I have a quick question regarding our new upstairs furnace that was installed last July.

Our Lennox SL280v was never wired for "true" 2-stage operation, so the unit runs on low fire for 7 minutes then switches to high. My question is, is it better to have true 2-stage operation where the furnace will only run in high stage when it needs to or is the setup fine the way it currently is? I would like to have true 2-stage operation but I want your opinions on it first. I'm surprised how the installers never ran a W2 wire to the thermostat. The technician who performed our furnace tune-up/inspection several weeks ago said that he could add a wire but said it was optional and it is not impossible to have one added. The thermostat is a Honeywell RTH6450D and it is compatible with multi-stage systems.