Renovation solutions
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Renovation solutions

On this page you can read more about our renovation solutions and consult or download the accompanying documentation.
Do you have a question or would you like non-binding advice about a specific solution for a renovation project? Our specialists are happy to advise you!
For direct telephone support, call our sales support on telephone number 043 40 99 500, available from Monday to Friday from 8 am to 4.30 pm. You can also send your question by e-mail to or via this contact form.

Overview renovation solutions

Prefab with pre-assembled heat pump connection

Cox Geelen developed a PREFAB® chimney with heat pump connection, which can be used in new construction projects, but which is also very suitable for renovation projects. The air heat pump, intended for both heating and hot water supply, minimizes noise nuisance in the house at this location. read more


Efficient shaft renovation for multilayer construction without demolition or breaking, using an existing shaft, shunt channel or the CFS channel. Read more or mail for advice from our specialists to

Fire rated wall plates
Fire rated wall plates

Fire rated wall plates with integrated fire protection seal

Cox Geelen's round fire-resistant wall plates are not only flame proof but also heat insulating, a must in flue duct renovations!
  • for connection to the CoxHYBRID® CLV PP system
  • for connection to the flexible plastic CoxDENS® PP Flex
  • for connection to the concentric system CoxDENS with CONNEXT®
CONNEXT X3 Push-Fit system
CONNEXT X3 Push-Fit system


Plastic/plastic push-fit flue gas system. Suitable for connecting to modern condensing boilers concentrically to a CoxDENS® wall plate or ceiling plate.

CoxDENS® PP Flex

PP Flexible pipe in diameter 60 mm or 80 mm, for connection to renovation chimneys and chimney covers.

ECONEXT® Chimney cover

Schoorsteenkap voor renovatie van rookgasafvoer, gebruik makend van de bestaande uitmonding op grespot of gemetselde schoorsteen.
  • ECONEXT® Chimney cover informatie
  • ECONEXT® Chimney cover brochure
  • ECONEXT® Chimney cover leaflet