Aprilaire Humidifier Settings Chart (Winter e.t.c)

Do you have or intend to purchase an Aprilaire humidifier? If yes, then you will have to adjust its settings to suit various weather conditions. But before you can perform this task, you will need a basic knowledge of the values to use.

Instead of cramming these settings in your head, you can always get the information from a chart. For this reason, we have added a table to our article that contains Aprilaire humidifier settings for various conditions. So if you want to tweak this item, feel free to scan through the chart and pick the ideal settings for your space.

aprilaire humidifier settings

Aprilaire Humidifier Settings Chart

Here are the settings for using the Aprilaire humidifier. But before using these settings, we suggest that you check the owner’s manual of the item for extra advice. You can also reach out to Aprilaire Customer Service for the same reasons.

Outside Temperature Aprilaire Humidifier Relative Humidity Settings
-20℉ 15 %


0℉ 25%
10℉ 30%
20℉ 35%
30℉ 40%
40℉ 45%

According to the chart, you can set the Aprilaire Humidifier based on the temperature of the surrounding environment. Let’s say the outside temperature rises to 40 degrees, then you can leave the Aprilaire Humidifier at 45%. But if it falls to a lower range such as -10, then the humidifier should stay at 20.

Best Humidity Level for Home in Summer

During the warmer months, you will also have to adjust the temperature settings of the Aprilaire Humidifier. According to experts, these settings should be left at between 40% – 50%. But before using these values on your Aprilaire Humidifier, we suggest that you check with its manual or the Aprilaire Humidifier.

What Should My Aprilaire Humidifier Be Set for Winter?

As you adjust the Aprilaire Humidifier for the winter season, make sure it stays at 40% – 60%. Besides, you can also use this setting for the whole year.

Where Should I Set the Aprilaire Humidifier At?

According to Aprilaire, the ideal humidifier should be adjusted to a relative humidity of 35%. With this setting, your space should have an internal environment of 70F while the outdoor temperature should stay at 20°F.

How Many Hours A Day Should You Run a Humidifier?

According to experts, running the humidifier for 12 hours is ideal for the internal conditions of your space. But if you prefer using the device for longer periods, the damp air will support the presence of mold, mildew, and dust mites.

How Do I Know If My Aprilaire Humidifier is Working?

You can tell if the Aprilaire is working with this simple hack:

Turn the dial of the Aprilaire Humidifier until you reach a setting above the clicked point. Wait for a few minutes for the water to pour out of the drain. If you see the liquid coming out of the space, then it means that the device works.

Should Aprilaire Run All the Time?

Well, it depends on the internal humidity levels of your space. If the humidity falls lower than the humidistat setpoint, then the Aprilaire humidifier will keep on running. But if the humid conditions stay at 45%, then the humidifier will go off.

How Long Do Aprilaire Humidifiers Last?

According to some experts, Aprilaire Humidifiers last for up to 10 years. But this age might depend on the working conditions of the devices.

How To Increase Humidity with the Aprilaire

You can enhance the humidity of your space by using the Aprilaire humidifier. To use this device, simply turn the control knob to the preferred RH setting.

Does Aprilaire Use a Lot of Water?

As you use the Aprilaire Humidifier, it should require 1-2 gallons of water per hour. So looking at this quantity, it would be fair to say that the device uses a decent amount of water.

How Do I Maintain My Aprilaire Humidifier?

You can extend the service life of your humidifier by maintaining it properly. Now here are some tips that can help you with this task:

  • Check the humidifier unit for leaks and other signs of damage.
  • Wash the water reservoir (with mild soap and water) to stop the growth of bacteria.
  • Change the water panel of the humidifier regularly.
  • Remove signs of mineral buildup from any part of the humidifier

What Happens If You Don’t Change Humidifier Filter?

Supposing you do not change the filter on the Aprilaire humidifier (especially after months of use), then the unit might leak. On top of that, exposure to the liquid could damage the entire humidifier.

How Often Should an Aprilaire Filter Be Changed?

Aprilaire Humidifier Filters should be changed every 6 – 12 months. Unlike the humidifier filter from other brands, the Aprilaire models tend to last longer. However, the service life depends on how the product was used.

When Should You Turn Your Humidifier On In Winter?

Are you confused about the right time to switch on your Aprilaire Humidifier? Well, you can use simple ways to choose the ideal period for using the device. For instance, you can wait for the air in your building to become dry before using the humidifier. Besides, you can even start up the device as you turn on your furnace for the cold season.

How Long Should You Run a Humidifier in Winter?

During the winter, the Aprilaire humidifier should not run more than 12 hours in a day. When it comes down to it, excess use of the device leads to the growth of mold and mildew.

How Can You Tell Your House is Dry?

As mentioned earlier, you can switch on the Aprilaire humidifier as soon as the air feels dry. If you are not sure about the dry season, watch out for periods when there are increased cases of dryness of the skin and other parts of the body, chapped lips and constant nose bleeds. Besides, you might also notice the presence of static electricity, wrapped paper items, and peeling paint in your home.


  • Danny Saunders

    Danny Saunders is a tech enthusiast. He enjoys getting his hands dirty with the features and settings of tech products and pushing them to their limits just to know how to get the best from them and how well they can endure "abuse" without breaking down. He shares his findings on this blog.