Straight pipe water heater or use flex hose
November 28th, 2009
Is it better to hard pipe a water heater or use one of those copper flex hoses? Is there a minimum height the nipple has to be before connecting a flex hose? It already has a nipple with heat trap.
Dielectric unions or nipples are a must by code
Wether or not to hard pipe it is up to you, but there’s a fairly high failure rate on the flex connectors.
Expansion tank is required by code
Full port, full open valve on the cold water inlet is required by code.
Temperature should be set between 140 and 160 to kill legionella bacteria, and so you do need a tempering valve, code also.
