Heat Pumps
A heat pump recovers heat energy stored from the sun and utilizes it for the heating of a building and the service water. The investment costs of a heat pump are usually considered rather high. With rising energy prices, however, heat pumps have become more and more common during the last few years as the heating systems of both new and renovated houses, because they save in the consumption of the primary energy (for instance electricity or oil) and reduce the need for heating for example in connection with wood heating.
The efficiency of a heat pump as a producer of heat is illustrated by means of a heat transfer coefficient (COP). The heat source and the applied heat pump technique affect the values of the heat transfer coefficient.
Geothermal heat pumps utilize the energy charged in the ground, rock or water systems. With regard to initial investments, geothermal heat pumps usually are relatively expensive, however, also the most efficient heat pump devices. When a geothermal heat pump is properly dimensioned, it works with a good operating efficiency for long periods during the heating period, and the need for additional peak output is usually covered by means of an electric resistance. A geothermal heat pump investment usually is the more profitable, the bigger the house is.
Air-to-water heat pumps utilizing the most recent heat pump technology have become dramatically more and more common during the last few years. An air-to-water heat pump takes the heating energy from the outside air, transferring the heat recovered to the heating of the house and supply water via an energy charger functioning in most cases as an inside unit. As an investment, an air-to-water heat pump is less expensive than a geothermal heat pump, and it can easily be installed also to renovated buildings, to be used alongside with an existing heating system. For the coldest periods during the heating period, an auxiliary system (for example electric, oil or wood heating) is needed also for the air-water heat pump.
An inverter air heat pump is the most economical heat pump solution. An inverter air heat pump transfers heat energy from the outside air delivering it directly to the inside air. Therefore, an air heat pump suits well for a heating method supplementing electric heating, facilitating savings in the heating costs. An air heat pump can also be used for cooling the indoor air in summer.
Kaukora's extensive JÄMÄ heat pump range provides a suitable heat pump solution for the needs of both the builder of a new house or those who renovate old buildings. The product range consists of geothermal heat pumps (JÄMÄ Star and Star RST), air-to-water heat pumps (JÄMÄ Moon) and inverter air heat pumps (JÄMÄ Jupiter, Mars and Saturnus).
