Fake chimney breast to house extractor fan

[Pernah]

Hi all!!

I'm in the process of putting together a fake chimney breast to house extractor fan above cooker... seemed pretty straightforward until mrs said she wants worktop clear meaning it needs to be supported from wall - i intend on using 38 x 63 stud timber and would really appreciate advice on...

what screws to use to safely secured to wall?

whats best way to screw into ceiling nt knowing where joist is?

also thought aboout using these brackets and frame in so not visible when plastered:

http://www.screwfix.com/p/heavy-duty-bracket-black-300-x-300mm-pack-of-2/78941

Total dimensions will be from ceiling down 120cm (to bring in line with bottom of wall cabinet on side with 70cm clearance above cooker at front), 125cm wide and 40cm depth.

Here's a crap drawing i done in paint in my album in case above doesn't make sense - many thanks for any advice

Untitled

• Pernah
• 24 Feb 2013
• 2

 

[onecog]

Why don't you buy a cooker hood ?
You can fix it to the wall as well as take up a floorboard above and find a joist or put in a few noggins to fix to as well as screw to the cupboards each side.

 

[Pernah]

Suppose I'm being fussy about looks and personal taste as I prefer the traditional look and the specific extractor fan I liked was the built in type and to be ducted externally and can't afford to change units yet so thought this would be nice to try and get to look like 1st photo below but with units either side when buying new units as in second photo...

Untitled

• Pernah
• 24 Feb 2013
• 2

Untitled

• Pernah
• 24 Feb 2013
• 2

 

[^woody^]

A normal timber frame will be fine. At that width there will be at least one ceiling joist to screw into, and the rest of the weight will be taken by the side timbers and to the wall

You want at least 60mm in to the wall with normal screws and plugs or get some hammer fix screws

Think about the inside as, it will need surfaces angled to direct air to the fan. Otherwise you end up with a greasy mess inside which becomes a fire-risk

As for fire risk, depending on the design, it may be wise to include some fire-resistant sheeting internally (supalux or materboard or aluminnium/SS) but it depends how you are designing and fitting the fan

 

[Pernah]

Thanks Woody, 10mm x 100mm hammer/frame fixing screws it will be - 10 into wall and 4 into ceiling?

Totally overlooked the internal area exposed above cooker - will give more thought with the angle suggestion as fan is only 70cm wide in the 120cm wide opening above 90cm cooker.

Starting to get a bit more complicated now but sure it'll be worth it for the fan which has an auto sensor for steam/heat/odours and alarm for changing filters with 750 extraction rate.

Thanks once again

 

[italia]

some ranges of kitchens have cooker hood carcasses. Maybe use a carcass and modify that to suit your style?