"Not had a fire, so cannot comment on whether it works, but can say it's bigger than it looks in the catalogue, & certainly looks like it would stop a kitchen fire. The bracket is now adequate to manage the weight, but still leaves it a bit wobbly. Note that the horn remains loose even when the nut is tightly done up with a spanner. The instructions say 'do not hold the the horn' in use (it will get very cold!) but I cannot see how this would be practical. Hope I never have to find out!"