With no wall insulation, heat escapes your home through your exterior walls in the winter. This can be prevented by putting insulation in the hollow spaces in the exterior walls of your house.

Solar pool covers minimize water evaporation and significantly reduce heat loss, while capturing significant heat from sunshine. Pools with solar covers will both raise the temperature of the pool themselves (often by tens of degrees), and retain the energy of any pool heater in use (thereby saving on any associated heating costs).

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.

Traditional faucets use three times the amount of water that newer, aerating faucets use.

Traditional shower heads can use three times the amount of water that newer shower heads use.

Significant amounts of warmth in winter and coolness in summer escapes up the chimney. The damper prevents these losses when closed.

Some freezers lose much of the coolness they make and do not make efficient use of the electricity they consume. This is especially true of older models, and important in homes with large numbers of people.

Crawlspaces are prone to moisture-related problems and are hard to inspect and maintain. Air seal, insulate, and install vapor barrier on crawlspace floor.

In addition to the protection they provide, storm windows and doors provide a significant additional thermal barrier and halt air leaks.

Skylights can lose heat in the winter, and gain heat in the summer. This can be reduced by replacing them with multipaned and insulated skylights.