The Earth absorbs almost 50% of all solar energy and remains a constant temperature of 50°F to 70°F depending on geographical location. A geothermal heating systems or HVAC unit utilizes this constant temperature for heating and cooling your home. You can realize 30%-70% in energy savings vs. traditional systems. There is no flame, no flue, no odors and no loud outdoor equipment. Heating, air conditioning and hot water can all be attained from a single compact unit.