If you are currently heating your home with electric resistance heat (such as electric baseboards), or you have a heating system that runs off of propane or fuel oil, you should consider installing an air source heat pump (ASHP). ASHPs use electricity to move heat from the outdoors to inside your house providing heating in the winter. Because the technology moves heat rather than generating heat, ASHPs are often two to three times more efficient than conventional electric heating systems and are also much cheaper to operate than fuel oil and propane systems. They are also more efficient than other types of air conditioning systems providing additional savings during the summer. ASHPs can be used with an existing ducted heating/cooling system, or ductless indoor units can be installed where an existing duct system does not exist.

Glass doors can lose heat in the winter, and gain heat in the summer. This can be prevented by replacing them with multipaned and insulated frame glass doors.

If you do not clean your dehumidifier regularly it will have to work harder to maintain your preferred humidity setting.

Just one faucet with a constant drip can leak up to 10,000 gallons a year.

If you will be gone from your home for more than a month, you could save significant sums by switching your refrigerator off.

Setting your refrigerator temperature below 40 degrees is unnecessary and uses more energy.

A leaky toilet can waste 20,000 gallons a year. Toilet leaks in many cases can be obvious (sounds coming from the toilet when it is not running), but in other cases can be harder to detect.

If your current hot water heater uses electric resistance elements to heat your hot water, or if you have a hot water heater that runs off of propane or fuel oil, you should consider installing an air source heat pump hot water heater. Air source heat pump hot water heaters, also commonly referred to as heat pump water heaters, use electricity to move heat from the surrounding air into your hot water tank. Because the technology moves heat rather than generating heat, heat pump water heaters are often two to three times more efficient than electric resistance hot water heaters and are also much cheaper to operate than fuel oil and propane hot water heaters. Since they remove heat from the surrounding air, they can cool a space and therefore should be installed in areas with sufficient amounts of air (not in a closet) where heating set points are lower, such as a basement, or in spaces with excess heat, such as a furnace or boiler room.

Electric water heaters are much more expensive to run than gas ones. This is especially true of older and lower cost models, and the running cost difference is much more significant in homes with large numbers of people.

Some water heaters lose much of the heat they consume. This is especially true of older and lower cost models, and important in homes with large numbers of people.