Related by context. Frequent words. (Click for all words.) 56 flammable substances 56 discarded cigarette 54 smoldering cigarette 53 oily rags 53 flammable 53 faulty furnace 53 spontaneous combustion 52 ignitable 52 Careless smoking 52 incorporated therein 52 Zurolo 52 flammables 51 highly flammable 51 thermite 51 Shane Cartmill spokesman 51 naturally occurring radioactive 51 unattended candle 50 ammonia nitrate 50 materials 50 faulty electrical wiring 50 flammable substance 50 ignitable liquid 50 inflammable material 49 flammable liquids 49 meth residue 49 Flammable 49 faulty heater 49 Arson investigators 48 welder torch 48 Upon arrival firefighters 48 incomplete combustion 48 combustibles 48 Firefighters doused 47 highly inflammable 47 improperly disposed 47 combustible gases 47 unvented 47 Arson Unit 47 acetylene torch 47 accelerants 46 accidental detonation 46 False alarms 46 metals alloys 46 spontaneously combusted 46 faulty wiring 46 propane cylinders 46 flammable chemicals 46 nonflammable 46 Fire Marshal Office 46 carbonized 46 flammable materials 46 wiring plumbing 46 dryer lint 45 soaked rags 45 Drug paraphernalia 45 acetylene cylinders 45 blaze 45 electrical malfunction 45 thinners 45 accelerant 45 flammable vapors 45 nonmetal 44 arson 44 fire 44 propane leak 44 nitrocellulose 44 unburnt 44 RF microwave printed 44 fireproofing material 44 americium 44 Propane tanks 44 forensically examined 44 contained 44 mercury vapors 44 inhaling toxic 44 methamphetamine residue 44 Forensic examinations 44 noncombustible 44 Highly enriched uranium 44 burnable 44 Zaccard 44 PCBs polychlorinated biphenyls 44 electrical arcing 44 Toxic chemicals 43 Hazardous 43 creosote buildup 43 roofing tar 43 uncontained engine failure 43 fireproofing 43 corrosives 43 vinyl acetate 43 welding torch 43 Fuel rods 43 polybrominated diphenyl ethers 43 combustible materials 43 flashover 43 electrical 43 petroleum distillates 43 stove burners 43 flammable liquid 42 material