Residential geothermal both advantages and disadvantages. However, it is based on proven technology that has been used for centuries. Satisfaction surveys show that over 95% of the owners of these systems refer to friends and family.
Even the government, he likes
The Environmental Protection Agency also ranks geothermal heating as the most energy efficient, environmentally clean and cost effective systems available to homeowners today.
How it works
The basic idea is relatively simple.A few feet underground, the earth maintains a constant temperature affected by changes in air temperatures above.
Geothermal systems take advantage of this by using heat pumps to draw heat from the ground to the house during the winter and disperse heat from the house into the ground during the summer....

Comments: 1
Never look for price range look for heaters to fit your square foot requirements then the price will be derived from your choice of efficiency / equipment.
Personally I would recomend Carrier because of simplicity of repairs. I am providing a link to the most common heating and air manfucutres that gives a history and breakdown of their products, very useful for deciding for where they come from.
http://www.zoominfo.com/Industries/plumb ing-mfg/plumbing-hvac-equipment/air-cond itioning-