Related by context. Frequent words. (Click for all words.) 68 flue 66 chimney 58 ductwork 57 vents 57 water heater 57 wood stove 56 propane tank 56 attic 56 combustibles 56 furnace 54 exhaust pipe 54 engine compartment 54 heater 54 combustible materials 53 duct 53 crawl spaces 53 stove 53 fireplace 53 air ducts 53 woodstove 53 ventilation 52 space heaters 52 baseboards 52 carbon monoxide detector 51 dehumidifier 51 manhole 51 ducts 51 chimneys 51 faulty wiring 51 clothes dryer 51 electrical wiring 50 smoke detector 50 wick 50 ignition 50 hose 50 extinguisher 50 radiant heat 50 catalytic converter 49 radiator 49 smoke alarm 49 sump 49 burning stove 49 flammable materials 49 manhole cover 49 electrical outlet 49 charcoal grill 49 sump pump 49 sprinkler system 49 blower 49 flammable 49 nozzle 49 smoke detectors 49 electrical wires 48 vapors 48 extension cord 48 faucet 48 radiators 48 carbon monoxide 48 eaves 48 electrical cords 48 fire extinguisher 48 extension cords 48 valve 48 copper piping 48 wood stoves 48 ducting 47 cavity 47 dryer 47 heaters 47 electrical malfunction 47 gutters 47 stovetop 47 ventilating 47 garden hose 47 wood burning stoves 46 hydrant 46 boiler 46 gasket 46 sprinklers 46 fireplaces 46 condenser 46 manholes 46 oven 46 transformer 46 caulk 46 furnaces 45 hydrants 45 downspouts 45 ventilated 45 septic tank 45 Chimney 45 insulation 45 cooker 45 air conditioner 45 smoke alarms 45 Fireplace 45 Sprinklers 45 creosote 45 mold spores 44 plumbing fixtures 44 grout