Replace 50 gallon power vent The Stuber’s had us out due to a leaking 50 gallon power vent water heater. We decided replacing unit was best option. By adapting on to cpvc water lines with copper/glue on adapters we were able to install new AO Smith natural gas 50 gallon power vent unit. System is fully functional and water is hot. New install includes a 6 year tank, parts, and labor worry free warranty.