Solar Heat Pumps
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Heat Pump water heating solutions
GeoSolar supplies Heat pump water heating solutions for those instances when solar water heatings is not suitable.
A heat pump is a highly efficient, cost effective method of heating water. It utilises the sun's free energy by extracting heat from the sun-warmed air and transferring it efficiently to the water. Because the heat pump moves the free heat from the outside air to the water, rather than create heat (as a fossil fuel or electric resistance heater does) it can heat your geyser water for up to 70% less cost than these other less efficient methods.
Energy rich ambient air is drawn through the Evaporator coil by a fan. The refrigerant in the machine absorbs this free energy. It is then compressed and pumped to the condenser by the compressor. It is here that the energy is released into water as it passes through the machine. There is no direct contact between the air/water/refrigerant, all the heat transfer is conducted by a set of heat exchangers much like a car radiator
As the ambient temperature changes, the heating output of a heat pump will vary. However, even when temperatures are cooler, the heat pump continues to transfer heat between air and water. Heat pumps are designed to operate between -15°C and 40°C ambient temperature.
On a typical South African day, the heat pump will provide 4kW of heating with only 1kW of electrical input. By contrast electrical elements require 4kW of electrical energy to generate 4kW of heat energy.