I apologize in advance. I'm sure this has been answered before, but this forum will not allow searches on 2 or 3 letter words.
I'm having a 2 stage AS HP and 2 stage VS furnace installed next week. I'm also getting a IAQ installed.
In looking at the settings for the fan, and it can be set to AUTO, ON or CIRC. With a VS furnace, I'm sure that the AUTO setting is the least valuable. But I'm wondering about the Pros and Cons of using ON vs. CIRC.
Any sage advice? And Twilli, don't say Coleman!