Heat with style.

Modern bathroom radiator mounted on the wall

For a discerning design and practical advantages in the bathroom. The unusual serpentine shape allows hand and bath towels to be hung from the side, ensuring that they are always kept warm. Characteristic of Cobratherm is its clever construction – where there is no need for a second manifold pipe – and the high-quality finish of this excellent bathroom radiator.

The mounting harmoniously matches the overall image of the bathroom radiator. In transitional seasons, Cobratherm can be operated with an electrical heating unit as an option.

Awarded with
EPD – Environmental Product Declaration
Documents & media
Tools & apps

Cobratherm CBT

Modern bathroom radiator mounted on the wall

Radiator for hot water operation

  • Depth: 58 mm
  • 3 heights: 1141, 1421 and 1841 mm
  • 3 lengths: 400, 500, and 600 mm
  • 1-pipe connection via manifold pipe
  • 2-pipe connections from below, centred, with 50 mm hub distance or 150 mm hub distance
  • Including installation set

Cobratherm Watt CBTW

Electric radiator for the bathroom

All-electric radiator

  • Depth: 58 mm
  • 3 heights: 1141, 1421, and 1841 mm (without heating insert)
  • 3 lengths: 400, 500, and 600 mm
  • Including installation set
  • Ready for use with vertically installed electrical heating insert set




Our current product images to download.


You can view all videos on YouTube.

Article master data

Arbonia is a partner of the international HVAC platform This is operated by industry association ARGE – Building digital competence. You will find a whole host of product information from numerous brand manufacturers at . For Arbonia products, apart from an online shop, you will also find countless documents, images, videos, and item data in a variety of formats. 

The product data is available to download in the following formats: 

  • CSV and Excel
  • BMEcat 1.2 (XML)
  • ARGE XML (DQR 9.0)
  • Datanorm 4.0

Tender specification texts


Product performance specifications.

A selection of the latest tender specification texts for Arbonia radiators, trench convectors and ceiling systems is available to export in a total of nine data formats (Word, Excel, RTF, PDF, TXT, GAEB XML, GAEB 90, DATANORM 5, ÖNORM) in the storage-management programme of your choice.


  • Column radiators
  • Home radiator
  • Bathroom radiators
  • Heating panels
  • Convectors
  • Trench convectors
  • Ceiling systems

Tender specification texts HT according to Austrian standard ÖNorm B2063

Here you will find Arbonia tender specification texts according to Austrian standard ÖNorm 2063 – service group 46 radiators – for standardised performance specifications in Austria:

Web navigator

For 2D/3D CAD planning, the VDI 3805 web navigator online in your web browser can be used to generate the required CAD file for Arbonia radiators. The CAD data can be downloaded to CAD programmes such as AutoCAD, Revit, and Nemitschek, etc. in the following formats: DXF, DWG, IFC, STEP, and RFA. There are also attributes available for the geometries, allowing the data to be used for the BIM process.

You will find more information on BIM in Switzerland under DataExpert BIM.

Web navigator

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