FHW Fachvereinigung Heizkostenverteiler Wärmekostenabrechnungen e. V.

The trade association was founded back in 1977 and sees itself in every respect as an independent representative of the interests of its members. This also means that only specialized companies in this branch are allowed to become members. Manufacturers of measuring devices who do not offer any billing services to end customers are therefore not allowed to become members.