Installing a whole house humidifier is a great way to improve your home’s comfort and efficiency levels and foster a healthier indoor environment. And just as your furnace has a thermostat that allows you to adjust your home’s temperature levels, a humidifier has a humidistat that allows you to adjust your home’s humidity levels. People are generally more familiar with temperature levels than humidity levels, so there can be some confusion about the best humidistat settings to use. Today we’re going to clear the air by talking about how to figure out the right humidistat settings for your St. Louis area home!
First, ensure your humidifier’s damper is in the correct position
Before we talk about humidistat settings, it’s important to ensure that your humidifier is receiving air in the first place. Most furnace humidifiers will have a damper located on the ductwork that controls the flow of air to the unit. During the warmer months of the year, that damper is closed because the humidifier is not needed. So when it comes time to start using your humidifier, someone (either you or a Jerry Kelly technician) will have to push the lever on the damper in order to allow air to flow into the unit. Typically, the correct position will be labeled with something like “open,” “heating” or “winter.”
General guidelines for humidistat settings
Now that you know that your humidifier is receiving air, it’s time to choose the proper humidistat settings. In general, a comfortable and healthy indoor humidity level is somewhere between 30-55%. More specifically, most homeowners find that a setting between 35-45% achieves the best results. Feel free to experiment with different humidity levels, but pay attention to your home’s windows any time that you increase the humidistat setting. If water starts to build up on your windows, that’s a sign that the humidity is too high and you should decrease the humidistat setting by a few percent levels.
Considerations for humidistat settings when it’s very cold outside
One thing that you must take into account in regards to your humidistat settings is the temperature outside. On days when it’s very cold outside, your normal humidistat setting might be too high. That’s because the colder temperatures outside of your windows will clash with the higher temperatures and humidity levels on the indoor side of your windows, which will cause condensation to build up on them. This condensation can cause water damage to the walls and floors surrounding your windows.
If you notice condensation building up on your windows on very cold days, decrease your humidistat setting by a few percent levels to compensate for the lower outdoor temperatures. Some humidistats will actually monitor the outdoor temperatures and adjust themselves automatically when it starts to get extremely cold.
If you have any questions about your humidifier’s humidistat settings, or if you’d like a heating system serviced or installed in your home, contact Jerry Kelly, your furnace installation and repair contractor in St. Charles, MO. We provide service all over the St. Louis area, including towns like Ballwin, Chesterfield and Clarkson Valley, MO.