Extraction/ventilation for new kitchen

[cyclonebri1]

Under buiding regs is there a certain requirement for forced extraction or can the opening windows cover this?.

The hob will be on and island unit under a vaulted ceiling so an extractor hood or ceing extrator is not an option. I have several alternative ideas but just want to check on the reqs,

Cheers

 

[DevilDamo]

As per AD F1...

http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADF_2006.pdf (Page 10)

Minimum intermittent extract rate

30 litres per second (adjacent to hob); or
60 litres per second (elsewhere)

Continuous extract

13 litres per second (Min. high rate)

 

[JoeMar]

have a look at downdraft extractors.

 

[cyclonebri1]

have a look at downdraft extractors.

I just did Joe £1200

 

[JoeMar]

you are right downdraft extractors are not cheap...

the extractor doenst need to be placed directly above the hob. you could for example run some flat channels on top of wall cabinets and connect is to a powerful centrifugal fan.

good luck.

 

[cyclonebri1]

They certainley aren't.

Plan is to install either 1 or 2 60 ltr'sec units drawing from upper units via soffit type vents in the cabinet top, ie drawing through the cabinet and out of the wall.

My daughterm her project is specific in that she does not want these visible.

We have 2 x Velux windows with trickle ventilation more or less central to the island hob, sound like a plan????????????????

 

[JoeMar]

yeah that will work...

if that was me i would go for a more powerfull fan. something like this perhaps if you have the space to hide it in.

http://www.screwfix.com/prods/63459...or-Fans/Manrose-150mm-In-Line-Centrifugal-Fan

 

[DevilDamo]

60 litres per second extract fans aren't quiet... at all.

And that link... it looks like a car turbo

 

[cyclonebri1]

I actually used one of those in a previous bathroom project, mounted in mid duct in the loft. It certainly was noisey. Most of the units I've looked at are about 40 dba so shouldn't be an issue, cheers