Water Heater Expansion Tank

water heater expansion tank
    expansion tank
  • A tank used in a closed-loop solar heating system that provides space for the expansion of the heat transfer fluid in the pressurized collector loop.
  • An expansion tank or expansion vessel is a small tank used in closed water heating systems and domestic hot water systems to absorb excess water pressure, which can be caused by thermal expansion as water is heated, or by water hammer.
  • A tank designed to absorb excess pressure due to thermal expansion (e.g. closed system).
    water heater
  • An appliance for supplying hot water for purposes other than space heating or pool heating.
  • a heater and storage tank to supply heated water
  • Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses.

M50B25 engine cooling modifications
M50B25 engine cooling modifications
Shown are two options I've come up with for modifying the cooling system on the M50 engine. Both involve cutting the heater and throttle body valves out of the loop. The first assumes just following the existing plumbing and the second blanking those outlets from the engine off completely which would be the tidier option. I'll need to add a coolant header tank in but this needs to be the highest point in the system so mounted on the battery box seems the obvious place. I had planned to stick the battery in the back of the car anyway to save room up the front. I'm working from the assumption that when the engine reaches temperature, the thermostat opens and allows hot water into the top of the radiator. In this case it will also allow any excess due to expansion back to the header tank via a much more constricted pipe therefore ensuring the bulk flows through the rad and gets cooled
Cooling system connections
Cooling system connections
The Westerbeke W-13 cooling system does not provide a standard way to connect a hot water heater. The water heater picks up input water through a tee at the thermostat bypass and then returns water to the expansion tank.. All plumbing fittings in this system are bronze or brass. The galvanized elbow shown in the photo was replaced when it began to corrode after about a year.

water heater expansion tank
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