Related by context. Frequent words. (Click for all words.) 58 welder torch 57 welding torch 56 igniter 55 propane burner 55 Propane tanks 54 electrical malfunction 54 igniters 53 roofing tar 53 gasoline vapors 52 flammable substances 52 acetylene 52 Acetylene 52 ignited 52 combusting 51 sprayed foam 51 flammable substance 51 propane cylinder 51 Firefighters doused 50 electrical 50 electrical arcing 50 denatured alcohol 50 combusts 50 faulty heater 50 isobutane 50 anhydrous ammonia leak 50 acetylene torch 50 highly flammable liquid 50 flameless 50 propane torch 50 ignitable 50 halogen lamp 49 propane tank 49 spontaneous combustion 49 vapors 49 acetylene cylinders 49 flammable vapor 49 compressed nitrogen 49 welding torches 49 butane lighter 49 inflammable material 49 gallon propane tank 49 highly flammable 49 charcoal lighter 49 propane leak 49 oily rags 49 flammable vapors 49 prompts evacuation 48 smoker inhales 48 combustible gases 48 steam boiler 48 combustible liquids 48 gaseous hydrogen 48 propellent 48 unvented 48 flammable gases 48 ignition 48 spontaneously combusted 48 dripped onto 48 gas hob 48 propane canisters 48 vapor 47 stove burners 47 nonflammable 47 Overheated 47 accidentally punctured 47 incomplete combustion 47 soaked rags 47 overheat 47 flammable 47 switchbox 47 electrochemical reaction 47 faulty wiring 47 smoldering cigarette 47 combustion gases 47 flammables 47 flammable liquid 47 vent hood 47 depressurize 47 stove burner 47 hydrogen fluoride 47 Electrical wiring 47 solenoid valves 47 oxidizers 46 propane tank exploded 46 pump nozzle 46 discarded cigarette butt 46 chimney flue 46 propane cylinders 46 combusted 46 Sulfuric acid 46 firebox 46 soot inhalation 46 Flammable 46 degassing 46 melted siding 46 unattended candle 46 By TBT staff 46 transformer 46 detonating cord 46 vapor cloud 46 transformer exploded