KW Solar, S.L., Renewable Energy

Pumped Systems

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In this type, the solar panel is usually mounted on the roof of the house, and the water tank is positioned somewhere inside the house, preferably as near as possible to where the hot water is finally used. A mains powered circulation pump is used to transfer the solar fluid between the solar panel and the water storage tank, transferring the heat from the solar panel to the water. A controller is required, which measures when the solar fluid is hotter in the panels than in the tank and puts the pump into operation.

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One advantage of the pumped system is that the tank is nearer to where the hot water is needed and that the tank has less heat losses, because it is not exposed to the weather outside. Another advantage is its flexibility. You can make it almost as big as you like (for example for hotels or camping`s...) and you can combine the systems with the house heating, (using more panels of course).
Although the pumped system is more expensive than the compact system, it is often used as well because the visual impact on the house is less. In some solutions the solar panels can be integrated, for example in the roof of the house (as you can see in our photo gallery), using them even as a design object for the house.
We offer complete packages for any typ of house, hotel, camping ...

These packages (solar kits) consist of:

  • Solarpanels
  • Hot water tank
  • Security group (Overpressure valev, expansion vessel, filling mechanism.....)
  • Digital control unit
  • Pump