Cooker hoods: how to vent or not to vent?

... but smooth interior is a good choice because you can create much slower bends than are typical for solid ducts.

Reply to
Andy Hall
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I used aluminium duct from BES (125mm). They also do a 150mm.

Reply to
Grunff

If you select "Installation" on the left hand (index) then "Ventilation" on the pop-up menu and finally "Ventilation, Ducting and Accessories". Skip all the rectangular stuff at the top and the circular ducting starts near the bottom of the page.

Hope this helps.

Mark.

Reply to
Mark

You mean the stuff with a spiral wound wire?

I use this and it seems OK (it's well stretched out though).

Mark.

Reply to
Mark

It absolutely trashes the airflow, though.

Christian.

Reply to
Christian McArdle

I got all mine from

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Their catalogue doesn't cover their entire stock so here're the part numbers and prices (exc. VAT) for my stuff:

PVC693WH Connector for 150mm=D8(ID) pipe =A33.40 PVC696WH Pipe Fastener to suit 150mm=D8 pipe =A32.20 PVC690WH 90=B0 bend (PVC) to suit 150mm=D8(ID) pipe =A312.00 PVC1200-6WH 150mm=D8 rigid PVC pipe, 2m length =A310.50

Free delivery for orders >=A310.

(Note: 90=B0 bend looks quite pricey so I may have bought that elsewhere.. BES?)

I bought the outlet plate (gravity flaps) from Screwfix

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- at the time of purchase it didn't feature in the paper catalogues.. this may have changed now.

I did quite a bit of searching round to get the best prices - admittedly this search was limited to the Internet (me being a lazy arse and all) and the local sheds. You might be able to pick up something cheaper from the 'specialists'.

Mathew

P=2ES. Incidentaly, looking at both the BES and FansDirect product codes it would appear that it's pretty much all manufactured by Domus

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whose catalogue is well worth downloaded for the item lists/descriptions and back pressure figures.

Reply to
Mathew J. Newton

Thank you very much.

Amos

Mark wrote:

Reply to
Amos

Oops - just realised I posted a load of symbols which may not come out correctly in everyone's newsreader. Any '=3DA3' is a pound sign, thus the

2m pipe us GBP10.50 etc.

Sorry if this causes confusion...

Mathew

Reply to
Mathew J. Newton

Is it any worse than a 90 degree bend though? What would be a better alternative?

Mark.

Reply to
Mark

You can get types with a smooth internal bore. The cheaper ribbed types cause turbulence in the flow, dramatically increasing resistance.

Christian.

Reply to
Christian McArdle

I haven't seen any like this. Are there any national/online suppliers?

Mark

Reply to
Mark

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