Pex directly to the heater is perfectly fine in our code. Galvanised, what for nowadays? Only seen galvy in 3-4 very old houses and only used for drains and a water main column for government buildings. That's it.
They were rhetorical questions. I was giving you a ribbing :smile:
I have seen the sheath on fosta pex slide over the crimp ring from too much heat. I don't like the idea of pex right on a water heater. Should be after the tempering valve. If someone cranks the temp up on their indirect the pex could get pulled out of a fitting if it's not supported correctly.
The only time I use galv is for rough nipples or if they have threaded stops and the house is garbage. I am not wasting seamless chromed brass nipples on a garbage house in a pos mdf vanity where you'll never see them.
I did use a 2"x1-1/2" galv bushing at a school the other day. They had removed a sink in the kitchen years ago and the 2" galv tee in the wall was plugged and then cemented over so my manager only ordered me an 1-1/2" trap adapter. I happen to have the bushing because I used it to test something years ago.
That 2" plug was like Excalibur. Three foot cheater on my 18". Two foot wrench was slipping off because the jaws were too wide. I heated it up first with my torch and lit something in the wall on fire so I ran to fill a bucket. Turned out to just be some paper towel they stuffed in to hold the wet concrete.
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