Home Service Blog Articles by Tiger®

Saving Energy on your Home’s Hot Water Needs

Published: May 21, 2014
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Danger-Hot-Water_2The next time you pay your utility bill, try one simple calculation. Divide the total amount by seven. The result is the amount you spend to heat your water. (If you receive separate utility bills for gas and electricity, use the gas bill for this calculation if you have a gas water heater; use the electric bill if you have an electric water heater.) Of course, you may think this cost is a small price to pay for the convenience of a hot shower. But during the course of a year, this cost adds up. And when you consider that 95 million households in this country pay the same percentage, it is easy to see how much money–and energy–is used to heat water.

Several measures can help you decrease water-heating costs in your home. Some specific actions include reducing the amount of hot water used, making your water-heating system more energy efficient, and using off-peak power to heat water.

1. Reducing the amount of hot water used
Generally, four destination points in the home are recognized as end uses for hot water: faucets, showers, dishwashers, and washing machines. Now, you do not have to take cold showers, dine on dirty dishes, or wear dirty clothes to reduce your hot-water consumption. Less radical measures are available that will be virtually unnoticeable once you apply them.

2. Faucets and Showers
Simply repairing leaks in faucets and showers can save hot water. A leak of one drip per second can cost $1 per month, yet could be repaired in a few minutes for less than that. And some apparently insignificant steps, when practiced routinely at your household, could have significant results. For example, turning the hot-water faucet off while shaving or brushing your teeth, as opposed to letting the water run, can also reduce water-heating costs. Another option is limiting the amount of time you spend in the shower.

3. Washing Machines
Much of the cost–up to 90%–of operating washing machines is associated with the energy needed to heat the water. Either cold or warm water can be used for washing most laundry loads; cold water is always sufficient for rinsing. Make sure you follow the cold-water washing instructions for your particular laundry detergent. Washing only full loads is another good rule of thumb for reducing hot-water consumption in clothes washers.

4. Lower Your Water Heater Thermostat
One simple step for reducing water-heating energy costs is lowering the thermostat setting on your water heater. Although some manufacturers set water heaters at 140 degrees F (60 degrees C), 120 degrees F (48.9 degrees C) is satisfactory for most household needs. Furthermore, when heated to 140 degrees F, water can pose a safety hazard (i.e., scalding). For each 10 degrees F (5.6 degrees C) reduction in water temperature, water-heating energy consumption can be reduced 3% to 5%.

When you plan to be away from home for an extended period of time (at least 3 days), turning the water heater thermostat down to the lowest setting, or even turning the heater off completely, can help you achieve additional savings. Be sure you know how to relight the pilot light on your gas heater, though, before you turn it off.

5. Using Off-Peak Power to Heat Water
Most consumers use more hot water in the evenings and mornings than at other times of the day. For those who have an electric water heater, this usage contributes to the electric utility company’s “peak load,” or the largest amount of power demand that they have to meet on a daily basis. Some utilities are required to offer their customers “time of use” rates that vary according to the demand on their system. Lower rates may be charged at “off-peak” times and higher rates at “on-peak” times. You may be able to lower your electric bills if you can take advantage of these rate schedules. Check with your local electric utility to find out if it offers time-of-use rates for residential customers, and if so, what the rate schedules are. Some utilities even offer incentives for customers who allow their utility to install control devices that shut off electric water heaters during peak demand periods.

These are just a few of the many ways you can save on your hot water heating bills. Call us today to learn more!

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