Gallery: HOW TO: Turn Your Inefficient Household Items Into Green Machi...

 

TIP 4: Tune-up or replace your furnace and air conditioner

As two of the biggest energy-consuming systems in a house, efficiency is important in furnaces and air conditioners. Replacing aging models with new green machines will significantly cut energy use, particularly if the models are appropriately sized for the home so they don't cycle on and off too frequently. Tune-up furnaces and air conditioners every year to ensure they are operating as efficiently as possible. Installing a programmable thermostat is also helpful for reducing the wastefulness of heating or cooling an empty home.

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