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Tips To Install Water Heater Insulation Blanket

Installing a water heater insulation blanket is very important to saving energy. The main benefit of insulation is that you save money from gas or electric bills associated with heat loss. There are different levels of insulation based on an R- rating measurement. Older tanks use excess electricity or gas to maintain the temperature of water because their R-values are low and so need insulation. The recommended value is R-11, R-16 or above used in most modern tanks that don’t need insulation.


Here is a brief instruction on how to quickly go through insulating a water heater and reduce heat loss by up to 45%.


Before beginning the installation process, ensure the tank does not leak. If the energy loosed is usable in another way, then there is no need for insulation. You should also confirm with the utility provider for any special reference.


What you need

To install with ease, you will need the following equipment.

– Insulating blanket

– Scissors

– Adhesive tape

– Marker pen

– Installation kit


You will also need a helping hand from another person preferably your plumbing or heating contractor. The equipment above will cost around $20 only.


Installation procedure (How)


a) Turn off the heater. This is the first thing to do. If it uses gas, position the valve on its pilot position. If it uses electricity, turn off the breaker on the electric panel.


b) Measure the heater tank. This will help you when cutting the blanket to fit your tank depending on its size.


c) Temporarily wrap the blanket around the tank in correct place. The ends should not meet at the main access panel.


d) Mark where panels meet and cut them off appropriately leaving allowance of about 1 inch on each extension. For gas tanks, cut circular around the burner and valve. For electric, cut around the two panels. Also cut out the pressure relief valve extension area.


e) Tape the blanket permanently and remember to leave the top open since the blanket is combustible and can catch fire. Turn on the heater.

f) Always remember to set the temperature below 120F.