In line extractor for hob

benwatkins · 16 Jan 2020

As an alternative to the traditional bulky noisy hob extractor unit above the hob I would like to install an in-line extractor fan. The idea is to have the fan motor unit out of the way above the cupboards or ceiling and just a compact(ish) vent over the hob.

I'm wondering if anyone has done similar and can offer any advice?

Obviously there would need to be a grease filter to stop the fan getting gummed up. And the fan would need to be powerful enough to draw the air through the filter and be able to withstand the hot gases. I can find most of what I think I need. I'm just struggling with the vent/filter assembly.

ericmark · 17 Jan 2020

We have a hob extractor unit above the hob, it is hardly ever used, except for the built in lights, and when I came to clean it, really did not need cleaning, but son has cleaned his many times, and it is regular used, difference is, he uses gas, we use electric induction hob. With an induction hob only the pan gets hot, in theory we could have insulated pans, and before we went to plastic £5 notes the demo was to place £5 between pan and hob, and it was not damaged.

So in real terms you only need an extractor when using gas, so what is permitted is ruled by the laws around the use of gas, they do seem rather strict, so I would post this on a gas forum to find what the rules are, they may need to comply with some BS EN number to be used with gas?

benwatkins · 17 Jan 2020

ericmark said:
We have a hob extractor unit above the hob, it is hardly ever used, except for the built in lights, and when I came to clean it, really did not need cleaning, but son has cleaned his many times, and it is regular used, difference is, he uses gas, we use electric induction hob. With an induction hob only the pan gets hot, in theory we could have insulated pans, and before we went to plastic £5 notes the demo was to place £5 between pan and hob, and it was not damaged.

So in real terms you only need an extractor when using gas, so what is permitted is ruled by the laws around the use of gas, they do seem rather strict, so I would post this on a gas forum to find what the rules are, they may need to comply with some BS EN number to be used with gas?

I have an induction hob. I also had an extractor fan before I refurbished the kitchen. I used the extractor fan all the time to remove the steam and cooking smells. Now I don't have an extractor and every time I cook, the house fills with steam and cooking smells. So I am in no doubt I need an extractor.

EFLImpudence · 17 Jan 2020

Eric, you must stop saying everything is required by law.

Hood fans are to remove food smells and moisture.
Is it not the case that if one uses the hood for extraction of the air to the outside one is supposed to remove the filter; it only being necessary when recirculating the air in the kitchen.

ericmark said:
We have a hob extractor unit above the hob, it is hardly ever used, except for the built in lights, and when I came to clean it, really did not need cleaning, but son has cleaned his many times, and it is regular used, difference is, he uses gas, we use electric induction hob.

No, the difference is he uses his.

With an induction hob only the pan gets hot, in theory we could have insulated pans, and before we went to plastic £5 notes the demo was to place £5 between pan and hob, and it was not damaged.

Are you saying induction hobs do not create food smells and moisture?

So in real terms you only need an extractor when using gas, so what is permitted is ruled by the laws around the use of gas, they do seem rather strict, so I would post this on a gas forum to find what the rules are, they may need to comply with some BS EN number to be used with gas?

Are you saying hood fans are compulsory by law with gas cookers?
That is, one might be prosecuted for not having one.

benwatkins · 17 Jan 2020

EFLImpudence said:
Is it not the case that if one uses the hood for extraction of the air to the outside one is supposed to remove the filter; it only being necessary when recirculating the air in the kitchen.

I'd not heard that. I thought the filter stopped the fan, ducting/vent etc. from getting gummed up with grease. If that doesn't happen or they are designed to withstand it then great. Makes life much easier.

mfarrow · 17 Jan 2020

EFLImpudence said:
Eric, you must stop saying everything is required by law.

Hood fans are to remove food smells and moisture.
Is it not the case that if one uses the hood for extraction of the air to the outside one is supposed to remove the filter; it only being necessary when recirculating the air in the kitchen.

No, the difference is he uses his.

Are you saying induction hobs do not create food smells and moisture?

Are you saying hood fans are compulsory by law with gas cookers?
That is, one might be prosecuted for not having one.

He was referring to gas/building regulations I assume?

https://www.gassaferegister.co.uk/m...-wales-iom-and-guernsey-vent-requirements.pdf

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In line extractor for hob

benwatkins

ericmark

benwatkins

EFLImpudence

benwatkins

mfarrow

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