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Depends on your code. If you have a PRV or, as you would say, pressure reducing valve on your water supply to your house, you need an expansion tank. If your pressure is above 80 psi, you need a PRV AND an expansion tank.

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15y ago

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What measures the hear from expanding and contracting liquid or coils?

A pressure relief valve or expansion tank can help control the pressure in heating systems to prevent expansion and contraction of liquid or coils. The relief valve releases excess pressure, while the expansion tank absorbs the extra volume of liquid as it expands.


Why is my temperature and pressure relief valve leaking?

Your temperature and pressure relief valve may be leaking due to high pressure or temperature in your water heater system. This can be caused by a malfunctioning valve, excessive pressure buildup, or overheating of the water heater. It is important to address this issue promptly to prevent potential damage or safety hazards.


Is it necessary to have both an expansion tank and a pressure relief valve on a hot water heater?

You must have a pressure relief valve. I believe it is code nationally. I don't think you can buy a hot water tank w/o one. Expansion tank needed also if water meter has backflow preventer, check with local water authority if it does.


Why is my temperature and pressure relief valve dripping?

Your temperature and pressure relief valve may be dripping because there is excess pressure or temperature in your water heater system. This can be caused by issues such as a faulty valve, high water pressure, or overheating of the water heater. It is important to address this issue promptly to prevent potential damage or safety hazards.


Is the temperature pressure relief valve leaking?

To determine if the temperature pressure relief valve is leaking, check for any signs of water dripping or pooling around the valve. If there is evidence of leakage, it may indicate a problem with the valve that needs to be addressed.


Can an electric water heater explode under certain circumstances?

Yes, an electric water heater can explode under certain circumstances, such as when the pressure relief valve malfunctions or when there is a buildup of pressure due to overheating.


How can I fix the issue of water coming out of the top of the water heater?

If water is coming out of the top of the water heater, it may be due to a leak in the pressure relief valve or a faulty temperature and pressure relief valve. To fix this issue, you can try replacing the pressure relief valve or adjusting the temperature settings on the water heater. If the problem persists, it is recommended to contact a professional plumber for further assistance.


What are the symptoms of water heater pressure relief valve failure?

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Why is my water heater pressure relief valve leaking?

Your water heater pressure relief valve may be leaking due to high pressure in the tank, a faulty valve, or excessive temperature. It is important to address this issue promptly to prevent potential damage or safety hazards.


What is difference between pressure reducing valve and pressure relief valve?

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Are electric pressure cookers safe to use?

Yes, they are. The term "pressure" seems to scare some people. The amount of pressure in a pressure cooker is only about 15 pounds. This, combined with the built-in relief valves, makes them safe to use.


How do you know the bladder in a hot water heating system is good?

If the bladder is bad in your expansion tank the tank will fill with water. When this happens the pressure in your furnace will exceed 30lbs and your pressure relief valve will blow off.