Venting Fire Doors

23 Oct 2007
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United Kingdom
Hi I need to vent a top-floor boiler cupboard, problem is the fire brigade are insisting on a 30-minute fire door so i cannot vent through the door - even with intumescent vents as it needs to be 30-minute smoke door as well.

I could put a vent through the roof next to the flue but would that be enough? Wouldn't I need another vent at a lower level?

Erm, I don't actually know the make or model of the boiler (should do v soon) but I think it's a 'normal' combi and unlikely not to need vented.

The way I see it any vent, except direct to the outside (ie roof in this case), would screw up the fire rating of the boiler cupboard :(

Any bright ideas?
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the boiler manufactures instructions will tell you if any compartmental ventilation is required. if its a combi its very doubtful any way, if its an open flued appliance then its a different ball game and sujest you seek the help of an RGI>

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