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 ...

Even in the warmer months of the year, you should regularly monitor your furnace filter's condition -- and replace it as needed -- to keep your family safe and your furnace in good working condition.

Q. When I installed gas heat I included a humidifier on the hot air furnace. Now the unit leaks water on the basement floor. The installers adjusted filters or something without success. How can I ...