As temperatures drop, your furnace becomes the unsung hero keeping your home warm and comfortable. But like any hardworking appliance, it can run into trouble, especially after months of sitting idle.

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 ...

Alright HVAC experts, here's your chance to show off your diagnosis skills: We have a 2006 Lennox G50UHi furnace, and we replace the filters regularly, have it cleaned, etc. The only odd thing that we ...