This document, produced by Cegibat, the information center of the French gas distribution company GRDF (Gaz réseau distribution France), provides a detailed list of the operations that need to be performed during the annual maintenance of a domestic gas boiler, from 4 to 400 kW. It presents the operations required by the French regulation (heating systems inspection) and gives further recommendations. It covers checks, cleaning and adjusting of the appliance. It also details the procedure to measure the CO and NOx content of combustion products, as well as to assess the energy efficiency.
To download and read the full document (in French) please click on the links provided below.