Cooker extractor hood issue

[tfish]

The Cooker Extractor hood I have to go in my kitchen states "use a 125mm vent kit if ducti ng outside"

This would require a 5" (chimley) pipe venting out side.

Iv already ran a 4" soil pipe for the chimley.... I can reduce down to fit this but I am not even aware of a soil type pipe available in a 5 inch size?

Can you get a soil in 5" or is it required that you use something else to match up with this 125mm inner ducting kit

 

[Terry7556]

screwfix catalogue spring 2012 page 399 item 17489 125mm cooker hood kit £10.41
cant see a length quoted or if thats a flexible hose
is that what you had in mind

 

[tfish]

Sorry i didnt make it clear.

125mm = 5 inch.

You cant get a 5 inch soil pipe as far as I know.

Iv already run a 4 inch soil so I will have to reduce the 125mm (5 inch) down to fil my already fitted 4 inch soil chimley.

What I wanted to know is "what pipe should I have used" to connect to the 125mm kit, because I dont know of a soil that comes in 5 inch

 

[David937]

You should have used 125mm ducting like this:

http://www.screwfix.com/p/round-pipe-125-x-350mm/54391

and the relevant fittings:

http://www.screwfix.com/c/ventilati...w&cm_mmc=AffiliateWindow-_-DeepLink-_-Na-_-Na

...of course you could use the 125mm cooker hood kit too.

The cooker hood will have been designed to use 125mm ducting, I would expect performance to be reduced if you're going to use 100mm.

 

[tfish]

Roget that.

I wasnt aware of this kind of pipe...

You live and learn!