Michigan winters can create a very dry environment in your house causing damage and health concerns. Install a humidifier, which can be used to increase the moisture levels in specific rooms or throughout the entire house. Indoor humidity levels of 35 to 50 percent are considered to be the most comfortable, depending on personal preference.
Most people are familiar with single room humidifiers, which use cool mist, warm air, or steam vaporization to increase humidity in a room. There are also a variety of whole-home humidifiers that can be installed directly in line with your heating system to increase humidity levels throughout the entire house.
While there are various types of whole-house humidification systems, nearly all are controlled by a device called a humidistat, which allows you to set the exact level of humidity desired. Depending on the type of system you choose and the size of your home, a whole-house humidifier will use from 1.5 gallons up to 12 gallons of water per day when the furnace is operating.
Drum humidifiers are commonly used with forced-air heating systems. Drum systems feature a sponge attached to a drum that rotates slowly through a water reservoir. Warm air from the furnace passes through the sponge and picks up moisture, then the moist air is distributed throughout the house.
Bypass humidifiers are connected between hot and cold air return ducts. They use the pressure difference between the ducts to force heated air to pass through the humidifier and return to the furnace. Such humidifiers don’t contain a foam drum but rather a series of plastic discs with small grooves on both sides that allow for sufficient evaporative surface area without requiring a great deal of space.