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The water in the thermal store cylinder is heated directly by the boiler to around 60°C – 70°C (this direct connection allows for very fast heat recovery). There are three coils within the thermal store that are linked together externally. The mains water enters the bottom coil and passes through all three coils reaching its desired temperature at the top. This allows the thermal store to achieve an exceptional flow rate which is beneficial if the property has a number of bathrooms & power showers.
There are two tappings in the thermal store to provide heat for underfloor heating. The solar coil is positioned at the "super-cooled" lowest part of the thermal store to ensure maximum solar benefit. This area of the cylinder is not heated by the boiler and is further cooled by the cold water coming from the mains going through the bottom domestic hot water coil. These factors allow for a higher level of contribution from solar energy towards heating, when compared to conventional thermal store cylinders.
The thermal store cylinder is not only the most advanced cylinder on the market
in terms of performance and low running costs but also an ideal way to combine floor
heating and mains pressure hot water. The cylinder is supplied with a manufacturers
lifetime guarantee and is made from duplex stainless steel. The Rayotec solar thermal
store has an industry leading design devised by experts in both the solar and underfloor
heating fields. Its function is simply to obtain maximum efficiency and therefore
the highest savings from the solar system. Our solar thermal store cylinders are
designed to work with solar panels and a boiler but can also be easily adapted to
take additional heat sources such as stoves, back boilers and heat pumps. We also
can supply an all electric thermal store if you don't have a boiler.