Sigma Energy, is specialized in the manufacturing of solar hot water systems and collectors since 1983,using state of the art technology.
The specific type of collectors, are destined for countries similar to Greece’s climate conditions.
Our company, also manufactures storage tanks from 120L up to 1000L.
The inner surface of the storage tank, has been enamelled with a special inactive material – mixture of inorganic silicon based salts - with no chemicals added (enamelling process).
Forced circulation systems are the most widespread systems , throughout Central and Northern Europe, since low temperatures, consist a restrictive factor regarding the placing of the storage tank. The specific system, consists of the storage tan...
In a well insulated single-family house a large enough collector array and storage tank volume have the capability of delivering a 25% to 30% of the energy needed for hot water and space heating.