vacuum relief valve
- Thread starter britkath
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Why do you need a vacuum relief valve for a water heater?
Or are you asking about a Temperature and pressure relief valve?
If so it is rated by the BTU output of the heater and the outlet hole size of the heater. Most have a 3/4" but some big heaters with High BTU's have a 1" hole.
Always use a T&P relief that meets or exceeds the max output of the heater.
Or are you asking about a Temperature and pressure relief valve?
If so it is rated by the BTU output of the heater and the outlet hole size of the heater. Most have a 3/4" but some big heaters with High BTU's have a 1" hole.
Always use a T&P relief that meets or exceeds the max output of the heater.
Bottom fed water heaters require a vacuum relief valve under IPC, but I have never heard of, nor had to, size one.
Is it actually fed from the bottom or from the front or back of heater near the bottom?
Now that is something we don't use here.
http://media.wattswater.com/es-n36.pdf
http://publicecodes.cyberregs.com/icod/ipc/2009/icod_ipc_2009_5_sec004.htm
so I looked it up. That could come in handy. Sometimes when we shut off a multi unit building, the individual WH's siphon out. No access no control.
But do they have a tendency to leak?
http://media.wattswater.com/es-n36.pdf
http://publicecodes.cyberregs.com/icod/ipc/2009/icod_ipc_2009_5_sec004.htm
so I looked it up. That could come in handy. Sometimes when we shut off a multi unit building, the individual WH's siphon out. No access no control.
But do they have a tendency to leak?
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Not very common, and only when the water gets shut off and drained, so that they actually open up. But they can and occasionally do stick once they are opened.
ON the side. 15" from the bottom, 75" tall water heater.
killdill045
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Is it actually fed from the bottom or from the front or back of heater near the bottom??
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this is the how it hooks up. i have never used anything but a 1/2 vacuum breaker
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Why in the HECK are you attaching an onion to your water heater, frodo?
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I was hungry
Not a vacuum breaker, a vacuum relief valve per IPC 504.2.
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lol,,busted,,you are correct, thank you
Screw the onion, it looks like frodo splurged on some white paper! Thatta boy!
