Shut off on both the hot and cold side of water heater

[Scott Gilligan, CMI]

Having a valve on the hot side of the water heater may not be correct by some building codes, but it is not going to hurt anything. The TPR valve will provide a means for depressuriztion in the event the thermostat fails. A valve on the hot side being closed is no different than all the valves at the fixtures being closed. Water heaters don't blow up when all the faucets are closed. They blow up when the thermostat malfunctions and superheats the water. I installed valves on both sides of the last water heater I installed. Makes installation and servicing a lot cleaner and dryer.

[Jack L. Gilleland]

Originally Posted by sgilligan1

Having a valve on the hot side of the water heater may not be correct by some building codes, but it is not going to hurt anything. The TPR valve will provide a means for depressuriztion in the event the thermostat fails. A valve on the hot side being closed is no different than all the valves at the fixtures being closed. Water heaters don't blow up when all the faucets are closed. They blow up when the thermostat malfunctions and superheats the water. I installed valves on both sides of the last water heater I installed. Makes installation and servicing a lot cleaner and dryer.

I'm with you Scott. Just makes everything easier for $6. Second valve isolates the fixture/appliance. Always did it if I could. But Brian no more than two, unless your into valve redundancy (isn't that a cult on the west coast).

[Larry F. Rollins]

If it were a fact that a tank might blow if both valves were closed, almost all of the comments above would sound totally ridiculous. None of us would ever question recommending removal of the hot water shut off. And as far as the comments above similair to "where would the heat come from..." and "Why would anybody...." We all know what happens when a fella named "Murphy" screws around with anything that could go wrong. Therefore the real question here is; Could the tank blow? It sounds to me that none of us is sure what that answer actually is. So the only truth I find in this thread is that we don't know what would happen in a closed HW tank if the heat were to inadvertantly come on.
On a personal level I feel there is a real possibility of a danger here, yet I do not know for sure..... which is why I started the thread in the first place. I for one do not depend on "bureaucratically written codes" to protect my client. If I know there is a danger I will document it.
I will continue to study this question and will continue to ask others their thoughts, even if I did find most of the posts here to be; less than professional, off subject, pure conjecture, smart assy,and made of pure bullcrap.

[Larry F. Rollins]

If it were a fact that a tank might blow if both valves were closed, almost all of the comments above would sound totally ridiculous. None of us would ever question recommending removal of the hot water shut off, if this were true. And as far as the comments above, similair to "where would the heat come from..." and "Why would anybody...." We all know what happens when a fella named "Murphy" screws around with anything that could go wrong. Therefore the real question here is; Could the tank blow? It sounds to me that none of us is sure what that answer actually is. So the only truth I find in this thread is that we don't know what would happen in a closed HW tank if the heat were to inadvertantly come on.
On a personal level I feel there is a real possibility of a danger here, yet I do not know for sure..... which is why I started the thread in the first place. I for one do not depend on "bureaucratically written codes" to protect my client. If I know there is a danger I will document it.
I will continue to study this question and will continue to ask others their thoughts, even if I did find most of the posts here to be; less than professional, off subject, pure conjecture, smart assy,and made of pure bullcrap.

[rmaday]

Fact is, there is a shut off on the hot side of every water heater. That may be a shut off at the sink or simply a faucet.

The question is really, does the distance from the water heater matter?

[rmaday]

Now for my smart assy part -

Originally Posted by lrollins

even if I did find most of the posts here to be; less than professional, off subject, pure conjecture, smart assy,and made of pure bullcrap.

And repetitive.

Originally Posted by lrollins

which is why I started the thread in the first place.

Ian actually started the thread.

2/19/08
http://www.nachi.org/forum/f22/shut-...99/#post456320

[Bob Elliott]

Originally Posted by rmaday

Now for my smart assy part -



And repetitive.



Ian actually started the thread.

2/19/08
http://www.nachi.org/forum/f22/shut-...99/#post456320

Hmmm
Seems there may be a bit of Deja Vu going on.
http://www.terrylove.com/forums/showthread.php?t=25194

Are there two Ian"s

[Brian E. Kelly]

Originally Posted by rmaday

Fact is, there is a shut off on the hot side of every water heater. That may be a shut off at the sink or simply a faucet.

The question is really, does the distance from the water heater matter?

Even a Lunk Head like me came around to two valves is no big deal. It just helps bone heads change out the water heater without gettting wet.

[Chuck Evans]

Originally Posted by lrollins

If it were a fact that a tank might blow if both valves were closed, almost all of the comments above would sound totally ridiculous. None of us would ever question recommending removal of the hot water shut off, if this were true. And as far as the comments above, similair to "where would the heat come from..." and "Why would anybody...." We all know what happens when a fella named "Murphy" screws around with anything that could go wrong. Therefore the real question here is; Could the tank blow? It sounds to me that none of us is sure what that answer actually is. So the only truth I find in this thread is that we don't know what would happen in a closed HW tank if the heat were to inadvertantly come on.
On a personal level I feel there is a real possibility of a danger here, yet I do not know for sure..... which is why I started the thread in the first place. I for one do not depend on "bureaucratically written codes" to protect my client. If I know there is a danger I will document it.
I will continue to study this question and will continue to ask others their thoughts, even if I did find most of the posts here to be; less than professional, off subject, pure conjecture, smart assy,and made of pure bullcrap.

Now you have this topic going in at least three different threads. Seems like you're bound and determined to make an issue out of something that is a non-issue. If you don't generate sympathetic responses in this thread, do you intend to go to a fourth or fifth thread?

[Ian Gills]

My God I wrote that a long time ago. And no there are not two Ians...I am one and the same. I just post more now over at Terrys, but still keep an eye on the stimulating debate over here!

[Larry F. Rollins]

No Chuck... it's over! Actually, the reason I felt the need to keep repeating myself (as I do here, again,now) is that it was obvious to me that supposedly professional people out there were either not willing or not capable of reading what was said and staying on issue without becoming a wise ***. I shall report... "Work done in a non professional manner".