Water Heater Thermal Expansion Tank Installation

Water expands by roughly 2 as it heats up from 50 f to 120 f.

Water heater thermal expansion tank installation. You install the expansion tank down the line from the inlet valve that sends hot water into your home. Expansion tanks for hot water heaters many local codes require back flow preventers. Determine the size of water heater expansion tank you will need. Once the water swells it will carry an extra weight so you should be able to hold the extra water it will carry.

Read the pressure requirement on the side of the tank. How to install water heater expansion tank step 1. Hang the expansion tank above the cold water supply. This is based on how many gallons of water your.

For example in frisco texas all new homes currently require a prv and an expansion tank. The thermal expansion tank. When your water thermally expands a water heater expansion tank prevents unwanted increases in pressure. The expansion tank is usually installed horizontally though it is acceptable to install it vertically if it is necessary because of space limitations.

If you are using a saddle valve you just need to screw it correctly and no welding is required. Thermal expansion tank installation step by step. Turn off power to the water heater and or shut off the gas by turning the valve to the closed position the handle will. Depending on the place of residence the city may need an expansion tank regardless of the water pressure for example when installing a new water heater.

Turn off the water and open a spigot to take water pressure off the line. It should be close to 50 psi. How to install a thermal expansion tank instructions check the water pressure in your home. Thermal expansion tanks eliminate this wasteful costly and dangerous practice.

An expansion tank is generally installed directly above the water heater by means of a tee fitting installed in the cold water delivery pipe. This is usually between 40 and 60 psi. Obtain a suitable thermal expansion tank based on the size of your water heater. Check the pressure of air inside the thermal expansion tank.

If it is higher than 80 psi install the pressure. The tank has two sections that are separated by a rubber valve. Since this seals off the system an expansion tank is required or the relief valve will discharge on every heating cycle. Prevents constant high pressure fluctuations caused by thermal expansion in closed loop systems.

If your unit is fixed to a supply line with a shut off valve switch off the water flow from the supply line to your building. How to install an expansion tank on a water heater step 1. Locate the cold water supply line and determine which part of it runs horizontal side by side to the water. Make sure that it can enter through the horizontal part and the water heater.