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

[Ian Gills]

I do not think this is a sensible idea, but I do not see any code to prohibit it.

I only see code requiring there be at least one shut-off.

Any comments?

[Ian Gills]

OK. If there is no problem, then there is no problem.

Thank you.

[Wayne B. Wilson]

I wouldn't worry about 2 valves , Some people put both sides on to service the tank with out disturbing the whole home. I do not believe it is against code

[Buck Hartley, CMI]

No problem.

[Bob Elliott]

Make sure it is on the cold side.

[Stephen W. Stanczyk]

I think it should almost be standard. Much easier for water heater replacement, especially if unit is located on a lower floor. What's another $6 when it makes life easier. And I only go with ball valves. None of those gate valves for me. I've never found one that didn't eventually get stuck or leak.

[Larry D. Kage]

It makes life easier, like Stephen says...no problem.

[Chuck Evans]

It's a good thing and facilitates replacement, especially when multiple units are plumbed in parallel. One unit can be independently isolated and replaced without shutting down the other unit.

Second the preference for ball valves.

[sparksnmore]

There is no reason to have a shut off valve on the hot water outlet of a water heater, besides closing both shut off valves makes a closed vessel.

[Brian E. Kelly]

Originally Posted by sparksnmore

There is no reason to have a shut off valve on the hot water outlet of a water heater, besides closing both shut off valves makes a closed vessel.

It does seem a little dangerous to me also. I guess it will become a practical TPR test.

[Larry D. Kage]

Originally Posted by bkelly2

It does seem a little dangerous to me also. I guess it will become a practical TPR test.

If they are both closed because the heater is being replaced, where does the heat come from?

[Larry D. Kage]

Originally Posted by sparksnmore

There is no reason to have a shut off valve on the hot water outlet of a water heater, besides closing both shut off valves makes a closed vessel.

It prevents all the water in the lines above from leaking out during heater replacement.

[Brian E. Kelly]

Originally Posted by lkage

If they are both closed because the heater is being replaced, where does the heat come from?

One two many ifs for me. What happens when they are both closed while the heater is on?


You usually drain the tank during replacement anyway, I do not see any real advantage for the extra expense.

[rmaday]

Originally Posted by bkelly2

One two many if's for me. What happens when they are both closed while the heater is on?

What if one's closed and one's open and the water heater is tuned on then off then on again?

Seems the guys who've never seen this are in areas with WH in the attic.

[Brian E. Kelly]

Originally Posted by rmaday

What if one's closed and one's open and the water heater is tuned on then off then on again?

Seems the guys who've never seen this are in areas with WH in the attic.

Dammit Rick stop that right now, I can't think straight.