Conventional humidistats will likely have a series of numbers surrounding a dial. The numbers will often read from 0% (OFF) to 60% (fully ON). For most people a comfortable setting will be between 35% and 45%. By this scale, the humidistat is set to only 25 degrees when the outdoor temperature dips to 0 degrees.

How to Set a Honeywell Relative Humidity Control

1. Rotate the adjustment knob clockwise on your Honeywell relative humidity control to turn it on.
2. Set the relative humidity control according to the current outdoor temperature.
3. Allow the system to operate for at least one full day before making any other adjustments.

58 percent
So to be safe, we recommend setting your humidistat’s relative humidity (RH) to 58 percent and setting your thermostat temperature between 77 and 80 degrees Fahrenheit. These settings will not maintain your selected temperature indoors but will maintain 58 percent humidity.

Here are some tips for using your T9 thermostat to ensure appropriate humidity levels:

1. Set your thermostat to auto to naturally dehumidify the air.
2. Keep the thermostat between 72-78 degrees in the summer.
3. In the winter, keep the thermostat at around 68 degrees when you’re not at home.

The humidistat sends signals to the humidifier to stop the water supply or turns on/off the air conditioner once the set humidity level is attained. It not only helps in maintaining a comfort level in the house but also prevents outbreaks of mildew and mold in humid regions.

What Should the Whole-House Humidifier Be Set at in Summer? Like we said: You should set your humidistat at 40% relative humidity. Feel free to experiment with different humidity levels, but know that they may impact your windows. If you notice water on your windows, that’s an indication your humidity is too high.

There are a few effective ways to raise the humidity in your home.

1. Use a vaporizer, cool steam machine, or even a single room humidifier.
2. Vent your dryer indoors.
3. Air dry your clothes inside.
4. Boil water on your stove.
5. Get some houseplants.
6. Cook at home.

A humidistat will either have a dial — with numbers such as 1 through 10 or percentages listed — or a digital display with buttons or a touchscreen. A homeowner can set and adjust the desired humidity level with this interface. Most manufacturers recommended a setting between 35 percent and 45 percent humidity.

So to be safe, we recommend setting your humidistat’s relative humidity (RH) to 58 percent and setting your thermostat temperature between 77 and 80 degrees Fahrenheit. These settings will not maintain your selected temperature indoors but will maintain 58 percent humidity.

While everyone’s home comfort preferences will vary, we recommend a humidistat setting between 35 and 45 percent for Summer. Setting your humidistat correctly during Florida’s extra hot and humid summers is important. Keep in mind that the goal of your humidistat is to keep the humidity in your home in a comfortable range. Jun 27 2019

Depending on the kind of Honeywell thermostat you have, you will use a different technique to reset it. Identify the thermostat model by looking at the front of the unit or checking the manual that came with it . Caution: Some of these thermostats are connected directly to household electric current.