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2. Ground source heat pump - Wikipedia

   en.wikipedia.org/wiki/Ground_source_heat_pump

   Capital costs may be offset by government subsidies; for example, Ontario offered $7000 for residential systems installed in the 2009 fiscal year. Some electric companies offer special rates to customers who install a ground-source heat pump for heating or cooling their building. [48]

3. Direct exchange geothermal heat pump - Wikipedia

   en.wikipedia.org/wiki/Direct_exchange_geothermal...

   The first geothermal heat pump was a DX system built in the late 1940s by Robert C. Webber. [3] It used Freon gas and buried copper tubing, for increased efficiency. Later [ when? ] geothermal heat pumps designs started incorporating an additional plastic pipe loop to circulate water in deep wells in an effort to gather sufficient heat for ...

4. Is geothermal right for your home or business? Here’s what to ...

   www.aol.com/geothermal-home-business-know...

   “Even though the installation price of a geothermal system can be several times that of an air-source system of the same heating and cooling capacity, the additional costs may be returned in ...

5. Geothermal heating - Wikipedia

   en.wikipedia.org/wiki/Geothermal_heating

   Heat pipes extend the temperature range down to 5 °C (41 °F) as they extract and "amplify" the heat. Geothermal heat exceeding 150 °C (302 °F) is typically used for geothermal power generation. [6] In 2004 more than half of direct geothermal heat was used for space heating, and a third was used for spas. [1]

6. Geothermal energy will heat and cool this Cudahy home. Find ...

   www.aol.com/geothermal-energy-heat-cool-cudahy...

   Geothermal energy will heat and cool this Cudahy home currently under construction. The 1,600-square-foot home will also have 21 solar panels. ... it’s a heat pump system,” he said ...

7. Ground-coupled heat exchanger - Wikipedia

   en.wikipedia.org/wiki/Ground-coupled_heat_exchanger

   An alternative to the earth-to-air heat exchanger is the "water" to earth heat exchanger. This is typically similar to a geothermal heat pump tubing embedded horizontally in the soil (or could be a vertical sonde) to a similar depth of the earth-air heat exchanger. It uses approximately double the length of pipe of 35 mm diameter, e.g., around ...