Your furnace keeps you warm on those cold nights, working tirelessly through the winter months. Yet sometimes it speaks to you in a language that's hard to ignore. Strange noises coming from your ...

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 ...