if
any of the kids are in there, no loss. Perhaps the access control would kick in and if anybody was in the room it wouldn't activate.
(tb2571989 dies at precisely, Fri 11 Jun 2010, 12:56, 1 reply)

Generally
Gas fire suppression systems will have a siren and a big flashing light for a minute or so before going off.
(razakel, Fri 11 Jun 2010, 18:27, closed)

or
this /\
(tb2571989 dies at precisely, Fri 11 Jun 2010, 19:04, closed)

different gas systems
it used to be haylon that they used, but they got all health and safety on that since you had to have masks and breathing apparatus.

the newer systems increase the amount of CO2 in the room so that any naked flames are extinguished, but you can still breathe in them.

not sure how much they cost mind.
( flapmeister knows where your mum lives, Tue 15 Jun 2010, 12:54, closed)