Bob is a service technician who is well trained and nationally certified. However, he has sometimes suffered from the same confusion that all technicians occasionally do — the facts that he gathers ...

John Krol of Phoenix would like advice on the type of humidification system to add to a forced-air furnace as well as the pros and cons of adding a system, how much it will cost, and recommended ...

Gas humidifiers are machines designed to create an exact relative humidity (RH) by adding water vapor to a gas flow. The relative humidity is the ratio of partial pressure of water vapor (pH 2 O) ...

Dear Jim: I don't understand how a furnace humidifier saves energy during winter. It takes energy to operate the humidifier and it uses cold water, which cools the house. Can you explain the concept ...