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Kitchen extractor fan6/21/2023 ![]() This in turn can cause damp patches on ceilings etc which can cause direct water damage or secondary issues such as mould problems. Over time, if moisture in a kitchen is not controlled, the steam from cooking (or boiling a kettle) will settle on surfaces, reaching dew point and forming condensation on various surfaces. Several of these things can be associated with ‘damp’ problems in kitchens and can in fact be linked to condensation problems (and then mould problems). In our article about the signs of a water leak, we talked about how there are a few signs of a leak to watch out for. So back to the benefits of kitchen extractor fans… Condensation and Mould in Kitchens If you think about it, where would the moisture go? It might sound silly to say but extractor fans and cooker hoods don’t really come with a water tank or dehumidifier in them as standard. ![]() Quite often the filters, which may include carbon filters, are relatively effective at removing smells but they are not as effective at removing steam (which causes condensation). Extractor fans that work only on a ‘recirculate’ are far less effective at removing moisture from the air, which is the main purpose of an extractor fan. ![]() However, it’s widely agreed that extracting to the outside of a property is far more effective all-round. In some instances they are ‘pop-up’ from the actual kitchen unit itself.Īs you can see on the AO.com website they come in all shapes, sizes and costs.Īs we said earlier, not all extractor fans vent to the outside of a property so… Do Kitchen Extractor Fans Need to Vent Outside? They are usually mounted directly above them to capture and extract steam and odours which rise as cooking takes place. They can take many forms and, in many ways, can look like a bathroom extractor fan or even PIV Unit vent (although PIV units are ‘positive’ ventilation).Ī cooker hood is a unit often containing an extractor (or recirculation) fan in the proximity of a hob on a cooker. suction – hence ‘extractor’ fan) vent in a kitchen. Kitchen extractor fans is a general phase to describe a negative pressure (i.e. This might sound like an obvious question but there are some interesting things to consider when looking at how kitchen extractor fans differ to cooker hoods, especially as not all cooker hoods extract to the outside (more on that later). This is usually worse in winter when (a) windows are more likely to be closed and (b) other surfaces are colder making hitting dew point more likely.Ĭooker Hoods vs Extractor Fans – What’s the Difference? Helping to prevent all of the above in other rooms in the houseĪs you will likely know, when you cook, especially with pots and pans containing boiling or simmering water, a lot of steam (and smells) can circulate potentially causing a lot of condensation on walls, ceilings and window condensation.Helping to prevent mould on walls and ceilings in kitchens.Helping to prevent damp walls and ceilings in kitchens.Helping to prevent condensation in kitchens.To control cooking smells and odours from cooking in a kitchenĪs well as that there are secondary benefits:.To control steam and humidity levels from cooking in a kitchen.In a nutshell a kitchen extractor fan serves two primary purposes: We look into the whole subject in this article along with an interesting experiment later on in the article where we monitor relative humidity in a kitchen over a full month, with fascinating results. In fact, they simply recirculate the air in the room.Kitchen Extractor Fans are something that we often take for granted, especially in modern homes, but what exactly do they do and what are the benefits of having one (or more!) in your kitchen? So instead, these spaces rely on simple fans, which capture grease and some particulates in a filter but otherwise do very little to remove pollutants. For people with health issues or allergies, ducted versions by far the best option.īut in many millions of homes (like crowded apartment buildings), kitchen ductwork is structurally difficult or impossible. ( Electric stoves don’t produce carbon monoxide and only small amounts of nitrogen dioxide, though they do produce fine particulate matter.)ĭucted hoods are the best solution to this problem, as they suck in contaminated air and then vent it to the building's exterior. That's because cooking over high heat produces carbon monoxide, nitrogen dioxide, formaldehyde, fine particulate matter and other potentially dangerous byproducts. Now, imagine that your kitchen stovetop might create more pollution than some places that have famously filthy air – for example, in one study more than half of California homes featuring gas stoves had pollutant levels exceeding limits for outdoor pollution. You've undoubtedly seen ominous smog that hangs over heavily polluted metropolitan areas.
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