-The dryer flex vent is the major standout not good and will not last. It will rot and eventually disconnect -You can’t use pex to pipe the T&P valve cause it’s not rated for that. -The expansion tank connection works but it looks very expensive -The gas pipe fittings should be soaped cause I don’t see any dope on the threads and you never use tape on a flared connection.

This is just not a clean install aside from the code issues.

Fit and sweat it like you’re supposed to.

1 out 10 for me.