No matter which type of range you have, there should be no more than 36 inches between the cooktop's surface and the start of the range hood.
If you have an electric cooktop, range hoods should be 20–24 inches above the heat source. For gas cooktops, your range hood should be 24–30 inches above the stove. Range hoods have multiple functions such as complementing your cooktop or range and helping clear the air of smoke while you cook.
For all domestic cooking appliance installations in new builds and kitchen replacements / renovations, the clearance from the top of the cooking vessel supports (trivets) to the underside of the rangehood require to have a minimum clearance of 650mm.
Right distance electric cooktop
We also recommend a maximum distance 80cm in this case. If your range hood is mounted higher than that, it probably won't extract all the cooking fumes.
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.
Ventilation to the Outdoors (IRC M1503. 1): Residential range hoods should vent to the outside to effectively expel smoke, grease, and cooking odors, maintaining the home's air quality. This requirement is crucial for preventing the recirculation of contaminants within the home.
A 30-inch hood over a 36-inch cooktop is not recommended, as it may not effectively capture smoke and odors. For proper ventilation, the hood should be at least 36 inches wide.
Typically, canopy vent hoods come in either 30- or 36-inch widths. Canopy range hoods should be at least the same width as the cooking surface below. This can also be about six inches larger than your cooktop, with three additional inches on either side.
Always mount the cooker hood over the center of the hob. Maintain the required minimum distance between the hob and hood. For induction hobs, a minimum distance of 500mm form the hood is required. For gas hobs, a minimum distance of 650mm from the hood is required.
There's no strict 36-inch requirement for vent hood height. It's more about efficiency and safety. I'd say, find a sweet spot that works for you, keeps your kitchen smoke-free, and doesn't mess with your cooking vibe. Codes are cool, but practicality rules in the kitchen game.
A minimum clearance of 24 inches (610 mm) is permitted where one of the following is installed: The underside of the combustible material or metal cabinet above the cooking top is protected with not less than 1/4-inch (6.4 mm) insulating millboard covered with sheet metal not less than 0.0122 inch (0.3 mm) thick.
A good rule of thumb is to choose a range hood that's 6 inches wider than your cooktop on both sides. That means if your cooktop is 24 inches wide, your range hood should be 36 inches wide to cover the 24 inches of cooktop space and 6 extra inches on each side.
The switch or any other switches or power-outlets must not be located on any wall, cupboard or other surfaces within 150mm of the edge of an open cooking surface (gas or electric).
1.1, outlines clearances to range hood and exhaust fans. For a new installation, the clearance between the cooking support surface for the cooking vessels and the rangehood shall not be less than 650mm.
In general, most installations require a distance from 20" to 24" between the bottom of the hood and the cooking surface. Over a gas range, this distance should be between 24" and 30", unless otherwise specified.
A minimum clearance 'work zone' of 40” (102 cm) should be provided in front of a kitchen stove, with a larger 48”-60” (122-152 cm) clearance provided between other kitchen appliances.
If you have an electric cooktop, range hoods should typically be 20–24 inches above the heat source. For gas cooktops, your range hood should be around 24–30 inches above the stove. Range hoods are a great way to complement your cooktop or range and can help clear the air while you cook.
If your range top is 30 inches wide, go for a ventilation hood that's 36 inches wide. That way, you'll have an even overhang of 3 inches on each side. You always want your range hood to cover as much space over your range top as possible.
Generally, the minimum distance recommended is 750mm, but it can vary based on the gas hob's size and power. Electric Hobs: Electric hobs, which include induction and ceramic types, typically need a distance of at least 650mm between the hob and the hood.
At a minimum, the hood should extend to about the middle of the front burners. Under-cabinet range hoods are not as deep as wall or island models. A range hood should not extend beyond the outer edge of the cooktop.
Your rangehood should be the same width as your cooktop, to ensure all smoke and fumes are extracted. To make things easy, rangehoods are generally available in the same sizes as common cooktops, e.g. a 60cm wide rangehood is ideal for a 60cm wide cooktop.
Here is a Breakdown of the Duct Size You Need Based On Your Range Hood's CFM. If you have a range hood with a CFM of 0-400, you will need a minimum duct size of 4”. If your hood is between 401 and 600 CFM, you need a minimum duct size of 6”. If your hood is between 601 and 900 CFM, you need a minimum duct size of 7”.
The thumb rule is to select a hood 3 inches wider than the cooktop on both sides. The ideal hood size for a 30-inch cooktop would be a 36-inch range hood.
Wall-Mounted Width: The most common widths are 30” and 36”. The range hood should be equal to or slightly larger than the range top.
Upgrading to a 36-inch cooktop may be achievable in any kitchen with enough space, but be aware that some renovations to your cabinetry may be necessary beforehand. Walk through a step-by-step overview for installing a new cooktop below, or find a more detailed explanation of the process with this guide.