Furnace Expansion Tank Leaking

There are two types of expansion tanks used with hot water boiler tank systems.

Furnace expansion tank leaking.

I never had any problems with overflow leaking with the old tank for 5 years. Steel expansion tanks and bladder expansion tanks. The expansion tank is the same size as the one that was there bout the size of a propane tank maybe just a tad smaller. The changes in pressure due to overflow from the boiler during water expansion as well as having moving parts makes for the potential for degradation of the system.

It says hxt 30 12 psi precharge 5 gallon. The old tank is a gray tank. Leaks tend to travel down with gravity if you see evidence of a leak above the tank then it s likely at the top of that evidence not the bottom. The boiler expansion tank is a vital part of your boiler system.

Before even considering expansion tank replacement if the water leak you are describing is not at an air charge vent on the expansion tank itself a part that is indeed not present on most bladder type expansion tanks for heating systems then you are probably talking not about a problem with the expansion tank but rather a problem with an automatic air bleeder vent a separate. If the tank is on the hot water heating system then it s there to relieve expansion from the water being heated. The furnace relief valve from the boiler or plugging it so that it does not leak is a very bad idea this can allow the. Even in the best boiler system your expansion tank may begin to experience some leaks.

The expansion tanks for boilers are used as a compartment to. This part allows water in the boiler to expand. I can t tell from the photo if it s on the heating system or on the home water supply. The expansion tank is water logged.

Over time it becomes logged with water or air starts to leak out of the tank and when this happens the pressure relief valve will start to leak. The changes in pressure inside the expansion tank can bring about the degradation of the water heating system and cause leaks. Boiler expansion tank problems can greatly affect your hot water system.