Ordinary members can only be manufacturers within the European Community of gas infrared heaters, which are mainly used for industrial and commercial applications and who are prepared to support the objectives of the association.

Extra-ordinary members are manufacturers or sellers of other infrared heating systems or suppliers of components within or outside the European Community. Extra-ordinary members can be as well sales organisations for gas infrared heaters, Government associations, scientific institutes, associations and engineering offices, consultant engineers and private persons.

Extra-ordinary members have no voting rights in the plenum.