I’m remodeling my upstairs, which is a walk-in attic. The chimney goes right through the middle of the attic. Can I make a new vent for my furnace and water heater so i can knock the chimney out and give myself more options for remodeling? If I can, would I use a double or triple insulated pipe vented through the roof?
Yes, you can eliminate the existing chimney and use double wall (B-vent) type, galvanized pipe for your furnace and water heater venting. Just make sure you are using correct diameter vent pipe to ensure proper venting. Triple wall vent pipes are not required to vent furnace and WH.