How Much Energy Does a Water Heater Use?

Your faucets, showerheads and plumbing appliances consume lots of hot water. In fact, the Department of Energy states that water heating is the second-largest utility cost behind space heating and cooling, accounting for approximately 18% of your monthly bill. Find out more about how much energy the average water heater uses and helpful tips to decrease your water heating costs.

How Much Electricity Does an Electric Water Heater Use?

The precise cost to run an electric water heater depends on the square footage of the unit, how much you use it, its power needs and local costs for electricity. For example, a medium-sized, 40-gallon water heater that needs 4500 watts and is active for 2 hours a day at a rate of $0.13 per kilowatt-hour (kWh) costs about $1.17 to run per day, which approaches $35 monthly or $426 each year.

How Much Natural Gas Does a Gas-Fired Water Heater Use?

If your water heater uses natural gas, you must consider the size of the unit, how much you use it, its power draw and what you pay 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 a day at a cost of $1 per therm costs about $0.62 to operate per day, which is approximately $18.60 per month or $226 each year.

Gas vs. Electric Water Heater Costs

As you can see from the examples above, gas water heaters usually cost less to use than similar electric models because natural gas prices have a tendency to run lower than the price of electricity. 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 trim your utility costs with these money-saving suggestions.

Revise Your Hot Water Habits

Consider that each and every time you turn on a hot water tap, you have to pay to heat it. Modify your day-to-day habits to lower your bills. Here’s how:

  • Take faster showers. 
  • Only run the dishwasher and washing machine with full loads. 
  • Minimize pre-rinsing dishes before loading them into the dishwasher.
  • Clean your clothes in cold water if possible.

Seal Plumbing Leaks

Leaky faucets, showerheads and pipes can waste large quantities of hot water. For instance, one drip per second adds up to more than 1,600 gallons per year. Eliminate this waste by fixing plumbing leaks as soon as you discover them.

Install Low-Flow Faucets and Showerheads

Modern rules 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 about $10 to $20 each, resulting in as much as 60% savings on water use. Search for the ENERGY STAR® WaterSense label to increase efficiency without negatively influencing performance.

Turn Down the Water Heater Temperature

The default setting is 140 degrees. Lower this to 120 degrees to save on water heating costs and lower the possibility of scalding at the tap. Just don’t go any lower than 120 degrees to discourage microbial growth within the tank.

If your water heater doesn’t have a temperature readout, determine the setting with a thermometer at the bathroom or kitchen faucet. 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 insulated jackets available at home improvement stores. Be careful to install the jacket correctly to avoid creating a dangerous operating situation. If you're unsure how to proceed, ask a professional for help. Once the tank is insulated, add insulation to the hot and cold pipes coming from the water heater to help things heat up faster at the tap.

Buy More Efficient Equipment

If your water heater is approaching the end of its life span, think about replacing it with an ENERGY STAR-rated model. A tankless water heater is one such option. This upgrade can save as much as 34% on your water heating bills by producing hot water on demand and cutting out standby heat loss. Save energy and lower costs by replacing your hot water appliances with high-efficiency models, including your dishwasher and washing machine.

Schedule Water Heater Services with an Expert

Broad Ripple 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 in your budget. To learn more, please contact your local Broad Ripple Service Experts office today.

chat now widget box