How Much Energy Does a Water Heater Use?
Your faucets, showerheads and plumbing appliances consume plenty of hot water. In fact, the Department of Energy says 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 a typical water heater uses and helpful tips to scale back your water heating costs.
How Much Electricity Does an Electric Water Heater Use?
The precise cost to run an electric water heater is determined by the square footage of the unit, how much you use it, its power requirements and what you pay for electricity. For instance, a medium-sized, 40-gallon water heater that uses 4500 watts and is active for just two hours a day at a rate of $0.13 per kilowatt-hour (kWh) costs about $1.17 to run per day, which arrives at $35 per month or $426 each year.
How Much Natural Gas Does a Gas-Fired Water Heater Use?
If your water heater runs using natural gas, you have to consider the size of the unit, how much you use it, its power draw and what you pay for natural gas. For instance, a medium-sized, 40-gallon water heater that uses .205 therms per hour and is active for a couple of hours per day at a cost of $1 per therm costs about $0.62 to operate per day, which comes to $18.60 monthly or $226 per year.
Gas vs. Electric Water Heater Costs
As you can conclude from the examples above, gas water heaters typically cost less to use than comparable electric models because natural gas prices tend to run lower than the price of electricity. Refine 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 lower your utility costs with these money-saving suggestions.
Revise Your Hot Water Habits
Remember that each and every time you turn on a hot water faucet, you must pay to heat it. Modify your daily habits to help with energy bills. Here’s how:
- Take quicker showers.
- Only run the dishwasher and washing machine with full loads.
- Avoid pre-rinsing dishes before loading them into the dishwasher.
- Wash your clothes in cold water whenever possible.
Seal Plumbing Leaks
Leaky faucets, showerheads and pipes can waste significant quantities of hot water. For example, one drip per second adds up to more than 1,600 gallons per year. Eliminate this waste by repairing 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 find quality, low-flow kitchen and bathroom fixtures for approximately $10 to $20 each, resulting in approximately 60% savings on water use. Search for the ENERGY STAR® WaterSense label to maximize efficiency without negatively influencing 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 lower the risk of scalding at the tap. Just don’t go any lower than 120 degrees to discourage microbial growth in the tank.
If the water heater doesn’t include 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 reaches 120 degrees.
Add Insulation
Both electric and natural gas water heaters can be insulated with insulation jackets available at home improvement stores. Be careful to install the insulation correctly to avoid creating a dangerous operating situation. If you're unsure how to proceed, ask a professional for help. When 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 faucet.
Buy More Efficient Equipment
If the water heater is approaching the end of its life span, consider replacing it with an ENERGY STAR-rated model. A tankless water heater is a good option. This upgrade can save approximately 34% on your water heating bills by generating hot water on demand and getting rid of standby heat loss. Save even more by replacing your hot water appliances with high-efficiency models, including your dishwasher and washing machine.
Schedule Water Heater Services with an Expert
Service Experts Heating & Air Conditioning 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 get the full details, please contact your local Service Experts Heating & Air Conditioning office today.
