The Digestion Units Are Compact And Well Insulated To Minimize Heat Transfer To The Surroundings And Allow Fast, Even Heating Thus Giving Good Working Conditions As Well As Saving Energy. The Digestion Block Consists Of Quartz Infrared Heaters On Either Sides . Energy Efficient Quartz Heater And Ceramic Insulation To Retain Heat Inside The Tube. Insert Rack With Handle For Easy Loading And Removal Of Digestion Tubes. Exhaust System With Glass Manifold And Water Jet Pump (Glass Filter Pump)