Why Do I Get Smoke in My Basement Fireplace When I Use the Upstairs Fireplace?

The coziness of a warm fire on a winter day is unmatched in Minnesota. However, if you have a fireplace both upstairs and in your basement, you may notice an issue known as smoke crossover that can cause unwanted smoke to travel between them and into your home.

Take a closer look at what smoke crossover is — and when it’s time to call for chimney repair in Medina.

Understanding Smoke Crossover

When two fireplaces use the same chimney chase, their flues are typically located right next to each other. As the smoke exits one flue, air comes in the other to equalize the home’s air pressure, which draws that smoke back in.

Additionally, as chimneys age, gaps often form around the flue, which is especially a problem for brick-and-mortar chimneys. This issue is referred to as “smoke crossover.”

Why Crossover Is Dangerous

Aside from the unpleasant odor, smoke can cause a buildup of toxic gases. The most dangerous gas contained in fireplace smoke is generally carbon monoxide (CO). This gas is colorless, odorless, and tasteless, which is why CO detectors are essential for early detection.

The symptoms of CO poisoning include dizziness, headache, confusion, nausea, sleepiness, blurred vision, and weakness. With enough exposure, CO can lead to unconsciousness and can even be fatal.

How to Solve Smoke Crossover

If the crossover is due solely to the recirculation around the chimney cap, you may be able to cover one of the flues and prevent smoke from reentering. However, if you have gaps and leaks in your masonry, you’ll need to call for chimney repair in Medina and get a chimney balloon.

A chimney balloon can be helpful even if your fireplace comes with a metal damper. This is because the metal damper on the fireplace can’t stop unwanted air draw.

Installing a chimney balloon tightly in the unused basement fireplace can prevent it from drawing smoke back in. Instead, air will come in through windows and doors to equalize the home’s pressure.

Schedule Expert Chimney Repair in Medina Today

Don’t get smoked out of your own home. Turn to the experts at Guardian Chimney Solutions LLC to tackle smoke crossover issues in Medina. We can make sure your flue liner is properly sealed and evaluate the condition of your basement fireplace so that your family can stay both warm and safe during the cold months.

Call our experienced team to schedule service today.

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