For accessories in the field of heating appliances that due to their innovative functions have not yet been covered by technical specifications, regulatory verification of fitness for use/application

A single-room heating appliance is a heating appliance which serves to heat the room in which it is placed or installed. Heating appliances, chimneys

Supply ventilation units serve to supply indoor spaces with filtered and possibly preheated outside air. Exhaust ventilation units serve to remove exhaust air from indoor spaces. Ventilation

Ventilation units with heat recovery serve to supply and remove air from indoor spaces while transferring the residual heat from the exhaust air to the supply air via a heat exchanger. Ventilation

Single-room ventilation units ensure a controlled air exchange between the building interior and the outside environment which is independent of the ventilation behaviour of the occupants. Ventilation

A prefabricated stair system consists, e.g., of steps, landings, stringers, handrails, balustrades and fasteners. The following stair systems are distinguished: stairs supported by load-bearing bolts,

Connectors (clamp connectors and/or couplings) for drains are designed to connect pipework parts such as pipes and fittings permanently such that no waste water can escape from the joints. In the case

Sealants for drains serve to prevent, in connection with pipework parts such as pipes and fittings, the leakage of discharged waste water. In the case of underground drains, the sealant also ensures t

Trenchless rehabilitation techniques are increasingly being applied in wastewater engineering today. For the rehabilitation of underground supply pipes and drainage pipes, techniques such as lining wi

Inner linings are prefabricated elements used for on-site lining of drains and manholes. They usually serve to improve corrosion protection. Inner linings must be fixed durably and tightly to the drai

Infiltration elements form part of the property drainage system. They serve to store or retain rainwater. If infiltration elements are used on a property, it must be ensured that no dangers to the adj

Central heating appliances ( Sammel-Feuerstätten ) are heating appliances that heat a medium (usually heating water) and provide warmth to a building via the ductwork and radiators. They are not to be

Thermoplastic moulding compounds are used in a variety of ways to manufacture semi-finished products and construction products. They are used, for example, in the manufacture of bulk silos, cesspits a

Filling systems are composed of branched filling lines (pipes) and are used to fill several tanks of a heating oil system or diesel storage system simultaneously (battery installation). Plastic tanks,

Plastic pipes are especially suitable for conveying certain liquids hazardous to water because they often have a more favourable corrosion behaviour than metal products and hence are resistant to vari

Liquid-tight collecting trays and devices are enclosures serving to meet the requirement for secondary containment under water law. They are used to collect and retain substances hazardous to water le

Special fire-resistant components in ventilation technology are service duct components consisting mainly of a supporting tray, cladding, supply and discharge lines, electrical cables and ventilation

Fire protection systems mainly consist of straight air duct sections, fittings, seals, connectors and fasteners, classified or unclassified wraps and shut-off devices for fire and smoke etc. They may

Fire dampers are installed in air ducts of ventilation systems in the area of fire-resistant separating elements to prevent the spread of fire and smoke along the ductwork to other fire compartments f

With their very low thermal conductivities, insulation products play an important role in thermal insulation and in improving the energy performance of buildings. A multitude of different materials ar

Pipes, fittings and inspection chambers are parts of rainwater or waste water drains for property drainage. They serve to ensure the safe discharge of surface water and/or waste water from the propert

A fire-resistant damper of special construction technique and application is a construction technique for sealing fire compartments. It mainly consists of a shut-off device integrated into a fire-resi

Timber concrete composite systems consist of a timber element and a concrete slab that are joined together in a shear-resistant manner. The shear-resistant bond can be achieved, for example, using scr

Temporary structures are repeatedly erected and taken down. They include, for example, bleachers, tents and rides for fairgrounds. Temporary structures are special structures within the meaning of Sec

Membrane structures are composed of thin, fabric-like materials. Due to their low self-weight, they are suitable for spanning large areas. They are used, e.g., as space-dividing, thermally insulating