Advantages: Odourless. Personal (and limited space)heating. No air flow. Characteristics: VAL 6-2 STEP with a step burner. Mobile framework with rotational heat screen on VAL 6-1 STEP. High pressure burner with 15 sec. prepurge control system and 180 sec. postpurge. Photocell flame control. Photocell flame control. Combustion chamber of fibre ceramic. Thermostat operation is possible. 230V/50Hz connection. Room ventilation is required. VAL 6 KB with oversized tank for 16 burning hours.