Office of Sustainability

Cooling

Air Conditioners

When Buying:

• Determine which type of air conditioner (central air conditioner, heat pump, or room air conditioner) is best for your needs.

• Purchase energy-efficient systems to reduce energy costs. Look for the ENERGY STAR label.

• Choose the right sized cooling unit for your home to reduce energy waste.

Tips for Use:

• Keep your air filters clean. Filters full of dirt impede air flow through the unit. Replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption by 5% to 15%.

•  Consider hiring a professional technician to inspect, clean, and tune your system every 2-3 years.

• Set your thermostat as high as possible in the summer. Aim for 78 ºF.

• In summer, keep your house warmer than usual when you are away and lower your thermostat when you are home. This is simple with a programmable thermostat.

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Ventilation

• Ventilation is the most energy efficient and low cost cooling system.

• Natural ventilation can be supplemented by ceiling fans, window fans, and whole house fans.

• Prevent heat build up by using window blinds and treatments to block sunlight and radiated heat.

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