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 ...

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 ...

As compared to a typical older gas furnace, installing one of these 90-percent furnaces can cut your heating bills in half. Although the majority of the savings results from the higher efficiency, a ...