I'm confused by the two pipes thing.
You know larry... those stoves with one pipe for the flu gases and the other pipe going to the other chimney with those other flu gases
Im tired tonight... so maybe im not understanding
If you see a stove with 2 flu exits...sometimes a stove company will have one top flu opening and one rear flu opening for different types of installations (IE: Chimney or maybe just a hearth) but you would only be using ONE of those and you would order the stove with the exit flu best for you and the other would be non functioning/sealed.
If Im missing something here please enlighten me?
EDIT: thanks Sierra (now I see the light
) ...glad someone is awake tonight!
the answer for the poster is NO, you don't have to use that second top hole for hot air system if you don't wish to