The inlet of tankless water heater (Rinnai 2532 FFU-C, NG) is piped with 3/4 copper through. The 3/4 outlet (hot water) needs to be switched over to 1/2 somewhere below the isolation / pressure valves. The hot water runs are relatively short (the closest to WH shower is ~5' away). Most convenient for me would be to change-over to 1/2 copper after just 5"-6" of the 3/4 vertical run. Is that acceptable? Cons/Pros? UPC? Thanks :-)
- posted
17 years ago