Originally Posted By: pdacey
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I had an agent contact me over the weekend about a house that has a small 6 gallon WH that serves only the master vanity. The inspector (not me) wrote it up because it did not have a t&p valve on it. She said she’s had 5 plumbers out to look at it and they all have said there is nothing they could do because there is no way to get the t&p drain to the exterior. She said some have even told her not to worry about it, it wasn’t a problem.
I have not seen the situation first hand and I have never seen a WH that small. My gut reaction is that a WH, regardless of size, should have a t&p valve. My suggestion was to investigate a small tankless WH for the vanity. Do they make them that small?
Am I wrong about the t&p valve on the WH? Would there be an instance that a WH would not require one?