To clean the filter, wash it in warm, soapy water at least twice a year ... As with a central AC system, a dirty filter in a gas furnace can restrict airflow, leaving the equipment struggling ...

rinse with clean water, and let it thoroughly dry. Ceramic filters rarely, if ever, need to be changed. Furnace humidifiers deliver moist air to the entire house through the air ductwork and ...

It takes diligence to keep indoor air and water clean. Here's how often you ... As with a central AC system, a dirty filter ...