Island Extractor Fan Installation

Gimlet

Hi all, long time since I've been on here but we are having some building work done at home including a new kitchen and it has thrown up a possible issue.

According to the current design the hob is going to be installed directly underneath an RSJ. I'm wondering if this is going to limit us to a recirculation extractor or if a proper one can be installed with the ducting arranged to work around the RSJ? (there are no other issues - close to exterior wall and joists running the right way etc.)

Does anyone have any ideas?

Gloomendoom

I have seen some which extract down into the unit. Ducting it out under the floor might be a bigger problem than the RSJ though.

Innys

Gloomendoom wrote: »

I have seen some which extract down into the unit. Ducting it out under the floor might be a bigger problem than the RSJ though.

I've seen these too. They cost the earth, though, and aren't nearly as effective as a ceiling mounted extractor.

I'd avoid a recirculating extractor too because the stale air is not removed.

I'd investigate the possibility of routing the ducting, if I were you. If necessary, you could install the motor somewhere along the ducting in the ceiling rather than in the extractor itself, thereby making the extractor smaller.

CKdesigner

Hi

Just been learning about these Falmec Ionising extractors. The whole point is that they don't duct out and they do an amazing job of removing the grease, moisture and smells from the room without sucking all the heat out of the room. It would seem the way forward for extraction.

CK

ryder72

I'll go a step further and state that we have installed a couple of these now and have one on display. They really are quite good and looks the dogs ....... Leaving them on for about 30 minutes almost completely got took out smells from cooked bacon. Pretty impressive.

Gimlet

Thanks for all of your responses :beer:

I want to avoid downdraught as I don't want to lose the cupboard space and by all accounts their performance is poor.

Those Falmec look interesting but I suspect way beyond my budget. Are they the only ones offering this technlogy? Also I notice they install via a plate on the ceiling so presumably the RSJ is going to be a barrier to them too :undecided

dampdaveski

Hi gimlet,
If there is a bit of space either underneath or above your RSJ you could use flat ducting (obviously I havent seen it, so apologies if i'm suggesting something impractical)
A typical example is http://www.bes.co.uk/products/180.asp
I use domus ducting all the time and it is pretty good, however i've never used the company i've provided the link for.
something else to think about

Good luck
DD

ryder72

You can get 15-18mm ply fitted below the RSJ to get some fixings in to secure the Falmec hood to the ceiling.

I dont know of anyone else using this technology that also makes product of the quality that Falmec do.

Gimlet

Cheers DD will have a chat with the builder when he's next round to see if we can make it work with that type of ducting.

Ryder where are you based? Wouldn't mind seeing the Falmec and getting an idea of cost.

bluesnake

CKdesigner wrote: »

Just been learning about these Falmec Ionising extractors. The whole point is that they don't duct out and they do an amazing job of removing the grease, moisture and smells from the room

This is good sales patter on the pdf, but just an beautified recirculating air filter that at contains a carbon filter and grease screen, like they all do, probably special carbon filter replacement modules -hard to get? expensive?

Ioniser is the novel bit, but many have found that they cause dirt(dust) areas, often at earthed metallic items due to a charged item being attracted to them.

Usually you want the heat and especially the moisture when cooking and boiling to be removed, rather than recycled, otherwise you will get condensation and mould possibly through the house

CKdesigner

bluesnake wrote: »

This is good sales patter on the pdf, but just an beautified recirculating air filter that at contains a carbon filter and grease screen, like they all do, probably special carbon filter replacement modules -hard to get? expensive?

Ioniser is the novel bit, but many have found that they cause dirt(dust) areas, often at earthed metallic items due to a charged item being attracted to them.

Usually you want the heat and especially the moisture when cooking and boiling to be removed, rather than recycled, otherwise you will get condensation and mould possibly through the house

I'm a great advocate of ducting out extractors properly, any of my previous posts about extraction are unwavering about this. BUT when you actually think about it what you actually want is a cooker hood that PROPERLY removes the grease, moisture and smells that you generate while using your hob whether the extractor is ducted out or not is really irrelevant you just need it to do the job properly.

Look at it another way - boiler technology these days is quite amazing with heat exchanging systems on the exhaust and all sorts of energy saving enhancements, and now a good modern boiler will produce an exhaust with virtually no heat, so incredibly efficient. So the consumer buys one of these lovely modern boilers then bangs a hole in the kitchen wall for an extractor to suck all the warm air out that the boiler has so carefully and efficiently produced!

I'm not sure but I can quite easily see this kind of cooker hood becoming the norm in the not too distant future.

CK