Saving energy at home

Where to start:

• Steps to take that cost nothing, listed in order of energy (and money) saved, are: Lower your water heater temperature to 120^°F, lower your thermostat in winter, wash your clothes in cold water, turn off unneeded lights and electronics, and air dry your clothes in summer.
• Low-cost steps, also listed in order of savings: Install aprogrammable thermostat, seal large air leaks in your home, insulate your water heater, add insulation in your attic, seal and insulate your HVAC ducts, and installefficient showerheads.
• Additional steps: Conduct a home-energy audit, have your heating system serviced, and open curtains on south-facing windows during the day to allow sunlight to naturally heat your home and close them at night to reduce chill.