Inefficient, outdated heating, cooling and ventilation systems can be draining on your wealth but also on your health. Uncirculated, stale air allows moisture, odors and pollutants to linger in your home. Consider replacing systems that aren’t energy efficient if they’re more than seven to 10 years old – even those in fine mechanical working condition. Also consider automatic thermostats and a balanced ventilation system with a single intake for fresh air that’s filtered, heated or cooled and distributed to living areas and later exhausted through several outlets. Over time, energy savings as high as 30 percent from Energy efficient heating and cooling equipment will recoup the cost of buying the systems.

The largest portion of most utility bills is attributed to controlling temperature. An energy efficient heating and cooling system more…