How well does geothermal heating work? A geothermal heat pump works at around 400% at all times. When this is compared to a fuel furnace that works at 78-90%, it is easily seen which one is better. These systems are the most efficient heating systems out there and will save you the most money on your energy bill.

How warm does geothermal heating get?

For direct use of geothermal heat, the temperature range for the agricultural sector lies between 25 °C (77 °F) and 90 °C (194 °F), for space heating lies between 50 °C (122 °F) to 100 °C (212 °F). Heat pipes extend the temperature range down to 5 °C (41 °F) as they extract and “amplify” the heat.

What is bad about geothermal heating?

There also some *cons* when it comes to geothermal energy: Sites must be located in prime areas, requiring long distance transmission, which is often costly. The introduction of water is considered wasteful and possibly harmful to the environment. Emissions of sulfur dioxide and silica are often an issue.