Recirculating Rangehood advice

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Senecio

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#280031 23-Nov-2020 12:42

I've searched the site and can't find much information.

Does anyone have experience with recirculating rangehoods. There's nothing in our current kitchen and fitting a vented hood would be near on impossible due to the design of the house and where the cooktop is located. Just wondering if they are worth it or if they just create a lot of noise but don't really do much to remove cooking odours etc..

sir1963

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#2609022 23-Nov-2020 12:50

The point of a range hood is to remove steam. A recirculating one will not do that.

Recirulating ones would not be permitted in a rental property for this reason. You should have forced extraction in high humidity areas (kitchen, Bathroom, potentially Laundry).

Jase2985

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#2609071 23-Nov-2020 13:01

sir1963:

The point of a range hood is to remove steam. A recirculating one will not do that.

Recirulating ones would not be permitted in a rental property for this reason. You should have forced extraction in high humidity areas (kitchen, Bathroom, potentially Laundry).

how do passive house's deal with it? this is primarily what they are used for. removing odors from the air.

sittingduckz

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#2609074 23-Nov-2020 13:04

Jase2985:

sir1963:

The point of a range hood is to remove steam. A recirculating one will not do that.

Recirulating ones would not be permitted in a rental property for this reason. You should have forced extraction in high humidity areas (kitchen, Bathroom, potentially Laundry).

how do passive house's deal with it? this is primarily what they are used for. removing odors from the air.

Most manufacturers should have carbon filters available for this reason. Not 100% effective, but better than just circulating it all :)

I'm not a complete idiot, I still have some parts missing.

Senecio

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#2609095 23-Nov-2020 13:46

I’m not too worried about steam. We have plenty of ventilation and cook with the windows open, just trying to get an idea of how effective recirculating hoods are at removing odours. Our bedroom is upstairs off a mezzanine level so it’s not nice going to bed with dinner smells, not to mention the smell get into the clothes in the wardrobe.

PolicyGuy

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#2609125 23-Nov-2020 14:31

In me experience, they are worse than useless, they take the food-smell-laden air and blow it around so it spreads around the whole area with which the kitchen is connected - and in a modern open plan house, that tends to mean everywhere.

When I bought my current house, it had a recirculating range hood.
After a couple of months, I bought a proper one and paid for a roofer to make a properly-flashed hole in the roof so I could exhaust the range hood outside the house.
A very good investment

Jase2985

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#2609132 23-Nov-2020 14:38

PolicyGuy:

In me experience, they are worse than useless, they take the food-smell-laden air and blow it around so it spreads around the whole area with which the kitchen is connected - and in a modern open plan house, that tends to mean everywhere.

they have filters in them that should remove the odors and should be changed/cleaned regularly, so they are not as useless as you portray.

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duckDecoy

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#2609134 23-Nov-2020 14:41

sir1963:

The point of a range hood is to remove steam. A recirculating one will not do that.

Doesn't the metal mesh also catch some of the oil/grease? This would reduce the amount of greasy walls etc.

webwat

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#2612433 28-Nov-2020 18:40

duckDecoy:

sir1963:

The point of a range hood is to remove steam. A recirculating one will not do that.

Doesn't the metal mesh also catch some of the oil/grease? This would reduce the amount of greasy walls etc.

Used to have one of those recirculating rangehoods, was actually pretty useless. the mesh probably condensed some of the steam but it still just circulated the cooking smells around. Good luck finding a way to get the vent duct outside!

Time to find a new industry!

Jase2985

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#2612453 28-Nov-2020 19:44

how many that had recirculating ones and thought they were not good, changed the activated charcoal filter in it?

hsvhel

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#2612458 28-Nov-2020 19:56

Jase2985:

how many that had recirculating ones and thought they were not good, changed the activated charcoal filter in it?

Annually per recommendation from manufacturer, they were largely inefficient for reducing smell and grease.

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