Hot Water Heater Expansion Tank Diagram

Shut off power supply and cold water supply to the water heater.

Hot water heater expansion tank diagram. Back to product literature piping diagrams commercial electric heat pump commercial tank type electric commercial tank type gas commercial tankless domestic. How i installed a expansion tank on my water heather and stopped a leak on my relief valve instantly. Unequal water to air ratios caused by a built in. This must be left open to prevent vacuum build up in the water heater.

A hot water expansion tank is a small metal tank usually 2 5 gallons that s installed just downstream of the cold water inlet valve that feeds your residential water heater. Responsible for any water damage in connection with this expansion tank. In a closed plumbing system a standard tank water heater can stress your plumbing pipes and fixtures through the normal thermal expansion that happens when water is heated. Both water heaters and boilers for home heating systems can be prone to this kind of damage unless measures are taken to prevent it.

Hot water expansion tanks are designed to protect the home s hot water boiler and plumbing system. The tank of a water heater consists of a steel outer jacket that encloses a pressure tested water storage tank this inner tank is made of high quality steel with a vitreous glass or plastic layer bonded to the inside surface to prevent rusting in the center of the tank is a hollow exhaust flue through which exhaust gases from the burner flow up to an exhaust vent. Drain water from the water heater by opening a faucet or other fixture. The expansion tank s purpose is to protect your house s hot water system from excessive pressure which can cause damage to fixtures your water heater lines.

However if you have a traditional tank style water heater you will most definitely need to consider if an. Sizing water heater expansion tanks is easy for your hot water heater and adding a hot water expansion tank can be done within 30 minutes. This can be a problem in any closed system where water is heated. What type of water heater do you have.

This may seem like an easy question but it is also one that many people do not actively think about. When water is heated or the hot water is shut off quickly the tanks filled with both air and water will equalize the resulting water pressure. Thermal expansion tanks promote pressure relief for yo. Install the wh or whv tank as shown by teeing into the the.

So when the water pressure gets too high it will flow into your expansion tank instead of damaging your home s plumbing valves fixtures and joints and potentially causing a. A water heater expansion tank is an additional small thank that is attached to your water heater unit.