What are the advantages / disadvantages of water mist compared to gas systems?
The advantages of water mist compared to gas systems are: 1) Water mist is non-toxic; 2) Water mist provides cooling; 3) Pump-equipped water mist systems are able to provide continued fire fighting, and multiple system activations; 4) Water mist systems are less sensitive to ventilation and openings. As a result, water mist systems are more suitable for installation in open rooms than gas systems and could be configured in zones like sprinkler/spray systems; 5) Water mist systems may in many cases be activated before gas systems normally are activated causing less damages due to fire. The disadvantages of water mist compared to gas systems are: 1) Water mist systems are most efficient when the fire is directly exposed to water mist sprays; 2) Water mist systems have larger and more complex piping configurations; 3) Water mist systems may cause water damage; and 4) Since heat is required to vaporize water mist, small fires in enclosures may not be extinguished; 5) Water mist systems may