by John K. Wilson

Created on: January 29, 2009   Last Updated: January 30, 2009

The energy consumption of the average home can be reduced by up to 70% by following some simple recommendations. Many homes are built to bare minimum standards and, in most cases, only have insulation in the attic. Make sure there is insulation in every wall, floor, ceiling, or roof that separates conditioned from unconditioned space. There is debate about how best to accomplish this. Many feel that the standard roll insulation is sufficient; however, studies have shown sprayed-in foam to be a more effective product.

Many homes employ inefficient, aging, or out-dated mechanical equipment. It is important to make sure your mechanical systems were built to today's energy standards. It is also important to make sure annual maintenance is performed on each of these systems. This includes the A/C compressor, furnace, heat pump, ducts and water heater. Where possible, water lines should be insulated as well.

Installing energy saving light bulbs can make a dramatic difference. If you are uncomfortable with bright white lights, low wattage soft white bulbs are acceptable, though not as effective.

Every hole in your house represents a potential energy loss. Doors, windows, utility penetrations, impact damage, chimneys, electrical outlets, hose bibs, satellites, and other items allow outside air to replace inside air. Making sure these areas are sealed with an exterior grade waterproof sealant, expanding foam, or weather-stripping will drastically reduce the amount of exterior air that infiltrates your home.

Many homes have an attic with insulation only in the ceiling. Unfortunately, most roofs are covered with black asphalt shingles that amplify the radiation from sunlight, causing attic temperatures in summer to approach 150 degrees. This is among the largest contributors to energy waste as the hot attic air radiates into the conditioned space through inconsistencies in the insulation. Placing a metallic radiant barrier or sprayed foam insulation in the roof rafters solves this by keeping attic temperatures closer to 100 degrees.

The recommended temperature settings are 67 degrees in winter and 77 degrees in summer. These are quite comfortable temperatures for most people. One thing to consider when leaving the house for work or vacation is the fact that it requires more energy to raise or lower your home's air to a comfortable level if it has been allowed to settle at the ambient outdoor temperature. Unless something is wrong with the air conditioning, it is usually a

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