Geothermal Systems

 
 

Frequently Asked Questions

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Geothermal heat pumps (GHPs) are durable and highly reliable. GHPs have fewer moving parts than conventional systems and are typically placed indoors reducing environmental exposure. Bard Geothermal units come with a 5 year warranty, however many early GHP units are still functioning after 25-30 years of use. The underground polyethylene pipe carries a 50 year warranty and a estimated usable life span of 200 years.

Geothermal heat pumps were originally developed in the 1940’s. Their popularity has slowly increased until recently, with around 80,000 geothermal heat pumps being installed annually in the United States adding to the over 1 million units in use worldwide.

Geothermal Heat Pumps are considered green for a number of reasons.
GHPs:
• harness local, renewable energy from the Earth
• deliver 4 to 5 times more energy than they use
• reduce greenhouse gas emissions 55 to 60 percent
• do not produce on-site emissions
• reduce the risk of carbon monoxide poisoning
• operate quietly and are typically placed indoors, reducing outdoor noise pollution

Depending on the size of the building, your existing climate control unit and energy prices in your area; geothermal units can save you between 35% and 55% on your annual heating and cooling bills.

Geothermal heat pumps (GHPs) consist of three main elements; the heat pump, an underground heat exchanger (a system of buried tubing that allows water or coolant to disperse or collect heat) and a distribution system such as forced air or radiant floor tubing. Geothermal heat pumps use the relatively stable, year-round temperature of the Earth to heat and cool buildings. While air temperatures fluctuate throughout the year, ground temperatures stay between 45° and 70° depending on where you are located. Instead of burning fuels like natural gas and heating oil, geothermal systems pump water or coolant through the underground heat exchanger to extract heat from the ground in the cool months and disperse heat into the ground during the warmer months.

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