BLOOMINGTON, Ill. (WMBD) -- The cold winter months are on their way, and keeping your home warm during those months is essential, making furnace maintenance important this time of year.

"Typically, when furnaces break, it's not the most opportune time. That's going to be on the coldest days when it's least preferable," said Matt Mooney, general manager of Summers Plumbing Heating and Cooling.

A few signs that your furnace may not be working correctly include unusual smells or noises coming from your furnace. If the furnace is not producing heat, that is also a sign you need to call the HVAC company, sooner rather than later.

"Have a professional company out to do a full 23-point inspection, make sure that everything is in line and they're ready to go for the season. Typically, you want

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