Energy for all Seasons
High efficiency Sonnenkraft & Viessmann flat plate solar panels for domestic solar hot water, solar assisted underfloor heating (UFH) and solar heated swimming pools.
Sonnenkraft SK500N Flat Plate Solar Thermal Systems
Sonnenkraft - SK500N & IDMK
 Made to the highest specifications the award winning Sonnenkraft solar hot water range is the best available in the UK. The Sonnenkraft SK500N flat plates giving the highest outputs from this type of panel available in the UK. The Sonnenkraft flat plates have a higher output than some evacuated tube collectors.
Sonnenkraft has Velux style solar flashing kits
The solar panels can be used as part of the building fabric or added to an existing building at a later stage with minimal fuss. The solar panels are constructed from pressed aluminium and toughened solar glass with a copper absorber plate coated in the high quality Sun-Select absorber surface coating. Sonnenkraft have ready made solutions for hot water and assisted space heating that include cylinders with integrated pumps and controllers with sleek design that will complement any home. The Sonnenkraft panels come with an excellent Velux style flashing kit (Sonnenkraft are owned by Velux).
Multi-award winning solar systems
Sonnenkraft are the winners of awards for innovation and excellence and their Austrian factory produces 20,000 solar thermal systems each year without sacrificing their high level of quality. Sonnenkraft have over 1,000,000m2 of solar thermal collector installed.
Sonnenkraft - Unvented Solar Cylinders (pdf)
Sonnenkraft - Advanced Flat Plate Collectors (pdf)
SPF - Test Result for Sonnenkraft SK500N Flat Plate (pdf)
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Viessmann Vitosol 200-F Flat Plate Solar Thermal Systems
Viessmann - Vitosol 200-F
 Vitosol 200-F solar flat-plate collectors have a high efficiency and an attractive price/performance ratio. The Vitosol 200-F solar flat-plate collector has been successfully used for many years now (previously known as the Vitosol 100), has been further improved. High quality ensures permanent operational reliability, a long service life and very high efficiency, a higher efficiency than some vacuum tube collectors.
Long term efficiency
The highly selective Sol-titanium coating efficiently utilises the solar irradiation and achieves a very high efficiency. The Viessmann Vitosol 200-F solar panel housing comprises an all round folded aluminium frame without mitre cuts and sharp edges and is very pleasing to the eye. Together with the seamless weather and UV resistant pane seal and the puncture proof back wall, these features ensure a long service life and long-term high energy yields compared to other solar flat plate collectors.
Attractive design, individual colour finishes
You can integrate your solar collectors into the roof design, this is especially good for new builds. Vitosol 200-F solar panel can be integral to the roof cover so it looks like a large Velux window when installed. The edge trims help to create a harmonious transition from solar collector surface to roof cover. Upon request, frames and solar panel are also available in special colours (RAL), any colour to match your requirements.
Viessmann - Vitosol Solar Thermal Brochure (pdf)
SPF - Test Report for Viessmann Vitosol 100 Flat Plate (pdf)
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