Trust in experience...

...your partner in solar thermal control technology since 1977!

Nature as ideal…
Solar thermal technology taps the infinite energy resources of the sun to face the ecological responsibility of tomorrow. The RESOL product range includes a range of high-class solar thermal and heating controllers as well as a broad variety of accessories for the efficient use of energy. All RESOL products are future-oriented, sophisticated and unique in their design. Just like our ideal: nature!


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Strong roots to grow...
Ever since the founding of RESOL in 1977, Rudolf Pfeil has been managing the enterprise. What began as a pioneer company in the solar business, developed into the market leader with 100 employees and a worldwide network of distributors. Today, RESOL products optimise the efficient use of more than 3 million systems in over 60 countries. Traditional values such as honesty, respect and responsibility are the basis for success and continuity in all external and internal relations.

We set standards…
Sustainable growth prospers on a solid basis – so the innovations of today become the standards of tomorrow. Our research & development division with its extensive lab and testing facilities is our own in-house think-tank. Co-operations with universities and research institutes boost the technological exchange. Top-of-the-range production lines and a sophisticated quality management warrant the best possible products. Several awards and the ISO:9001 certification confirm our course into the future.

Letter of equivalency

 Rheinland CERT ISO 9001  HEATINGlabel VdZ  Plus X Award 2013  Plus X Award 2012  iF - product design award 2012  deutscher Designpreis  reddot design award - honourable mention 2011  DESIGN PLUS powered by ISH 2011  Intersolar09 Award  iF - product design award  reddot design award - winner 2005  iSH DESIGN PLUS Roter PunktSolar-Unternehmen 2000 iF Design Award - Winner 2001

Functionality, quality and aesthetics have always been the decisive principles of RESOL products. Our many awards are the proof – and they reward the close and long standing cooperation with rosenthal design