HL 350 Oil Burner Demonstrator
1 trolley,  2 transparent oil tank,  3 expansion vessel,  4 cold water circuit connections (to dissipate the generated heat),  5 water meter,  6 heat exchanger,  7 circulating pump,  8 thermometer,  9 boiler safety group,  10 measuring block with digital displays,  11 boiler control unit,  12 steel boiler with viewing windows,  13 thermocouple,  14 double-strand oil filter