Residential, Single Family Home Fire sprinklers prove worth in home fire (Woodinville, WA) November 13, 2013 viking210 An automatic fire alarm activated just before 3 a.m. on November 3 at an unattended home. Firefighters arrived to the scene and found that the fire, which had started due to a burning candle, had been extinguished by the home’s fire sprinkler system. The development in which the house resided required fire sprinklers installed in each home. There were no injuries reported.