Does Nest Thermostat Control Humidity [And How]? Leave a comment

Systems Without A Built-In Dehumidifier Mode

What if your air conditioner or central HVAC system doesn’t have a dehumidifier mode? How will the Nest Thermostat control the humidity on these systems?

Cool and Dry can still control the humidity in your home even if your air conditioner or central HVAC system doesn’t have a dehumidifier mode. The Cool and Dry system takes advantage of your air conditioner’s natural ability to turn hot and humid air into cool and dry air to control the humidity inside your home.

The Nest Thermostat can sense very high humidity. It will automatically turn on the air conditioner to control the humidity—cycling the air conditioner on and off as needed.

When Cool and Dry is enabled, the Nest Thermostat might cool your home to a temperature that is lower than your target temperature. It can be 3 degrees Fahrenheit lower than the set temperature or up to 5 degrees Fahrenheit lower than your Eco Temperature.

Take note, however, that using Cool and Dry on a system with a dehumidifier mode can cause your electricity consumption to be higher than without it. This is because your air conditioner or central HVAC system will run more often than normal. Thus, it is best to enable the Cool and Dry feature only if you live in an extremely humid climate.

Fortunately, the Cool and Dry feature is disabled by default if the Nest Thermostat is connected to an air conditioner or central HVAC system that doesn’t have a dehumidifier mode.