s at Apple Valley Eagan Appliance at 952-953-0080. You can also visit our furnace repair page for more information.