PEX can’t be right connected to a water heater. Very first prolong a pipe 18 in. from a water heater and hook up the PEX towards the pipe. PEX provide expands and contracts in excess of copper, so don’t stretch it tight. Let it droop a little concerning fasteners. On https://garrettxekrw.anchor-blog.com/13594200/top-guidelines-of-whole-house-repipe