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Data Sheet:
Solar Thermal Data Sheet

Information suitable for:
New build
Retrofit
  • Sustainable
  • Energy saving
  • Renewable energy
  • Responsible sourcing
  • Water saving
  • Recycled content
  • Funding available

Technical information

Solar water heating systems use solar panels, called collectors, fitted to your roof. These collect heat from the sun and use it to heat up water which is stored in a hot water cylinder. A boiler or immersion heater can be used as a back up to heat the water further to reach the required temperature.

Main_solar_thermal_panel_detail

There are two types of solar water heating panels. They are evacuated tubes and flat plate collectors, which can be fixed on the roof tiles or integrated into the roof.

Main_solar_thermal_panel_1

Most conventional boiler and hot water cylinder systems are compatible with solar water heating. But if your boiler is a combination boiler (combi) and you do not currently have a hot water tank, you would need to install a twin coil cylinder.

Main_solar_thermal_system_diagram

Hints and Tips

Be sure to use a twin coil cylinder with a Solar Thermal system.

Please speak to us about a full design for your solar and heating requirement.

The roof should ideally face due south at a pitched angle between 30° and 50° to give the best overall performance. Installations facing anywhere to the south of due east and due west will work, although the output will be reduced.

Ensure that the floor joists can support the additional weight of the twin coil cylinder. A 300ltr cylinder will typically weigh 400kg when full.

The Government’s Renewable Heat Incentive (RHI) scheme makes solar water heating grants available for homeowners from Spring 2014. Planning permission has also eased for solar panels.

Make sure the solar panels are not overshadowed by a dormer or trees as this will reduce the output.

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