TEAM CONSTRUCT : Solar collectors heat your water fro free

TEAM CONSTRUCT : Included in all our houses!

The sun emits energy (radiation) that is captured and absorbed by the panels The energy collected is transmitted via a convector fluid that carried the heat to the central heating system of your home.

A solar hot water installation lets you heat your mains water free of charge.

When the sun's heat is insufficient to heat the mains water, it is automatically heated by the central heating system.

  • Description
  • Diagram

The principle of solar thermal energy is to convert the sun's rays into heat by means of solar thermal collectors.

TEAM CONSTRUCT : Working of a solar thermal collector

After passing through a sheet of glass, that lets the light through and retains the heat, the solar radiation is captured by an absorbent surface.
The heat thus absorbed is recovered by a convector fluid, consisting of a mixture of water and antifreeze, circulating beneath the absorbent surface. It can reach a temperature of 60 to 80C, even as much as 110 C.
A thermally insulating material is placed behind the absorbent surface to limit heat loss. The heat is then sent to a hot water tank to produce domestic hot water, to a buffer tank, or to an underfloor heating system to heat the rooms.

TEAM CONSTRUCT : What can you expect from the system?

With 1 m area of collector per person, you will produce at least 50% of the hot water you use during the year, even in less sunny regions.
The share of the energy provided by the solar water heater varies according to the amount of sunshine: in Summer, it will cover 100% of needs, during the mid-season: 60% and in Winter: 20%.
When there is insufficient sunshine, it must be possible to produce hot water by other means.
The water heater is connected to the central heating boiler via an electronically-controlled system. The boiler will automatically heat the domestic hot water when there is insufficient sunshine.

During the first petrol crises of the 1970s, a large number of solar water heaters were installed throughout Europe. A large number of those installations are still in operation today. It is estimated that the energy savings generated by these nstallations have paid back their installation costs two or three times over.


Up to ? percent according to the regions and municipalities concerned