Had this Lennox furnace installed last year. It's model EL296UH110XU48C-06
On my old Lennox the burners were right in front and it was easy to access the flame sensor. On this one, I can't even tell where anything is. There is nothing wrong with it, but I just want to buy a spare and have it ready to go in case the flame sensor starts causing issues as they seem to do that every few years.