Dry indoor air affects comfort, health, and homes during heating season. Knowing how whole-house humidifiers work helps contractors match homeowners with the right solution.

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 ...