How efficient are geothermal heat pumps? For every 1 unit of energy used to power your geothermal system, 4 units of heat energy are supplied. That’s about 400% efficient! Geothermal heat pumps can achieve this efficiency because they don’t create heat – they just transfer it. Only about one-third to one-fourth of the energy delivered in heating with a geothermal systems comes from electricity consumption. The rest is extracted from the ground.  In contrast, a brand new high-efficiency furnace might be rated 96% or even 98% efficient. For every 100 units of energy used to power your furnace, 96 units of heat energy are supplied and 4 units are lost as waste.  Some energy is always lost in the process of creating heat. ALL of the energy delivered with a combustion-based furnace is created by burning a fuel source.  Do geothermal heat pumps use electricity? Yes, they do (as do furnaces, boilers, and air conditioners). They will not work in a power outage without a backup generator or battery storage system. How long do geothermal heat pumps last? Geothermal heat pumps last significantly longer than conventional equipment. They typically last 20-25 years.  In contrast, conventional furnaces generally last anywhere between 15 and 20 years, and central air conditioners last 10 to 15 years.  Geothermal heat pumps last a long time for two big reasons: The equipment is protected indoors from weather and vandalism. No combustion (fire!) within the geothermal heat pump means no flame related wear-and-tear and more moderate temperatures within the equipment, protecting from internal extremes. Geothermal ground loops last even longer, typically more than 50 years and even up to 100! What kind of maintenance do geothermal heat pumps require? The Dandelion Geothermal system is designed to require as little maintenance as possible. However, there are some key things to ensure the system continues to run well. Every three to six months: change the air filters. If you run the fan continuously, have pets, or live in a dust-prone environment, you’ll need to change your air filters more frequently.  Every five years: have a qualified service technician perform a basic inspection of the system.  Remark： Some of the articles are taken from the Internet. If there is any infringement, please contact us to delete it. If you’re interesting in heat pump products，please feel free to contact OSB heat pump company，we are your best choice.