Find your CFM
in 1 minute.
Answer four questions about your cooktop and ventilation setup. We'll recommend the airflow (CFM), hood width and ventilation options for your kitchen.
CFM Sizing Tool
Four questions to your recommendation.
Hoodsly hoods and ventilation products are only rated for indoor residential kitchens and are not up to code for commercial cooking equipment.
Still not sure? Reach out to our friendly Hoodsly experts with your cooktop model number.
We suggest the non duct kit.
Hoodsly does not carry a recirculating ventilation unit suitable for your cooktop's BTU output.
Important: Gas Appliances + Recirculating Ventilation
Recirculating ventilation is generally not recommended for gas cooking and may not meet local building codes. Inadequate ventilation can also expose your wood hood to excess heat, grease, and moisture, potentially causing damage.
We recommend confirming your setup with a Hoodsly expert for help.
Important: If your ventilation system exceeds 400 CFM, local building codes may require a makeup air system. Consult your contractor or local building department.
Important: Not all ventilation units are compatible with all hood styles. For confirmation please contact us.
Please Note: Results are based on the information you provide and are intended as general guidance. Hoodsly recommendations are based on standard national builder code. It is the customer’s responsibility to ensure that what they purchase passes code in their area. Hoodsly is not responsible for inaccurate results. For help confirming your recommendation, please contact a friendly Hoodsly expert.
Airflow, decoded
CFM matched to your cooktop.
Right-sized hood
We suggest a width to fit.
Fit-checked
Verified before it ships.
Real humans
Talk it through with us.
Four answers. One personalized recommendation.
Your appliance and ventilation details help us determine the recommended CFM and ventilation options for your setup.
The sizing tables.
The same logic the tool uses. Your result above is tailored to the answers you gave.
Not sure of your BTU output? Check your appliance manual or search your cooktop model number. Our Hoodsly experts can also help you find this information.
Where does the air go?
Ducted (vented outside)
Grease is captured by your ventilation filters, while air, smoke, and cooking odors are directed outside through ductwork.
- ✓Best capture & air quality
- ✓Removes heat and moisture from the home
- ✓Ideal for gas and high-BTU cooking
Ductless (recirculating)
Recirculating ventilation is recommended for electric cooktops only. Using it with gas can pose health risks and may damage your wood range hood. We recommend confirming your setup with a Hoodsly expert.
- ✓No exterior duct required
- ✓Easier retrofit installs
- ✓Filters need periodic replacement
Find your insert.
Twelve brands, every model group we've verified against our hoods, with the exact modification each one needs.
Bertazzoni
1 groupWith an extended depth to 19.3125″ or deeper and a solid bottom added, this unit will work with the boxed and bell style hoods only.
Best
1 groupThe Best model inserts are an excellent fit for all of our hood styles. Once you match the width of your insert to the corresponding hood width (30″ insert works with the 30″ wide hood), the depth of the hood needs to be modified to 19.3125″, which is available under Size Modification on the product pages. You do not need to add a solid bottom. There may be some light sanding needed on the depth as the dimension is the exact same as our inside opening.
Please note: a 22.5″ depth increase is needed for the 48″ CP37 series.Elica
2 groupsThis unit fits all hoods with trim and requires a custom width and custom depth to properly fit within our hoods.
This unit fits all hoods with trim but requires a custom width.
Faber
3 groupsThis unit fits all hoods with trim and requires a custom width and custom depth to properly fit within our hoods.
This unit fits all hoods with trim and requires a custom width and custom depth to properly fit within our hoods.
This unit fits all hoods with trim and requires a custom width and custom depth to properly fit within our hoods.
GE
2 groupsThe GE model inserts are an excellent fit for our hood styles. Once you match the width of your insert to the corresponding hood width (30″ insert works with the 30″ wide hood), the depth of the hood needs to be modified to 19.3125″, which is available under Size Modification on the product pages. You do not need to add a solid bottom.
These units fit all hoods with trim and require a custom width and custom depth to properly fit within our hoods.
IKTCH
2 groupsThis unit fits all hoods with trim but requires a solid bottom.
This unit fits all hoods with trim and requires a custom width and custom depth to properly fit within our hoods.
Thermador
1 groupDue to the shape of the Thermador ventilation, these units are not a good fit for all of our hood models. In order for them to work with select models, you will need to select an extended depth to 22.5″, which will leave a 0.5″ gap between the liner and the inside opening of the hood. This small gap will need to be filled in width-wise. This can be covered utilizing a filler (not provided by us) or by adding a solid bottom on our product page.
Vent-A-Hood
2 groupsVent-A-Hood is a product we are proud to highlight on our website. In order for these models to work, the depth is modified to 19.3125″ inside opening. When selected on our product page, this change is automatically applied. You do not need a solid bottom, and the unit will work within all trimmed hoods, with rib notching. Rib-notching may be required to make the ventilation unit fit. If purchased elsewhere, you will need to increase the depth to 19.3125″.
Vent-A-Hood is a product we are proud to highlight on our website. In order for these models to work, the depth is modified to 22.5″ inside opening. When selected on our product page, this change is automatically applied. You do not need a solid bottom, and the unit will work within all trimmed hoods, with rib notching. Rib-notching may be required to make the ventilation unit fit. If purchased elsewhere, you will need to increase the depth to 22.5″.
Please note: many of these styles have dual exhaust ports and will need additional ducting adapters during installation. Hoodsly can provide the adapter piece for these units upon request.Wolf
2 groupsIn order for these models to work with our hoods, it requires a custom hood depth of 19.375″. Please contact Hoodsly customer service at (877) 847-0405 for a custom invoice. We will customize the depth to match the insert.
In order for these models to work with our hoods, it requires a custom hood depth of 22.625″. Please contact Hoodsly customer service at (877) 847-0405 for a custom invoice. We will customize the depth to match the insert.
XO
7 groupsFor select styles, this unit will work with a modified depth of 19.3125″. ALL styles require a solid bottom. Both of these modifications are available on our product pages under the Size Modification step.
This unit will work with All Hoods With Trim with a solid bottom added on the product page, however, unit will need to be mounted towards the back of the hood.
This unit will work with all range hoods with trim but requires a solid bottom. This unit will need to be mounted towards the back of the hood.
This unit requires a solid bottom.
Requires a custom depth and a solid bottom.
This unit requires a solid bottom and you will have to notch the ribs.
This unit works with all hoods but requires a depth increase to 19.3125″. For the 48″ option, you may need to increase your depth to 22.5″ based on the unit you purchased.
Zephyr
5 groupsThe Zephyr model inserts are an excellent fit for all of our hood styles. Once you match the width of your insert to the corresponding hood width (30″ insert works with the 30″ wide hood), the depth of the hood needs to be modified to 19.3125″, which is available under the Size Modification step on the product pages. You do not need to add a solid bottom. Please let us know what the model number of the unit is, so that we can accommodate the modifications.
The Zephyr model inserts are an excellent fit for all of our hoods with trim. Once you match the width of your insert to the corresponding hood width (36″ insert works with the 36″ wide hood), the depth of the hood needs to be modified to 22.5″, which is available under the Size Modification step on the product pages. You do not need to add a solid bottom. Please let us know what the model number of the unit is, so that we can accommodate the modifications.
The Zephyr model inserts are an excellent fit for all of our hoods with trim. Once you match the width of your insert to the corresponding hood width (36″ insert works with the 36″ wide hood), the depth of the hood needs to be modified to 22.5″, which is available under the Size Modification step on the product pages. You do not need to add a solid bottom. Please let us know what the model number of the unit is, so that we can accommodate the modifications.
The Monsoon Mini will work with the 30″ and 36″ wide hood of all styles, but requires a custom depth. Because the unit is 1/16 thicker than our standard inside opening, you can sand the 1/16″ out of the inside of the hood, which is a lot of sanding. If you prefer to increase the depth, you can select any depth size and add a solid bottom to close the gap in depth for the hood. Please contact Hoodsly customer service at (877) 847-0405 for help with your custom depth and let us know what the model number of the unit is, so that we can accommodate the modifications.
This model is a perfect fit for all our trimmed hoods.
ZLINE
2 groupsIn order for the ZLINE models to fit, we supply a ZLINE Modification Kit that is easily installed at the time of installation. This mod-kit is only supplied when the ZLINE is purchased with a wood hood from us. These models are an excellent fit for each of our hood styles without a modification to the depth or solid bottom.
The 15″ depth of ZLINE is not an ideal fit for our hoods, as it requires either a solid bottom or a 3″ filler to be installed.
No match for that model
We only list units we've verified against manufacturer spec sheets. Send us your spec sheet and we'll check it.
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