For homeowners looking to heat their house efficiently and in a climate-neutral manner, solar thermal systems are indispensable. This sustainable heating method is gaining worldwide use on more and more roofs. The market offers a wide range of options, from traditional flat-plate collectors with often low efficiency to highly efficient full-vacuum tube collectors like those produced by AKOTEC.
To avoid excessive solar yields in the summer and achieve a high efficiency even in winter under diffuse light, more and more homeowners are opting for vacuum tube collectors.
Particularly during the increasingly hotter summers, owners of solar thermal systems get the most benefit and enjoy ever-higher yields from their solar systems. The energy generated can then be used for domestic hot water heating or heating support. However, to still achieve noticeable solar yields in winter, solar thermal systems need to be dimensioned quite large. This often leads to an excess of heat produced during the summer months. To prevent damage to the system, excess heat must be redirected to radiators or oversized storage tanks. From both an energy and economic perspective, this is not efficient.
The global manufacturer of vacuum tube collectors, AKOTEC, offers the perfect solution. The heat pipe tubes in AKOTEC solar collectors have a unique, integrated overheating protection, making them the safest tubes in the world. While conventional systems only shut off when overheating occurs, AKOTEC solar collectors have a physical overheating protection for the tubes.
Each tube automatically shuts off at 100°C. From a technical standpoint, this is quickly explained: Inside the vacuum tube is a cycle with a copper heat pipe filled with a special fluid. The amount of fluid in the tube is calibrated so that the solar system does not exceed 100°C. This physical principle thus protects the solar system even in the event of a power failure and is unique on the market.
Thanks to this unique technology, the solar expansion vessel and storage tank can be smaller, ensuring that only the required amount of energy is produced during the summer. Additionally, the tube’s temperature limitation prevents dangerous steam hammering, known as cavitation, during system shutdown. Consequently, the components are not subject to wear and tear.
Due to the lower thermal load, the heat transfer fluid also lasts longer. Therefore, owners of AKOTEC solar systems not only gain safety but also invest in a product that guarantees consistent high yields for 25 years.
AKOTEC provides a 20-year manufacturer warranty on its collectors, all of which are fully manufactured in Germany.
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