How are fire sprinklers activated? Next Question Answer: Heat Sonitrol of Ft. Lauderdale Answer: Heat sensors or fusible links Hood Technologies Fire Safety I nc Next Question Find Local Pros Free Residential Fire Sprinkler Installation Cost Estimates Related Questions How much does it cost to install fire sprinklers in a house? If one fire sprinkler head is activated, will they all go off? Will smoke set off my fire sprinkler system?Top answer: No, never What is your opinion of the American Fire Sprinkler Association (AFSA)?Top answer: No opinion/Never heard of them How Much Does It Cost to Install a Fire Sprinkler System? Related Topics Commercial Fire Sprinkler Installation Residential Fire Sprinkler Installation