How to Reduce the Water Heating Costs


Learn how to reduce the water heating costs by applying simple and easy to use tips. Some of the tips require no-cost actions while other require appropriate and on time planning, and sometimes investments.

Hot water usage

The main reason for running hot water in one’s home are for taking the shower or bath, cleaning the dishes (dishwasher or by hand), food preparation and clothes washing (washing machine).

The energy used for heating water is great, right after space heating; and it accounts approximately 20 % of the total usage inside your home, where water used for showers and baths accounts for almost one half. In some cases there is a water leak which can also increase your bill. This is why it is important to consider every step given below as it can save you significant amount of money throughout the year.

14 Tips to reduce the water heating cost

Tip #1

Consider buying the high efficient water heater. If you live in Canada, America, Europe or Australia these appliances that save the energy – reduce the energy consumption are Energy Star approved and are known as high efficient appliances. It is easy to recognize these heaters, just look for the Energy Star logo on the heater.

Tip #2

If the initial investment is not an issue, I recommend buying the condensing water heater, either tank-type or tankless. Condensing type heaters should provide up to 96% energy efficiency, while the conventional, economy type around 60%.

Tip #3

Buy a water heater with the capacity that will suit your family needs. Don’t buy unit with the lower or higher capacity as it leads to less satisfaction and more energy usage.

Tip #4

Locate the water heater as close as possible to the major fixtures to avoid long pipe runs and long wait time for hot water.

Tip #5

Turn the water heater off before you go on a vacation or if absent for the extended period of time. Gas water heaters with the pilot light always waste energy due to the constantly burning pilot. As opposed to tankless heaters, which work on demand only, tank-type heats water whenever there is a call from thermostat, either you open the hot water tap or not.

Tip #6

Avoid utility peak demand periods. Use the timer and programmable thermostats for additional savings.

Tip #7

Insulating blanket. Insulating water heater by wrapping it into the insulating jacket is recommended mainly for old and low efficient tank-type electric heaters, while for the high efficient is not needed since its foam insulation is thick enough. I purposely said electric heater as insulation on oil or gas models can block the air flow or vent which is dangerous.

Tip #8

Heat traps. Most of the new water heaters have the heat traps factory installed, but if these are not installed, see is it economical to put them on. The heat traps prevent hot water from the unwanted energy loss from the tank through the pipes.

Tip #9

Insulate water pipes. Insulate both cold and hot water pipes within 2-3 m of the unit and sections that are exposed to cold air, wrapping the foam sleeves around the pipes.

Tip #10

Set the optimum temperature. Today’s water heaters are shipped with the thermostat factory set to approximately 120 F. The recommended temperature of hot water is between 120 F and 130 F, for saving the energy, preventing the scalding burns and efficient work. Lower temperatures are on the other side not recommended due to the potential bacteria growth.

Tip #11

Is your water heater leaking? Check for leaks and fix them. Also check for leaks on the shower heads and water fixtures and replace if needed.

Tip #12

Habit of using hot water. Instead of taking long and hot showers or bath, try shorter and cooler showers. When applying the soap or shampoo, shaving or cleaning the dishes, you can save some energy by turning the shower or tap off and turning it on when rinsing. Use the cold water in washing machine instead hot, because today’s detergents work great even in cold water.

Tip #13

Consider using the water efficient shower heads. Check in the nearby hardware store, Home Depot or Lowe’s and buy a good brand with the flow rate of less than 10 l/min. You can also buy the water saving aerators but keep in mind that these require deferent flow rate for deferent application (water aerators for kitchen require a flow rate of 10 l/min, while for the bathrooms 3 l/min an average.

Tip #14

Install a drain water heat recovery device to take advantage of the warm water going down the drain and preheat the water going into the water heater.

Everyone likes comfort and convenience. With the above tips on how to reduce the water heating energy costs, you don’t have to sacrifice your comfort, the trick is in making small changes in your habits, appliance and plumbing system, and that will lead to more efficient usage and savings off course.

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