mail icon Get the latest news and stories about geothermal straight to your inbox.

dandelion logo

Resources

C
Definition
Closed Loop Geothermal System
What is a closed loop geothermal system? A closed loop geothermal system continuously circulates a mixture of water and non-toxic antifreeze through buried or submerged plastic pipes. These underground pipes connect to an indoor heat […]
V
Definition
Vertical Ground Loop
What is a vertical ground loop? A vertical ground loop is a series of plastic underground pipes filled with a heat-transfer fluid and installed in one or more boreholes about 200 to 500 feet deep […]
H
Definition
Horizontal Ground Loop
What is a horizontal ground loop? A horizontal ground loop is a series of plastic underground pipes filled with a heat-transfer fluid and buried at shallow depths over a wide swath of land. The loop […]
Guide
How Much Does A Geothermal System Cost?
It’s easy to feel frustrated while researching how much geothermal heating and cooling costs. Many articles present extreme price ranges with little insight into the factors that affect the price of the system. Without this […]
A
Definition
Air-Source Heat Pump
Air-source heat pumps (ASHPs) provide heating and AC by pushing heat into your home in the winter and pulling heat out of your home in the summer.
P
Definition
Propylene Glycol
Propylene glycol is a synthetic (man-made) liquid substance belonging to the same chemical group as alcohol. Propylene glycol has excellent heat transfer properties and reduces the freezing point of water.
Guide
How Much Does It Cost To Operate a Geothermal System?
The first question homeowners generally ask about geothermal heating and cooling systems is how much they cost to install. The second question is how much they cost to operate. According to the US Environmental Protection […]