As one of the few full vacuum tube manufacturers in the world and with over 15 years of experience, our member company NARVA LichtQuellen GmbH guarantees that the products are highly efficient and durable with a minimum 10-year manufacturer's guarantee.

The NARVA solar thermal full vacuum tubes convert the sunlight hitting the absorber into heat and direct it into the collector of the collector.
The NARVA Heat-Pipe solution is intrinsically safe and switches off automatically, which protects the system from overheating.