Article provided by Lori Wampler – a former Oklahoma College researcher
Did you know Gerald McClain, after numerous decades working with geothermal energy pioneer James Bose at Oklahoma State University, has designed a new home geothermal cooling and heating method?
Heat pumps work as a fridge in reverse, they use electrical energy to move heat from one place to one other rather than generating heat directly.
As a result, they can be 2-3 times more energy-efficient than conventional electric heating units.
A geothermal heat pump is a central home heating and/or cooling system that pumps heat to/or from the soil. It uses the soil as a heat source (in the winter months) or a heat sink (in the summer).
The geothermal pump models are between the most energy efficient solutions for providing HVAC (Heating, Ventilating, and Air Conditioning) and water heating.
The setup rates are higher than normal systems (nearly $45,000 lowered by a 30 per cent with government tax credit), but the difference is normally returned in energy savings in three to ten years.
The Gerald McClain's geothermal system is based on:
– 6 one inch diameter pipes sunk three hundred feet into the soft red clay below his home
– A water antifreeze mix in the pipes that picks up the ground's constant 62 degree F. temperature
– 3 heat pumps in the attic that use a small electric powered compressor to heat or cool the home
The electricity for the pumps costs approximately $100 a month, much less than the standard heating and cooling expenses in the area.
A well controlled heat pump unit not only will save electricity, but will also blow dust into the house, improving indoor air quality.
Indoor dust can pose health hazards, especially to young children. New studies (As published in the epa.gov site in Sept 2009) reveals that indoor dust is highly polluted by persistent and endocrine disrupting chemical substances (such as poly-chlorinated biphenyls).
Heat pumps get energy efficiency by transferring heat around as opposed to liberating it. This is not to say there is no air motion with a heat pump, but the heat exchange lowers that process. So does the lack of a cold-cycle as it exists in many conventional air conditioners, which also acts to blow dust through the house.
The author – Lorie Wampler shares knowledge for the www.splitairconditioning.net/mini-split-heat-pumps heat pumps air conditioning blog. It's a non profit blog focused on her personal knowledge with ac to cut down energy consumption and improve indoor air quality. With this she would like to increase the interest on eco-friendly tips for the home and change the public conception of energy efficiency.