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Sustainable Homes of Texas
Advantages of Geothermal HVAC

“GEOTHERMAL  EXCHANGE SYSTEMS ARE THE MOST ENERGY EFFICIENT, ENVIRONMENTALLY CLEAN AND COST EFFECTIVE SPACE CONDITIONING SYSTEMS AVAILABLE TODAY.”   ENVIRONMENT PROTECTION AGENCY

In Texas we experience seasonal temperature extremes, scorching heat in the summer to freezing and below in the winter,  yet just a few feet below the earth’s surface the ground temperature remains relatively constant. In summer a geothermal heat pump extracts heat from the home and transfers it to the ground for cooling. In the winter, the geothermal heat pump takes the natural heat from the ground and transfers it to the home for heating. By using this far more constant uniform ground temperature the geothermal heat pump can reduce energy consumption as much as 50 – 65%.

The greatest energy consumption in our homes is HVAC and water heating. A geothermal heat pump can also supply the house with hot water with the addition of a desuperheater (which acts like a radiator whenever the system is in operation). By using the more constant ground temperature a geothermal heat pump has fewer moving parts and can provide much higher EER (Energy Efficiency Rating), some systems can be rated up to 40 EER vs a high efficiency air-source heat pump at 16 – 18 EER. The geothermal heat pump will have a 7-10 year warranty vs 1 year with the standard heat pump. There is no refrigerant used that can harm the environment. The geothermal heat pump will have no noisy outdoor equipment.

Yes, it is true that the geothermal heat pump is more expensive to install but you will recoup the additional cost in energy savings in as little as 5 years. There is a also 30% tax rebate for the cost of the entire system available through December 31, 2016.

 

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