Cooker extractor fan using old chimney?

spannerzone

Looking to open up a chinmey brest in the kitchen and put an electric cooker in there. It used to have an oil burning boiler that vented up a metal flue liner and out via a chimney pot.

I can appreciate a liner might be needed as damp air in an old house chimney can't be good but will an extractor fan have enough ooomph to vent up a 30foot chimney?

Due to very awkward kitchen layout I can't see another route to get the extraction outside.

Gloomendoom

It might even work through convection without a fan. Bear in mind that all the hot moist air that goes out will need to be replaced by something, usually cold air, coming in.

phill99

I think it's a bg ask for a tankard Coker hood to push moisture etc up a 30 ' chimney. You would e best contacting the manufacturers technical dept.

Gloomendoom

Another issue is the possibility that moisture will condense on the flue liner and run back down.

southcoastrgi

Gloomendoom wrote: »

Another issue is the possibility that moisture will condense on the flue liner and run back down.

yes thats exactly what will happen, cooker exract ain't designed to pump that far but like others have said check with the manifacturers but i'm guessing the answer will be no

spannerzone

Thanks all, that was my main thoughts, as the air with moisture rose up it might cool then the water content might come back down again.

I've googled and found mixed results, some say it'll be fine, some say it needs a more powerful fan than standard etc.