Fire alarm

[westward10]

Sounds like the best option. You should also identify the smoke detector as being standalone and not connected to the main system.

 

[Southspark85]

Sounds like the best option. You should also identify the smoke detector as being standalone and not connected to the main system.

Will do thanks for your thoughts

 

[telectrix]

and when the door is propped open with the kitchen fire extinguisher?

 

[freddo]

and when the door is propped open with the kitchen fire extinguisher?

Chain the extinguisher to the wall, chain long enough to spray the kitchen fire, but not long enough to prop the door open.

 

[Devonchris]

If its just a stand alone arrangement and not subject to fire safety approval then something like this may work with a stand alone detector? You would need to ensure that it would fail safe and not compromise the existing alarm/ fire door set up.

Black Dorgard Fire Door Retainer - https://www.safelincs.co.uk/black-dorgard-fire-door-holder/?fGB=true&gclid=Cj0KCQjw4eXPBRCtARIsADvOjY2y8d2q63sHeBeLRy-MUln_zIq7T-6LL8CtE22SCfx9ICdtk_E-xUcaAnsGEALw_wcB

 

[Devonchris]

You need to ensure that the door closes when either the stand alone or main alarm goes off. The acoustic option may be easier than two trigger feeds for the contactor. I suppose it will depend on the sensitivity and volume of the main alarm.