Heating appliance accessories

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 may be required.

No additional regulatory verification of fitness for use/application is required for (accessory) parts of type-tested heating appliances (e.g. automatic combustion control, catalytic combustion chamber building materials etc.).

Regulatory framework

In this work area, DIBt grants:

  • national technical approvals (abZ) for heating appliance accessories that are not covered by a harmonised standard or a European Technical Assessment and for which no Technical Building Rules and no generally recognised technical rules exist;
  • general construction technique permits (aBG) for the design and execution of the corresponding applications.

European Technical Assessments (ETAs) can also be issued for heating appliance accessories that are not (fully) covered by a harmonised standard.

Please also note the relevant provisions of the federal states following MVV TB, Annex 4 (2017/1) or Annex 14 (2019/1 and following).

Application forms

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

Application for a national technical approval and/or construction technique permit (3 pages)

Version: January 2018; Application form

Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages)

Version: January 2018; Application form

Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages)

Version: July 2017

European Technical Assessment (ETA)

To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.

Form for requesting a European Technical Assessment (ETA) (2 pages)

Last updated: 16 June 2022

  • abZ/aBG
  • Z = new decision | E = supplement | Ä = amendment | V = renewal | G = valid until
    Subject concerned Applicant Decision no. Validity
    from / to
    Einrichtung zur Überwachung einer mehrfachbelegten Abgasanlage für den Anschluss von Feuerstätten mit und ohne Gebläse

    Wodtke GmbH

    Rittweg 55-57

    72070 Tübingen-Hirschau

    Z-43.13-302 Z: 23.09.2022
    G: 23.09.2027
    Pelletboxen zur Verbrennung von Holzpellets in Brennräumen und Feuerstätten der Firma Max Blank GmbH

    Max Blank GmbH

    Klaus-Blank-Straße 1

    91747 Westheim

    Z-43.13-355 Z: 23.04.2019
    G: 11.04.2024
    Einrichtung zur Überwachung einer mehrfachbelegten Abgasanlage für den Anschluss von Feuerstätten mit und ohne Gebläse

    Gruppo Piazzetta S.p.A.

    Via Montello 22

    31011 CASELLA D'ASOLO - TREVISO

    ITALIEN

    Z-43.13-455 Z: 17.11.2020
    G: 05.03.2024
    Mehrfachbelegung einer Abgasanlage für den gemeinsamen Betrieb einer gebläseunterstützten Feuerstätte mit einer Naturzugfeuerstätte

    Pellet-Zentrum Vogl e.K.

    Hofreuter Straße 22

    84385 Egglham

    Z-43.13-484 Z: 05.10.2022
    G: 05.10.2027

Ronny Schmidt
Head of Section – Combustion Appliances, Chimneys, Building Services

Phone +49 30 78730-473
Email rsi(at)dibt(.)de

Legal reference documents

Testing, certification, inspection