Water heater Set your water heater to 120 degrees F. Six hours after resetting, hold a meat or candy thermometer under running hot water to check water temperature. Adjust the thermostat if necessary. Insulate your water heater. Follow manufacturer's instructions. It will cut the cost of your showers in half.
New models deliver a full spray using less than three gallons a minute.
You won't run out of hot water as often, either. Take shorter showers. Set a timer to remind you when time is up. Set the water to less than full force. Keep water levels below three inches.