PEX can’t be directly linked to a water heater. Initially prolong a pipe 18 in. from your water heater and hook up the PEX for the pipe. They’re usually most popular by homeowners and contractors for their dependability and resistance to superior temperatures. Alternatively, pex is a more recent option https://simongdvmc.theblogfairy.com/32490175/a-simple-key-for-repipe-plumbers-unveiled