Thermal insulation products for heating appliances

These special thermal insulation products may be used as thermal insulation or substitutes for masonry facing and thermal insulation on stationary heating appliances assembled on site (e.g. stoves and fireplaces).

Regulatory framework

In this work area, DIBt grants national technical approvals (abZ) and/or general construction technique permits (aBG).

Due to the large number of design variants and installation situations, the verification procedure for the use and application of thermal insulation products for heating appliances is defined as part of the approval and permit procedure.

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

  • abZ/aBG
  • Z = new decision | E = supplement | Ä = amendment | V = renewal | G = valid until
    Subject concerned Applicant Decision no. Validity
    from / to
    Wärmedämmplatten "Porrath 900"

    Aug. RATH jun. GmbH

    - Chamottewaren- und Thonöfenfabrik -

    Walfischgasse 14

    1015 WIEN


    Z-43.14-030 Z: 16.04.2021
    G: 24.09.2023
    Wärmedämmplatten "SILCA 250 KM"

    Silca Service- und Vertriebsgesellschaft

    für Dämmstoffe mbH

    Elberfelder Straße 200a

    40822 Mettmann

    Z-43.14-117 Z: 06.07.2021
    G: 24.09.2023
    Wärmedämmplatten "Prowolf"

    Wolfshöher Tonwerke GmbH & Co. KG

    Wolfshöhe 2

    91233 Neunkirchen am Sand

    Z-43.14-128 Z: 24.08.2021
    G: 24.09.2023
    Wärmedämmplatten "Thermax SN 400"

    Techno-Physik Engineering GmbH

    Schürmannstraße 27-31

    45136 Essen

    Z-43.14-131 Z: 20.02.2020
    G: 24.09.2023
    Wärmedämmplatten "PROMASIL®-950KS"

    Promat GmbH

    Scheifenkamp 16

    40878 Ratingen

    Z-43.14-139 Z: 24.01.2018
    G: 20.02.2023
    Wärmedämmplatten mit der Bezeichnung "SkamoEnclosure Board" zur Anwendung als Ersatzdämmstoff für Feuerstätte nach TR-OL

    Skamol A/S

    Østergarde 58-60

    7900 Nykøbing Mors


    Z-43.14-449 Z: 24.09.2018
    G: 24.09.2023

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