Water Heater blankets were first introduced in the 1970’s when the first push towards energy efficiency took place. Water Heaters back then were far less efficient than the water heaters that are manufactured today. Over the last 12 years, water heaters have greatly stepped up the efficiency of a standard unit. One of the ways they have increased the efficiency is by increasing the R-value of the tank itself.
A water heater blanket is not a big investment, it will usually go for around $30-$50 depending on the size and quality of the blanket. One of questions we are frequently asked about water heater blankets are whether or not they are worth the investment. There are several factors that are involved in the payback on this investment.
The biggest factor on the effectiveness of a water heater blanket is going to be the climate you live in as well as the location of the water heater. If you live in Gunnison Colorado and your water heater is located in your uninsulated garage, this is an investment that is going to make sense for you. However, if you live in Florida and your water heater is located inside your house it’s not going to give you much for savings.
Some water heaters are not designed to work with a water heater blanket. You should always check the owner’s manual to see what water heaters are compatible with these blankets. You should also make sure that you get the right type of water heater blanket. Water Heaters come in many different sizes and vary in both circumference and height. You should also verify that you have access to the heating elements or burner and control valve.