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As gas and oil begin to run out, the challenge for us all is to develop cleaner, renewable sources of energy.

Key features
The Redring Sunstore Solar system will:
  • Provide 60-70% of your typical
    domestic hot water requirements
  • Radically reduce your domestic hot
    water heating bills
  • Heat your water in summer and winter
  • Integrate with all types of heating
    systems including combi boilers
  • Require no scheduled maintenance
  • Reduce CO2 emissions by at least
    500kg/year
  • Provides free hot water for at least 25 years


The Redring Sunstore Solar system is designed for easy installation, usually taking just a day to fit and planning permission is not usually required. Installers should refer their local authority to Planning Policy Statement 22 (PPS22)which encourages the use of solar thermal collectors. The low profile panels clip into a unique roof mounting which avoids roof leaks and keeps all pipe-work hidden from view. The Redring Sunstore Solar System has been designed and manufactured in Britain to the highest of European standards (EN12975–1).

Having installed the collector how do we convert the heat energy into hot water in your taps? Simply by circulating fluid through the collector which absorbs the heat and transfers it to your storage cylinder. The circulation pump is operated by a control system to ensure it only pumps whilst the collectors are absorbing energy. The sealed system includes an expansion vessel to allow for volume change as the water is heated. The control system uses digital temperature sensors to measure the heat of the Lazer II collector and compares it to the heat/temperature in the storage cylinder.

The pump is run when the collector temperature is higher than the cylinder and stopped when the collector temperature falls overnight. As modern houses have several types of domestic hot water systems there are slightly different ways of integrating the solar energy, but the energy gains are real and significant. The UK climate is challenging and because of the shorter winter days it is not possible to be completely independent of conventional water heating. However, Redring systems can supply more than half your domestic hot water energy consumption.
The range
Solar Thermal collectors produce hot water directly from the sun. Even in the UK the Redring Sunstore Solar Collector is proven to provide around 60% of an average family’s annual domestic hot water requirements for free. The Redring Sunstore is designed in the UK specifically for UK weather conditions. The benefit to the householder in terms of reduced fuel bills is clear - especially with the continuing rise in gas prices. The benefit to the environment is also enormous; reductions in greenhouse gasses help to reduce the devastating impact of climate change.

“Proven to provide around 60% of an average family’s annual domestic hot water requirements for free”

The Redring Sunstore Solar thermal collectors utilize state of the art thermal vacuum technology to convert solar energy into hot water. The Selective coating enables the use
of the whole energy spectrum to generate heat and although it produces much greater energy in bright sunshine, hot water collection temperatures are still achieved in overcast conditions.

In order to lock the energy in, the Redring Sunstore collectors use vacuum insulation technology to prevent the heat escaping from the tubes much like a vacuum flask.

We have experience of installation in a variety of applications, from a traditional pitched roof, vertical wall mounted or even on top of a high-rise building.

The Redring Sunstore Solar thermal collectors can be sized to provide larger quantities of hot water depending upon your requirements. Redring Solar can also provide a cost
effective solution for DHW (Domestic Hot Water) in Social Housing applications.

“Redring solar reduces C02 emissions and helps ensure compliance with Part L of the
building regulations”


The April 2006 revision to Part L of the building regulations requires that all buildings do not exceed a target carbon emmission rate. This can be achieved by improving insulation,
air-tightness or the construction method of any given building. However, in most situations simply installing a Redring Sunstore Solar thermal collector will provide suffi cient carbon saving to achieve Part L compliance without any building design change.
Further details

 Sunstore-300WSunstore-300Sunstore-250WBSunstore-250WSunstore-250BSunstore-250Sunstore-210WSunstore-210Sunstore-180BSunstore-180
Code47786510477865094778650847786507477865064778650547786504477865034778650247786501
DescriptionRedring Sunstore 5 panel solar system (Flat roof/wall)Redring Sunstore 5 panel solar system (Pitch roof)Redring Sunstore 4 panel solar system (Flat roof/wall, butterfly)Redring Sunstore 4 panel solar system (Pitch roof / wall)Redring Sunstore 4 panel solar system (Pitch roof, Butterfly)Redring Sunstore 4 panel solar system (Pitch roof)Redring Sunstore 3 panel solar system (Pitch roof/wall)Redring Sunstore 3 panel solar system (Pitch roof)Redring Sunstore 2 panel solar system (Pitch roof, Butterfly)Redring Sunstore 2 panel solar system (pitch roof)
Collector typeSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct waterSunstore direct water
Aperture area0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)0.93m2 (1m2)
Gross area1.35m21.35m21.35m21.35m21.35m21.35m21.35m21.35m21.35m21.35m2
Total length2110m2110m2110m2110m2110m2110m2110m2110m2110m2110m
Total width615mm615mm615mm615mm615mm615mm615mm615mm615mm615mm
Total weight38kg38kg38kg38kg38kg38kg38kg38kg38kg38kg
Operating pressure< 4bar< 4bar< 4bar< 4bar< 4bar< 4bar< 4bar< 4bar< 4bar< 4bar
Design life> 25 years> 25 years> 25 years> 25 years> 25 years> 25 years> 25 years> 25 years> 25 years> 25 years
Vacuum tubeHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glassHigh-borosillcate glass
Tube diameter58mm58mm58mm58mm58mm58mm58mm58mm58mm58mm
Tube length1960mm1960mm1960mm1960mm1960mm1960mm1960mm1960mm1960mm1960mm
VacuumP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2PaP = 5 x 10 -2Pa
Tube strengthTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstoneTested to withstand a 25mm hailstone
AbsorberWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/ALWavelength Selective Coating AL-N/AL
Efficiency> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)> 93% (optimum)
Tube warranty25 years25 years25 years25 years25 years25 years25 years25 years25 years25 years
EN/BS standardEN12975EN12975EN12975EN12975EN12975EN12975EN12975EN12975EN12975EN12975

Performance:
 
Sunstore-180, Performance

 
Sunstore-180, Wiring

 
Sunstore-180, Installation

 
Sunstore-180, Dimensions

Redring Sunstore Solar Systems / Codes

  • Redring Sunstore 2 panel solar system (Pitch roof) / 47786501
  • Redring Sunstore 2 panel solar system (Pitch roof, Butterfly) / 47786502
  • Redring Sunstore 3 panel solar system (Pitched roof) / 47786503
  • Redring Sunstore 3 panel solar system (Flat roof/wall) / 47786504
  • Redring Sunstore 4 panel solar system (Pitched roof) / 47786505
  • Redring Sunstore 4 panel solar system (Pitched roof, Butterfly) / 47786506
  • Redring Sunstore 4 panel solar system (Flat roof/wall) / 47786507
  • Redring Sunstore 4 panel solar system (Flat roof/wall, Butterfly) / 47786508
  • Redring Sunstore 5 panel solar system (Pitched roof) / 47786509
  • Redring Sunstore 5 panel solar system (Flat roof/wall) / 47786510

Redring Sunstore Solar Accumulators (to match with Solar System size) / Codes

  • Sunstore HX - Redring Solar Heat Exchanger & Hi Flow Blender (for existing cylinders) / 47786601
  • Sunstore-180SC - 180L Redring Vented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786602
  • Sunstore-180TC - 180L Redring Vented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786603
  • Sunstore-180TI - 180L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786604
  • Sunstore-180TT - 180L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786605
  • Sunstore-210SC - 210L Redring Vented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786606
  • Sunstore-210TC - 210L Redring Vented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786607
  • Sunstore-210TI - 210L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786608
  • Sunstore-210TT - 210L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786609
  • Sunstore-250SC - 250L Redring Vented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786610
  • Sunstore-250TC - 250L Redring Vented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786611
  • Sunstore-250TI - 250L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786612
  • Sunstore-250TT - 250L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786613
  • Sunstore-300SC - 300L Redring Vented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786614
  • Sunstore-300TC - 300L Redring Vented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786615
  • Sunstore-300TI - 300L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Single coil, twin IH) / 47786616
  • Sunstore-300TT - 300L Redring Stainless Unvented Solar Accumulator & Hi Flow Blender (Twin coil) / 47786617
  • Sunstore-PoolHX11 - Redring Pool Solar Heat Exchanger (11KW) / 47786618
  • Sunstore-PoolHX22 - Redring Pool Solar Heat Exchanger (22KW) / 47786619

Redring Solar Tracker option pack (includes full system as above) / Codes

  • ST2-LZ4 - Redring Sunstore Tracker 4 panel solar system pack / 47786701
  • ST2-LZ6 - Redring Sunstore Tracker 6 panel solar system pack / 47786702
  • ST2-LZ8 - Redring Sunstore Tracker 8 panel solar system pack / 47786703
  • ST2-LZ10 - Redring Sunstore Tracker 10 panel solar system pack / 47786704

Popular Optional Extras / Codes

  • ST2-VK1 - High Flow blender Valve kit / 47786705
  • ST2-BC1 - Combi Boiler Conversion Kit / 47786706
Our solar collector system is flexible enough to suit almost any application, large or small, traditional or Combi heating systems, Gas or Electric, vented or un-vented.

1. Firstly determine where the solar collector can be located. South facing is always preferred, with South-East or South-West perfectly acceptable. To facilitate any of these locations; sloping roof, flat-roof and vertical walls can all be used by choosing one from our range of unique mountings.

  • Pitched - For normal sloping roofs with panels mounted one above the other
  • Flat roof / Vertical - Brackets to allow installation on either flat roofs or vertical walls
  • Butterfly - Panels mounted side by side to suit different shaped roofs

If no south, south-east or south-west locations are available, a larger system should be selected for east / west facing locations.

2. Next determine the size of system that is required. Size can be calculated from the number of bedrooms, or the number of people, or the existing cylinder size (which
should have already been sized for the
application).

There is no minimum size as any Redring
Lazer II will provide free hot water.
For maximum effectiveness always select the largest system for any given application. i.e. for a house with two people but four bedrooms select the LZ-210 or LZ-250. For an existing cylinder
of 110lit for a house with 5 people select the LZ-210.

Where there is no existing cylinder or the existing cylinder will not be used, always match the cylinder size to the solar system as per the range tables featured below under "further details". When using an east / west facing location on a sloping roof, with an angle of less than 35 degrees, you should use the product selection for south facing locations. Angles
greater than 35 degrees should use the east / west product selections.

3. Decide if you can use the existing cylinder in the property or would prefer to purchase a solar-prepared system cylinder.

If the current cylinder is in good condition and is currently providing good service and sufficient hot water, it can be converted to use an external
heat-exchanger that requires no additional pumps. By using two patented flanges that fit the cylinder wall, the heat exchanger can be fitted
quickly and easily to almost all existing cylinder brands; removing the need for a pre-feed cylinder or replacement of the existing cylinder. See the range tables featured below under "further details" for existing cylinder converters, Combi boiler
conversion kits and optional extras.

If your require or would prefer to install a solar-prepared cylinder you should first select the size using points 1 and 2 above and then determine whether you require a vented or un-vented model based on the plumbing configuration of the house
or building. All our cylinders, both vented and unvented are designed specifically for use with solar hot-water systems and include a high efficiency solar coil for improved heat-transfer. They are supplied with CFC-free high insulation foam, an immersion heater and thermostat as well as the necessary compression fittings. We can also supply an automatic blender valve for all systems. The blender will conserve the hot water supply and regulate the temperature of water reaching the taps. Please note that blender valves can reduce flow-rates.

Ordering
To place an order, discuss individual requirements or for help with making your selection please call:

Sales - 0844 372 7750
Technical - 0844 372 7766

Also available is a simple domestic survey form, to complete and return; allowing us to specify the system for you.

Design Service
Redring is available to help with designing your solar system, whether a small domestic installation or the largest industrial application.

Redring Lazer II Solar Collectors:
  • ClearSkies accredited (ST1003)
  • Highest efficiency vacuum tube technology
  • 25 years guarantee for the vacuum tube
  • Grants available from www.lowcarbonbuilding.org.uk
  • Digital ‘smart-logic’ controller with remote display




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