Commercial and Residential Geothermal HVAC in Chicago Metro area. A new Energy Efficient heating system is one of the most important, investments that you can make in your home or business. High efficiency heating and Cooling Company specializes in installation of Climate Master Geothermal systems and Rheem High Efficiency forced air heating and cooling systems. To ensure perfect climate at all times in your home or business High Efficiency Heating Company will install only High Efficiency heating and cooling products.