Important: A licensed professional should complete the installation, adhering to all state and local codes. The manufacturer will not be liable for any damages due to failure to comply with these instructions or improper installation by an unqualified installer.
Choosing a Location
Select a location that allows easy access for maintenance.
Ensure at least 9 inches of clearance at the top from any ceiling or cabinet interior.
Only install the water heater in a vertical position.
Installation Methods
Free Standing
Place the water heater on the floor under a sink or in a cabinet, upright as shown in the diagram below, and on the front cover of the manual.
Wall Mounted
Fasten the supplied mounting bracket to the wall.
Use screws suitable for the wall material and the weight of the water heater when filled:
ESH-2.5: 41 lbs.
ESH-4.0: 57 lbs.
Hang the water heater on the bracket and pull downwards to ensure that both fingers of the bracket are seated in the mounting slots.
Leave at least 9 inches of clearance above your water heater.
Confirm your water piping orientation (hot and cold) before wall mounting.
Water Connections
Ensure water connections are close to the installation site.
Confirm there is enough allowance for the water intake and outtake hoses to reach the water heater.
Install a shut-off valve in line with the cold-water pipe.
Connect the cold water pipe to the inlet nipple marked with a blue label.
Connect the hot water pipe to the outlet nipple marked with a red label.
Important Note: If your water pipes are copper or bronze, use dielectric connections to prevent corrosion. Failure to do so may damage your tank and void your warranty. To protect the water heater from heat damage due to soldering, solder a piece of tubing to a threaded union fitting before screwing the union to the tank.
Important: Failure to provide dielectric insulation may result in premature tank or nipple failure and may void your warranty. The Temperature & Pressure Relief Valve (T&P valve) is for servicing, and the valve should be in the open position when the water heater is in operation. Do not apply heat directly to inlet or outlet connections.
Note: Mini tanks are for indoor permanent installations only. Before powering the water heater, ensure the system is completely filled with water and all air is removed. This manual and all Eccotemp content are subject to change without notice.