The detail roofing kits feature a heavy duty burner ideal for drying bitumen laying and detail work on roofs road works and other heat demanding applications like preheating before weldings melting snow and ice etc the kit comes complete with a 4 or 10 metre hose and a hose failure valve the burner and steel neck tube are fixed to the handle and are not interchangeable ideal for engineering and detailing work burner diameter 50mm heat input 86k w