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Energy from the environment for sustainable independence |
Regenerative heat pump system uses geothermal energy and solar energy – and keeps rooms pleasantly cool in summer
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Sustainable energy supplied by the sun and drawn from the earth – harnessed with the help of innovative technology to producing cosy warmth. That, in a nutshell, is the principle behind the regenerative heat pump system from Buderus, a Bosch Thermotechnology brand. The system uses warmth from the sun and energy from the ground to generate heat for heating rooms and domestic water. In addition, the system keeps indoor temperatures pleasantly cool in summer.
The regenerative heat pump system is ideal for new buildings and for modernising the heating systems in single or two-family houses. High efficiency and compact size are characteristic features of the Logatherm WPS brine/water heat pump. In combination with the heat pump, a Logatherm PKSt passive cooling station lowers the indoor temperature to a comfortable level in summer. The solar system is perfect for heating the domestic water; the bivalent Logalux SMH solar hot water tank is precisely adapted to the integrated heat generators.
By using the soil and the sun as renewable energy sources, this system ensures a high level of energy independence. Energy costs and CO2 emissions can be reduced considerably. Compared with an old system, primary energy consumption can be cut by up to 58 percent (calculation based on a 150 square metre house erected in 1980). Savings of up to 64 percent can be achieved with regard to energy costs.* With this regenerative heat pump system, CO2 emissions can be reduced by up to 56 percent.* German purchasers can also look forward to a government grant of up to EUR 4,430 from the market incentive programme.* (*As of January 2009)
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Sustainable energy supplied by the sun and drawn from the earth – harnessed with the help of innovative technology to producing cosy warmth. That is the principle behind the regenerative heat pump system from Buderus. |
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Particularly low-noise operation
The Logatherm WPS derives up to 79 percent of its heating energy from the environment. The brine/water heat pump with a rated output of between 6 and 17 kW uses panel collectors or rods to draw heat from the soil. It operates without maintenance, thanks to modern compressor technology. The system is not only exceedingly efficient, but also extremely quiet. Buderus has attached particular importance to easy operation and servicing. A graphic display simplifies operation of the integrated HMC10 control unit. Moreover, these systems can produce hot water and heat rooms at the same time.
In combination with the passive cooling station, the Logatherm WPS can also cool the rooms instead of heating them. Cooling is achieved via the underfloor heating pipes or using a convector fan. During cooling operation, the compressor in the heat pump is switched off and the temperature is lowered by the Logatherm PKSt via the flow of brine. By cooling the surface, the system extracts heat from the room and returns it to the soil. Underfloor heating can be used for this purpose, for example. In cooling mode, the system lowers the indoor temperature even as outdoor temperatures rise. The compact dimensions of the preassembled Logatherm PKSt permit installation in a wide variety of settings.
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High energy yield for heating domestic water
Logasol SKN 3.0 panel collectors with a frame of glass fibre reinforced polymer material offer robust, high-quality technology and good value for money. They are ideal for heating domestic water with heat from the sun in summer and between seasons. Copper strip absorbers with highly selective coating ensure a high energy yield.
The new bivalent hot water tank Logalux SMH allows the heat pump to be combined with solar heating of the domestic water. The solar heat exchanger at the bottom of the tank transfers heat from the solar system to the water. The bare-tube heat exchanger at the top is designed as a double helix, thus creating a large surface which efficiently transfers the heat output by the heat pump to the domestic water at low feed temperatures.
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