When installing the water heater, set it on a piece of styrofoam insulation to keep heat from dissipating into the floor. If it is, you could lose as much as 700 gallons of hot water every year. You could save water and electricity by fixing it. Hold an oven thermometer under a faucet with the hot water turned on full force. If it registers more than 140 F and you are not using an automatic dishwasher, you can turn your water heater down to 120F. Check your electric water heater for burned out elements.
Electricity can flow through the water without heating it.
Although submersible water pumps operate efficiently, they have been found to be running continually without anyone knowing it. Make sure the tank is not waterlogged. It is hard on the pump physically and consumes much more electricity than is needed. Refrigerators and Freezers Check your refrigerator and freezer for airtightness by opening the doors, inserting a new dollar bill where the seal meets the unit itself, then shut the door and try to pull the bill out. A refrigerator or freezer with a large accumulation of frost or dirt is operating inefficiently.