Electric Water Heater Expansion Tank Installation

Determine the size of your thermal expansion tank.

Electric water heater expansion tank installation.

A 5 gallon expansion tank is needed for water heaters up to 100 gallons. Bottom boards are a buffer made of r 10 or better thermal resistant material that increase the efficiency of your electric heater. Water heater installation code requirements. An expansion tank is generally installed directly above the water heater by means of a tee fitting installed in the cold water delivery pipe.

When your water thermally expands a water heater expansion tank prevents unwanted increases in pressure. The expansion tank installs to the cold water supply line near above your water heater. Before starting installation it is essential to determine the water pressure at. Check the pressure of air inside the thermal expansion tank.

The expansion tank is usually installed horizontally though it is acceptable to install it vertically if it is necessary because of space limitations. Locate the cold water supply line and determine which part of it runs horizontal side by side to the water. For housing an expansion tank of 2 to 5 gallons is. Expansion tanks some systems are considered.

The tank has two sections that are separated by a rubber valve. A 2 gallon expansion tank works with water heaters up to 50 gallons. Determine the size of water heater expansion tank you will need. It should be close to 50 psi.

Disconnect the water and power supply turn off the water supply to your water heater. How to install water heater expansion tank step 1. How to install an expansion tank on a water heater step 1. If it is higher than 80 psi install the pressure reducing valve.

Check the water pressure in your home. This is based on how many gallons of water your. Bottom board electric water heaters require insulation when placed in an unheated area to prevent heat loss. 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.

Check the manufacturer s recommendations for exact sizing. Water expands by roughly 2 as it heats up from 50 f to 120 f. How to install water heater expansion tank in 10 steps step 1. Determine the water pressure.