Our solar plants are not from a cheap mass production, but rather self-developed and high-efficient products, which are tested regularly, for example with the tightened hail storm test, by a foreign institution for safety and quality. We strictly follow the Eco-Design rules, to produce even more efficient products and provide the collector yield label, that shows with one glance what our products have to offer when it comes to power and outcome. Get more information about our products and their characteristics. If you have any further questions, we are happy to help you personally at any time.
Solar collectors must be insulated, so that the collected heat from the sun's rays is not immediately returned to the environment. Flat-plate collectors are insulated with special insulating materials. Rock wool is used very often, because it has a good insulating effect, but is very poor compared to a vacuum. In order to further improve solar collectors and their heat losses, vacuum tubes have been developed. There are single-walled and double-walled vacuum tubes on the market. The majority of collector manufacturers use double-walled vacuum tubes.
Security against hail damage
We not only offer our customers high-quality, efficient collectors, but more so security against hail damage. The frequency and intensity of storms in Germany increases. Especially thunder, strong rain and hail can lead to big damages to houses and installed plants. In order that our customers can be easy with the topic hail storm, we checked the NARVA tubes with a special endurance testing by the TÜV Rheinland. In the past the collectors have resisted 25 mm ice balls with a speed of 83 km/h. During our new hail storm test, with the hail resistance level of 4, the collectors, especially the tubes, were shot by 40 mm ice balls with a speed of 100 km/h. You can see the test with a high speed camera HERE!
Having environmentally friendly solar plants doesn’t only mean that they reduce emission, but more so that they were designed after the Eco-Design rules and that they have a collector yield label. We want to do more than just make a small contribution to environmental protection and not just manufacture solar collectors for residential and commercial applications. We want to respect and value the people and the environment, especially when it comes to the production and development of our high-efficient products. To show our customers very clearly, how efficient our collectors are, the are marked with the collector yield label.
The aim is to increase the efficiency of energy-related products by laying down minimum efficiency standards. This contains a labeling requirement in form of labels for heating devices.
These labels do already exist on household and electro appliances. Comparability is created through the classification into energy efficiency classes and awarding of the product labels
that have a similar purpose. What has been applied for household and climate appliances as well as pumps becomes effective on the 26th September 2015. The requirements will be raised in
the following years. The new Eco-Design rules are based on the directive 2009/125/EC, EU-regulations no. 811/2013 and no. 812/2013.
The following product groups are affected:
The collector yield label is an optional product label for manufacturer of solar thermal systems. It enables consumers to catch up on performance and earnings power of different solar
collectors to find the most suitable collectors for their needs and their specific building and which it requires. The well-known energy labels e.g. on refrigerator and washing machines
inform customers concerning the energy consumption of the product and categorize them into different classes. The scale ranges from red for the worst energy class to green for a very low
energy consumption. However the collector yield label informs about the heat yield of the product.
The scale is completely green because solar thermal...
collectors consume practically no energy. With these information the collectors can be compared according to their annual efficiency and the possible savings. The yields of the collectors date from the Solar Keymark data sheets published by DIN CERTCO . The collector yield label relates to the ErP-Efficiency Label from the European Union. With the collector yield label, manufacturers call attention to the progressiveness of the solar thermal energy and its clean technology. The use of solar collectors can optimize the energy balance and enable huge savings to the homeowners.
Gefördert durch das Ministerium für Wirtschaft, Arbeit und Energie aus Mitteln des Europäisches Sozialfonds und des Landes Brandenburg. Mehr erfahren
Funded by the Ministry for Economic Affairs, Labor and Energy with funds from the European Social Fund and the State of Brandenburg. Read more