What type of cooker hood is best for you? There are two types of cooker hood: extraction and recirculating. Extractor hoods or fans are far and away the most effective type because they suck all steam and fats straight off the hob and eject it outside your home.
We generally recommend that you purchase a cooker hood that will filter the air in your kitchen at least 10 times per hour. A good way to work out if the rate is right for your kitchen is to work out the volume of your kitchen (length x width x height) for e.g. 4m x 3m x 2.5m = 30m3.
"Hoods need to be designed around the size and strength of the range," Wellnitz says. "A properly sized hood must cover the full width of the range and at least 50 percent of the front burners." A vent hood's strength is quantified by the amount of air it moves, represented in CFMs (cubic feet per minute).
To power your range hood, you need at least 100 CFM for every 10,000 BTUs of your stovetop. For example, a 100,000 BTU stove needs at least a 1000 CFM range hood. For electric stoves, multiply the stove width by 10. So, for a 42” electric stove you want a range hood with at least 420 CFM.
According to Lawrence Berkeley National Laboratory (LBNL) the capture efficiency of standard hoods is typically in the range of 30-40% on front burners and can be as high as 90% on back burners.
Carbon filters aren't necessary if your cooker hood uses extraction to remove odours and dirt outside. However, if your cooker hood uses air recirculation, carbon filters will help to remove cooking smells and keep your kitchen fresher and cleaner.
NeutraTEST generally recommends that you choose a hood that is 50% wider than your stove, providing there are a maximum of 80-90 cm between stove and hood. This is especially important for induction hobs, where steam etc. spreads out further. The greater the distance from worktop to hood the wider the hood needs to be.
Angled cooker hoods feature perimeter extraction, which ensures more effective cleaning of the air in your kitchen. This extraction method forces the air around the edges of the panel to increase the air pressure and speed. The result is much stronger extraction to eliminate even the most stubborn odours from the air.
Your cooker hood should ideally be either equal to or bigger than the width of the hob. If your hob measures up to 750mm wide, a cooker hood width of 900mm is advised.
Unvented range hoods do filter some grease and cooking odors from the air, but the general consensus is that they're nowhere near as effective. Nor do they remove heat and humidity, so they won't help keep your kitchen cool while you cook. Above: An industrial-style vent (made of ducting) draws air up and out.
Measure the width of the area over the range or cooktop. Range hoods often come in 24", 30" or 36" widths. The hood should be at least as wide as the cooking surface, but preferably should be 6" wider.
A range hood fan should move a minimum of 100 CFM of air for every 12 inches of stove width. This means that if you have a stove that is 30 inches wide then you need a range hood with a fan that rotates at least 250 CFM of air.
No. Most cooker hoods can either be installed to be ducted outside or to recirculate filtered air back into the kitchen. This means that the charcoal filters, used for recirculated installation only, are an optional accessory.
Grease filters are used on all cooker hoods regardless of whether they are vented to the outside or in recirculating mode. They are designed to help prevent grease from entering the cooker hood or getting blown around your kitchen.
As your cooker hood vents or recirculates the air in your kitchen, the grease filter captures all of the grease in the air. These filters can be found in both types of cooker hoods, as this level of filtration is necessary no matter what the cooker hood's function is.
While most hobs will have a standard depth of 50cm and a height of 5cm, the width can vary between 60-90cm. So, you'll need to choose a hob with a width that's appropriate for where you'll be placing it.
Chimney cooker hoods vary in size so you can get the perfect fit for your kitchen. For the best results, always make sure that the chimney hood you buy is at least the same width as your hob.
"Yes an electrician would be able to do the whole job for you. Cooker Hood prices vary but should not take longer than 3/4 of a day. For a neat job lifting of floorboards above the hood would be better. Electricians day rates are all different depending on area.
For example, for a 30” range, a 36” hood is ideal. Then, subtract 2” and you get 34”. So a 34” hood insert or larger is a great fit for a 30” range. For outdoor applications, go with an insert two sizes larger than your range.
The standard height for a range hood is between 28 and 36 inches from the cooktop for a gas range and electric range. 28 inches is the minimum height. If the hood is any closer, it may become damaged. Any further than 36 inches and your hood won't move air away from your cooktop efficiently.
Cooker hoods or a venting hob is not any legal requirement. But, your kitchen should always be ventilated by any window or venting duct. To remove the grease particles in a limited space, a ducting kitchen fitter is essential.