So I am getting my new pellet boiler installed soon and am trying to figure out the venting details. Originally we believed that the unlined chimney (down center of house) that my oil furnace is currently be vented into would be wide enough to drop 2 6 inch ss pipes down to vent both the boilers. But after closer inspection it narrows to 8x8 internal after it drops into the walls of the house. So I have the options to powevent the oil furnace that will hardly ever be used and drop a ss liner down the chimney for my pellet boiler. Or we could reposition the pellet boiler to an outside wall and run a ss chimney up the exterior wall. I do not like this option from an aesthetic standpoint. Am I missing any other options? I would like a neat and clean install. Also does anyone know the various codes for powerventing, or distance from windows, etc. thanks!
Ben
Ben