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Author Topic: Water heater without pressure relief valve.  (Read 3834 times)
Bert de Haan
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« on: September 16, 2010, 01:06:11 PM »

Did an inspection today where I couldn't find a relief valve on the electric water. The water heater was from 1997. I couldn't even find a place where it should have been.  There is a temperature limiting device behind one of the access doors. Possibly a pressure relief valve could be installed somewhere down the line I guess but I didn't see one.   I looked up a schematic of the model.  It did have a TPR. It was different in other ways as well so that may not be that reliable.  I am planning to call the manufacturer (GSW) but first wanted to ask you guys.
 
« Last Edit: September 16, 2010, 01:12:37 PM by Bert de Haan » Logged

Bert de Haan
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Bert de Haan
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« Reply #1 on: September 16, 2010, 01:23:50 PM »

Thinking about it a bit more, with a temperature limiting device behind the access panel, there wouldn't necessarily be the regular location for a pressure relief.  It could be in the line as long as it is between the tank and a shutoff valve.  It wasn't there.  Plumber messed up. 
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Bert de Haan
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Dana Bostick
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« Reply #2 on: February 10, 2011, 09:45:36 AM »

Thinking about it a bit more, with a temperature limiting device behind the access panel, there wouldn't necessarily be the regular location for a pressure relief.  It could be in the line as long as it is between the tank and a shutoff valve.  It wasn't there.  Plumber messed up. 

Many heaters come with them pre-installed. They are very expensive, maybe $10 so he was saving money or stole it to put on his own heater. ;-(
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Robert Bockus
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« Reply #3 on: March 03, 2011, 03:02:46 PM »

All water heaters are required to have a TPR valve installed. The location of the TPR should be within 6 inches from the top of the water heater in order to have the probe in the hottest environment to sense the temperature and operate at 210 degrees F. This is here to protect the water heater from over pressurizing and to protect the occupants from having steam coming out of the faucets. Remote water temperature regulators can fail so you need the TPR there for protection.
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Bruce Ramsey
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« Reply #4 on: December 20, 2011, 11:33:57 AM »

Most water heaters are not "planted" in bathrooms.  There are most commonly installed in attics, crawlspaces, garages, basements, and utility closets in the US of A.  Most electric water heaters are not "plugged" in but are rather hardwired to a dedicated circuit.  If a water heater explodes, it will damage the house but not likley to damage the "entire house electricity".  I recommend you check your facts before posting again.
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Dana Bostick
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« Reply #5 on: December 20, 2011, 12:00:36 PM »

This is obviously not an English as the primary language poster or a machine translation.
Not sure what this is about. Obviously confused and non-valid information.
Maybe they "grow" their water heaters where she's from and so have to plant them where needed?
I suppose if the W/H did blow up, it would damage the electrical system as well as the house no doubt.

Very "organic" I'd say. ;-)
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Dominic Maricic
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« Reply #6 on: December 21, 2011, 02:45:59 AM »

It was a spammer."She's" gone now.
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