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What Should You Set Your Humidistat to in the Winter?

The sweet spot is between 30 and 40 percent, and if the temperature drops below freezing, be sure the humidistat isn’t set above 40 percent. In fact, as the temperature drops below 20 degrees, you should decrease the humidity level by 5 percent at each 10-degree interval.

Setting Your Humidistat For Winter

When the weather gets chilly, it’s time to turn on your furnace, and that will dry out your air. You count on your humidifier to kick into action, but a humidistat that’s set too high or too low can affect your comfort (and the integrity of your home).

Dry heat circulating around your home can leave you with itchy skin, chapped lips, sore throat, and breathing difficulties. Too much moisture in the air can lead to condensation, and that causes problems, too.

If your indoor humidity level is too high as the weather gets colder outside, condensation can build up on your windows. That water on your widows can drip, leading to rotting wood or mold buildup.

Finding Your Fit

A good baseline humidistat setting is 40 percent of the temperature outdoors when the temperature is above freezing. As soon as the mercury starts to fall below that, you’ll want to adjust your humidistat lower to avoid that condensation issue.

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