Question about Rheem 40 Gallon FVR NATGAS Water Heater 6 YR 22V40F1

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WOULD LIKE INFO ON EXPANSION TANK AND PRESSURE REGULATOR

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Posted on Jan 07, 2010

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Posted on Jan 02, 2017

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Hi the pressure in boiler is very high and dripping out side its not the water valve intake been told its the heater exchanger


There should be a water pressure reducing valve in the make up water line. This valve or regulator should keep the boiler pressure at about 10- 12 pounds. It sounds like that valve is letting more pressure to the boiler than it should. There is also an expansion tank that works to keep the boiler pressure at 10 pounds. The rubber seal inside can go bad and the tank will fill with water.

Feb 27, 2015 | Water Water Heaters

1 Answer

Leaking hot water heater


If it is older than 15 - 20 years and leaking on the floor under the tank, purchase and install a new appliance, If the T&P valve is leaking, change the valve. If it still leaks, replace the expansion tank which should on the supply water line. Try not to install an expansion tank "on its side". BEFORE YOU DO ANYTHING, make certain your incoming water pressure does not exceed 65 -70 psi. This could be the real problem. If so, install a new water pressure regulator. It is usually located inside the basement wall. In a Garden Home, it may be outside at the curb in the ground by the water meter. It may be in the ground buried near the entry through the foundation. It may be near the water heater.

Feb 02, 2013 | Water Heaters

1 Answer

Atwood water air pocket


No you need to replace that valve.

Jul 16, 2017 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

How do i install a pressure tank to my water heater?


Do you mean expansion tank? To relieve pressure?
Expansion tank goes on cold water line before cold enters tank.
See image:
http://waterheatertimer.org/images/water-heater-expansion-tank.jpg

Expansion tanks are installed when TP valve is constantly drizzling hot water due to very hot temperature settings. Or when water pressure is high, etc
It's also smart to install expansion tank so plumbing lasts longer, and older tank is less likely to rupture and cause damage. Inspect tank for leaks each 6 months.
Some regions require expansion tank by local code.
Water heater can be damaged when pressure exceeds 80psi. : Test pressure using pressure gauge at water heater drain valve.

Other resources:
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html
http://waterheatertimer.org/How-to-adjust-temperature-on-water-heater.html
http://waterheatertimer.org/images/BTG-100-Pressure-gauge.jpg

Sep 27, 2011 | General Electric Water Heaters

1 Answer

Water pressure decreases as the water runs


Probably a clog in galvanized pipe.
Expansion tank is not whole-house pressure regulating tank. It is localized protection for plumbing exposed to high pressure caused by very hot water.
If you house has pressure regulating valve, then that can be a cause.
For low water pressure in household, the following link might help:
http://waterheatertimer.org/Low-hot-water-pressure.html

Aug 07, 2011 | Amtrol ST-12-C THERM-X-TROL ASME Expansion...

1 Answer

I have installed a new water heater aruond two months ago. The problem is that the T&P valve keeps going off even with an expansion tank put on the water system. The water supplier has a built in check...


Expansion tank is supposed to stop over-expansion due to pressure.
The check valve will stop over-expansion from pushing pressure back into the supply line.
The real question is what is causing the pressure.
If your TP valve is bad that could cause problem.
If the thermostat is set very high, and there is frequent short-term use of hot water, that can cause heat to build up inside tank.
Solution:
Lift TP valve and let out pressure to see if there is something lodged in the valve.
Be careful of the scalding water.
Let the TP lever down slowly.
Next step would be replace TP valve.
Turn down thermostat to 120, or set to 130-5 if objective is to kill most bacteria.
Last. You might check that your expansion tank is correct for water heater.

Oct 31, 2010 | Rheem 81VP6S/430126 Water Heater

2 Answers

Low pressure on hot water taps and showers


Many states building codes require a pressure regulator and expansion tank for hot water heater installation. Check the pressure regulator if you have one as this would only affect the hot water pressure. Adjust or replace. Rap the expansion tank like knocking hard on a door. Hollow sound is good. Dull thud means it needs to be replaced as it is filled with water.

May 24, 2009 | Rheem 50 Gallon FVR NATGAS Water Heater...

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