Total premixing cast-iron sectionable gas boiler

摘要

Gas boiler with a sectionable heating body (1) made of cast iron having a combustion chamber (12) and a burner situated in the top part, having a burner with a complete premixing chamber and a diffusion module (68) covering the entire upper part of the exchangers, as well as a lower container for recovery (26) and discharge of the condensates common to the outlet of the combustion products and a sealed inner volume (7) forming a closed cell containing the heating body (1) and the burner inside the insulating box. This invention is of interest to boiler manufacturers.