For nearly two decades now, geothermal heating is one technology that has been begging for acceptance from the general public. Presently, little glimmers of hope are beginning to appear at the end of the tunnel for developers of this unique technology. This however is a result of change in attitudes and improvement in technologies. This does not mean that a lot of sales are being recorded as far as geothermal systems are concerned; it is just that there has been an increase in the number of people taking notice and actually making purchases of the system. This means that gradually, geothermal is gaining recognition and acceptance. Geothermal heat pumps, also called ground-source pumps were actually invented in the 1940s. They were designed to make use of the earth’s constant temperature as exchange medium instead of making use of the outside air temperature. This is why geothermal heat pumps maintain 300% to 600% efficiencies on very cold nights unlike the air-source heating systems that do not exceed 175% to 250% efficiency. Yo