01-07-2023, 01:37 AM
The exhaust exits the heater through a 6 inch vertical nipple connected to an elbow connected to a 4 inch nipple. Purchase them at hardware store and replace using never seize on threads. Because installer did not use never seize, use 4 foot pipe to remove existing one from heater. These only need to be finger tight.
Rudy Legett
2003 Foretravel U320 4010
ISM11 450 hp Allison 4000R
Factory Authorized Aqua Hot Repair Center
Southeast Texas Area