The gas train is Multibloc type, containing the main components in a single unit. Except for the MBC 65 DLE model, a valve seal control (as accessory) can be fitted to the Multibloc gas trains. The MBC 65 DLE Multibloc gas train can be fitted only to the left of the burner.
The Riello 40 GS series of one stage gas burners are set for gas supply from either the right or left hand sides.
Depending on the fuel output and the available pressure in the supply line, you should check the correct gas
train to be adapted to the system requirements.