There shouldn't be just water in the expansion tank. If the coolant (50% anti-freeze and water) appears to be boiling in the expansion tank, you may have a bad head gasket or cracked head.
No, an expansion tank is not required.
to circulate water in fresh water tank to expansion talk.
To allow for the expansion of heated thot water
expansion tank
Yes, an expansion tank can be hooked up to a hot water line. This is commonly done in the case of hot water home heating systems.
I believe that the larger the hot water tank, the greater is the need for an expansion tank. Water expands as it is heated. This is why all hydronic heating systems require an expansion tank. A water heater would need expansion tank when a backflow preventer or check valve is installed in domestic cold water line directly after water meter. Some areas require backflow prevention, but not all. Have to check with local plumbing authority about that.
Its a thermal expansion tank to absorb the pressure when the cold water heats in a hot water tank.
Many hot water heating systems with radiators need an expansion tank to operate efficiently. The fact you are in Concord NH is irrelevant.
the operation of a expansion tank?
no, you need a hammer arrestor.
5000 degrees do the fish stay nice and warm. I'm just kidding. You do not boil water for your fish tank but if your wondering water boils around 220 degrees
Cold feed is cold water that supplies boiler water for heating system. Expansion tank relieves excess pressure buildup in heating system.The Cold feed should enter the supply line rather then the return as not to thermo shock a boiler and the expansion tank is to protect the system from excessive pressureAs water is heated it expands causing higher pressures the tank acts an asorber for this expansion