Engine bay automatic fire extinguisher.

[Rapita]

We would like to fit an auto fire extinguisher in the engine bay of our B34 sail boat.In view of the seemingly high temperatures that occur in there(air temp here in Spain can reach 40 degrees) plus engine related heat.
Does any one have any advice or suggestions for any equipment that will cope in these  circumstances.
Thank you

[MagicalArmchair]

Hey there, I have something like the below for Mirage in the UK. Being clean agent, and not powder, is much better as if it goes off accidentally, it will shut down the engine, but it won't kill it. Dry powder will be sucked into the intake and will damage the engine.

Activation temperature is around 68 degrees C - I would put a heat sensor in your engine bay and see what it reaches. I doubt it will get that high?

https://jemsystems.co.uk/products/fireblitz-automatic-2kg-clean-agent-fire-extinguisher-4?variant=56785072095605&country=GB&currency=GBP&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1&gad_campaignid=21061494428&gclid=Cj0KCQjw7cLOBhDmARIsAGsuA0n_jEjOkcAjvTLaWYEeOb1iOvkVuJwCM0uNL0pBDiWN22IC-UKO2g4aAhXsEALw_wcB

[symphony2]

Not sure why you need an automatic fire extinguisher just because the ambient temperature (or engine room temperature) is high. It is there to deal with fire which is more likely to be an electrical issue. As suggested the activation temperature is far higher than the temperature during normal use.

[Yngmar]

Agreed. An extractor fan is however a pretty good idea in hot climates. Makes the stuff in the engine compartment last longer and the entire boat less hot for less long after stopping (the hot engine block stores a lot of heat).

We fitted a large manual CO2 extinguisher in the galley and a fire (extinguishing) port to the engine room.

And a big blower removing hot air to the outside.

[Diverphil1]

i fitted a fire blitz clean agent one, they go off at around 80 deg, and wont kill everything with corrosive powder if accidently fired off.