Matrix for heating and/or cooling room has extruded rectangular pipes with inner and outer coatings consisting of or containing polypropylene, between which oxygen barrier coating is arranged

摘要

The heating and/or cooling matrix (10) has first and second connected composite pipes (12,14,16,18,20) of different diameters with a diffusion and/or permeation barrier coating against oxygen. The extruded rectangular pipes have inner and outer coatings consisting of or containing polypropylene, between which the barrier coating is arranged. An independent claim is also included for a heating and/or cooling arrangement.