Windows: 25 to 50 percent of your heating and cooling comes from your windows, and new technology has led to even more effective ways of managing this. If you have newer windows with insulated frames and a low U-factor rating, this is a feature to make prospective buyers aware of.

Heating and Cooling Systems: A furnace is measured by the annual fuel utilization efficiency rating, or AFUE. A minimum fuel to heat conversion rating is 78 percent. If you have a furnace with an Energy Star label, your rating is higher than 90 percent, much more desirable when paying high fuel prices. For warmer months, an air conditioner should have at least a 10 seasonal energy efficiency ratio, or SEER. That rating would be 12 or higher for an Energy Star label.

Other system perks include the type of unit you have such as a heat pump. Depending on the temperature zone, these can provide economical year round heating and air conditioning. A tankless hot water heater provides an endless supply of hot water and can save 20 to 30 percent of your energy bill. These systems are more expensive than some of the conventional methods of heating and provide a definite selling asset for any homeowner. In addition to actual heating and cooling devices, point out other energy savers such as programmable thermostats with timers, ceiling fans or radiant flooring. Tina Fountain