Sievert Gardener Blow Torch PRM2230 The Gardener Burner should be slowly swept about 5cm above the weeds which should be heated not burnt. The cell walls in the plant burst and the plant dies of drying out. After 2 to 3 days the weeds will have wilted completely.Fits PRM2204 gas cartridge. Gas Consumption 300 g/hLength 770mm (30 in)Weight 750g PRM2230