Leaving hot water tank turned on

rockhillmanor wrote:

Old-Biscuit wrote:

rockhillmanor wrote:
Off.

Only takes one time for the thermostat to go out and it becomes a boiler bomb. Been there done that. Almost burned up the whole side of my RV.

Remember this is not your res hwh that is in the basement. It's right smack up against the walls. You couldn't even hold your hand on the side of my MH the wall was so hot.

And no those relief valves do not always work. And after having the mobile RV repair out to fix HWH......he said the RV relief valves almost always fail to open.

Now that is paranoia and RV Tech hogwash.
RV water heater uses the exact SAME T&P Relief Valve as residential water heaters.......buy them at Lowes/Home Depot/ACE etc.

T-stats......preset for higher water temp than residential BUT still use 2 t-stats just like residential water heaters do, normal temp and a high temp.

BOTH t-stats have to fail and T&P has to fail before water heater can begin to become a boiler bomb (I operated boilers for 30 yrs.)

Hogwash......

Well it was NOT hogwash with my HWH. I saw it fail first hand and felt how hot the walls got.

AND
http://forums.woodalls.com/index.cfm/fuseaction/thread/tid/28384129.cfm
30' 1990 Fleetwood, Pace Arrow:
I need to replace the pressure release valve on my water heater. T

Guess I am not the only one that needed a new RV pressure relief valve. :W