How Much Energy Does a Water Heater Use?
Your faucets, showerheads and plumbing appliances consume lots of hot water. As a matter of fact, the Department of Energy states that water heating is the second-largest utility cost behind space heating and cooling, accounting for about 18% of your monthly bill. Learn how much energy the average water heater uses and helpful tips to reduce your water heating costs.
How Much Electricity Does an Electric Water Heater Use?
The exact cost to run an electric water heater is based on the square footage of the unit, how much you use it, its power requirements and average costs for electricity. For instance, a medium-sized, 40-gallon water heater that needs 4500 watts and is active for two hours a day at a rate of $0.13 per kilowatt-hour (kWh) costs about $1.17 to operate per day, which approaches $35 each month or $426 each year.
How Much Natural Gas Does a Gas-Fired Water Heater Need?
If your water heater runs on natural gas, you need to consider the size of the unit, how much you use it, its power draw and the price for natural gas. For example, a medium-sized, 40-gallon water heater that uses .205 therms per hour and is active for a couple of hours each day for a price of $1 per therm costs about $0.62 to operate per day, which is approximately $18.60 each month or $226 annually.
Gas vs. Electric Water Heater Costs
As you can conclude from the examples above, gas water heaters usually cost less to operate than comparable electric models because natural gas prices have a tendency to run lower than electric prices. Fine-tune the calculations with your exact energy usage and rates to create a more accurate picture of gas vs. electric water heater costs.
Tips to Reduce Your Water Heating Bills
Whether your water heater uses electricity or gas, you can cut your utility costs with these money-saving tips.
Revise Your Hot Water Habits
Remember that each and every time you turn on a hot water faucet, you have to pay to heat it. Modify your day-to-day habits to help with energy bills. Here’s how:
- Take shorter showers.
- Only run the dishwasher and washing machine with full loads.
- Limit pre-rinsing dishes before placing them into the dishwasher.
- Launder your clothes in cold water as much as possible.
Resolve Plumbing Leaks
Leaky faucets, showerheads and pipes can waste large amounts of hot water. For example, one drip per second adds up to more than 1,600 gallons per year. Eliminate this waste by handling plumbing leaks as soon as you notice them.
Install Low-Flow Faucets and Showerheads
Modern regulations require new showerheads to consume 2.5 gallons per minute (gpm) or less while kitchen faucets are limited to 2.2 gpm. New bathroom faucets must have flow rates below 1.5 gpm.
You can buy quality, low-flow kitchen and bathroom fixtures for about $10 to $20 each, resulting in approximately 60% savings on water use. Search for the ENERGY STAR® WaterSense label to maximize efficiency without negatively impacting performance.
Turn Down the Water Heater Temperature
The standard setting is 140 degrees. Lower this to 120 degrees to save on water heating costs and minimize the possibility of scalding at the tap. Just don’t go any lower than 120 degrees to discourage microbial growth inside the tank.
If your water heater doesn’t have a temperature readout, determine the setting with a thermometer at the bathroom or kitchen tap. Adjust the water heater’s dial, wait two hours and test the water’s temperature. Repeat this process until the thermometer reads 120 degrees.
Both electric and natural gas water heaters can be insulated with insulation jackets available at home improvement retailers. Be mindful to install the jacket correctly to avoid creating a dangerous operating situation. When in doubt, ask a professional for help. Once the tank is insulated, add insulation to your hot and cold pipes coming from the water heater to help things heat up faster at the tap.
Buy More Efficient Equipment
If the water heater is nearing the end of its life span, look at replacing it with an ENERGY STAR-rated model. A tankless water heater is another option. This upgrade can save up to 34% on your water heating bills by generating hot water on demand and eliminating standby heat loss. Save energy and lower costs by replacing your hot water appliances with high-efficiency models, including the dishwasher and washing machine.
Schedule Water Heater Services with an Expert
Parker Pearce Service Experts is your source for reliable, affordable water heater services in North America. Our highly trained technicians can satisfy any water heater repair or replacement request that comes our way. We carry top products from today’s best brands, including traditional tanks as well as tankless models, to suit your needs while staying within budget. To learn more, please contact your local Parker Pearce Service Experts office today.