On Tue, 22 Jan 2013 16:02:55 -0500, George
wrote:

On 1/22/2013 10:19 AM, dpb wrote:
On 1/22/2013 9:14 AM, Chip C wrote:
On Tuesday, 22 January 2013 09:43:02 UTC-5, bob haller wrote:

new hot water tanks come with a temp pressure valve pre installed, the
outlet should go to the floor to prevent a scald hazard if someone
happens to be walking by when it operates

Some jurisdictions require the pressure relief to be piped outdoors.
Sounds like this is what the OP is looking at.


Nope...PRV is on the side of the tank not on the CW supply line...

--


A pressure relief valve can be anywhere as long as it can "see" tank
pressure and never be isolated. We have an indirect heater and the valve
sits right on top.
If it is pressure only, yes. If temp and pressure, it needs to be in
the top (portion) of the rank