Well, I decided to buy a new furnace because mine is from 2001 and the mainboard is gone. Trying to decide between the Lennox for 5400 or aire flo for 4200 installed by an HVAC company. The 3rd option is a Concorde unit installed by a private guy for 3800 bucks but he's not tagging it.... between the 2 options the sales guy showed me what would be wiser?


I'm not a big "brand guy". I recommend you go with whoever will do the best job installing the unit. Regardless of brand, if it's not installed properly, it won't work properly. At least not for long. I assume all these units have the same efficiency and features so if it just brand name as the difference, focus on the installer.

Updated on January 9, 2018

Original Article:

Troubleshooting Common Furnace Problems With an HVAC Expert
By Dan Robbins