Furnace Expansion Tank Leaking

The old tank is a gray tank.

Furnace expansion tank leaking.

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 boiler expansion tank absorbs the expanding water by allowing the air in the expansion tank to compress this prevents the pressure. I never had any problems with overflow leaking with the old tank for 5 years. If the tank is on the hot water heating system then it s there to relieve expansion from the water being heated.

The changes in pressure inside the expansion tank can bring about the degradation of the water heating system and cause leaks. 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. Even in the best boiler system your expansion tank may begin to experience some leaks. The boiler expansion tank is a vital part of your boiler system.

There are two types of expansion tanks used with hot water boiler tank systems. 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 furnace relief valve from the boiler or plugging it so that it does not leak is a very bad idea this can allow the. Boiler expansion tank problems can greatly affect your hot water system.

An expansion tank is a small tank that protects closed and domestic water heating systems from excessive pressure. It says hxt 30 12 psi precharge 5 gallon. I can t tell from the photo if it s on the heating system or on the home water supply. The expansion tank is a pressurized system.

Steel expansion tanks and bladder expansion tanks. 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. The expansion tank is water logged.