Although some manufacturers set water heater thermostats at 140° F, most households usually only need them set at 120° F. Setting the thermostat at a lower temperature threshold can save substantial amounts of energy.
Calculation in Completed Actions is actual savings which is updated monthly.
Some water heaters lose much of the heat they consume. This is especially true of older and lower cost models.
Using the clothes dryer with only full (or near full) loads of laundry saves substantial amounts of heat energy.
Enormous amounts of (often heated) water simply run down the drain, unused in processes that wash dishes by hand.
Tank-based hot water heaters lose significant amounts of heat when they are on. In periods when hot water is not used, this waste can be easily prevented by simply shutting the water heater off.
Traditional faucets use three times the amount of water that newer, aerating faucets use.
Traditional showerheads can use three times the amount of water that newer showerheads use.
Insulating your hot water pipes will reduce water heat loss on the way to your faucets by up to 5 degrees F, will reduce the wasted heating at your water heater, and make hot water more readily available when you turn on your faucets.
Insulating your hot water tank will reduce heat loss significantly.
In many circumstances, a humidity setting of 20% is sufficient; consult your home equipment advisors and physician to determine the minimum needed humidity level.