36-Inch or 48-Inch Range Hoods? Compared by Specs
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Choosing between a 36-Inch vs 48-Inch range hood depends on your kitchen layout and ventilation needs. Both units are under-cabinet models designed for stainless steel finishes, but they serve different capacities. The Broan-NuTone insert is a ductless option focused on odor removal with charcoal filters. The COSMO unit offers powerful 500 CFM airflow for ducted installations. Width and motor speed are the primary differentiators here.
Key differences
| Aspect | Broan-NuTone 36-Inch Ductless Insert | COSMO 48-Inch Haven Under-Cabinet Hood |
|---|---|---|
| Width | 36 inches | 48 inches |
| Airflow | Not listed | 500 CFM |
| Installation Type | Non-ducted only | Ducted (convertible to ductless) |
| Fan Speeds | 2-speed | 3-speed |
| Lighting | Up to 75W incandescent | 2-Watt LED |
Which one should you choose?
Choose Broan-NuTone 36-Inch Ductless Insert if
- You need a hood for a 36-inch stove space.
- You cannot install ductwork and require a non-ducted solution.
- You prefer simple rocker switch controls over digital buttons.
Choose COSMO 48-Inch Haven Under-Cabinet Hood if
- You cook with strong odors and need 500 CFM of airflow.
- You have a 48-inch range and need wider coverage.
- You want energy-efficient LED lighting and push-button controls.
Verdict: The Broan-NuTone insert is the practical choice for smaller kitchens without ducting. The COSMO hood is better for serious cooking in larger spaces with proper venting. Select the width that matches your appliance and the installation type your kitchen allows.
36-Inch vs 48-Inch Hood Specs
Width and Coverage
The primary difference is the width. Product A is a 36-inch Broan-NuTone insert. Product B is a 48-inch COSMO unit. The COSMO measures 47.8 inches wide. This extra width covers more of your cooktop surface. A wider hood captures smoke and grease from larger burners or multiple pots. The 36-inch Broan-NuTone is narrower. It fits standard under-cabinet spaces better. You should choose the 48-inch model if you have a wide range. The 36-inch model is better for smaller kitchens. Width determines how much of your cooking area is ventilated.
Airflow Capacity
Product B, the COSMO 48-Inch Haven, lists an airflow of 500 CFM. It uses twin centrifugal motors for ventilation. This high capacity quickly removes smoke and odors. Product A, the Broan-NuTone, is a ductless insert. The data does not list a CFM rating for this unit. It relies on a non-ducted filtration system with charcoal filters. This method traps odors but does not exhaust air outside. If you need strong ventilation for heavy cooking, the COSMO’s 500 CFM is superior. The Broan-NuTone is suitable for light cooking or apartments without ductwork.
Fan Speeds
Product B offers three fan speeds. You can adjust the airflow from low to high. The lowest speed runs at 40 dB with rigid ducting. Product A has a 2-speed fan. You can switch between two settings using separate rocker switches. Both units allow you to control ventilation intensity. The COSMO provides more granular control with three speeds. The Broan-NuTone offers simplicity with two speeds. If you need precise airflow adjustments, the three-speed COSMO is better. For basic ventilation needs, the two-speed Broan-NuTone is sufficient.
Lighting Type
The lighting differs significantly between the two models. Product A uses an incandescent light. It accepts up to a 75W bulb. The bulb is not included. A protective lamp lens distributes the light evenly. Product B features 2-Watt LED bulbs. These are long-lasting and provide high lumen output. LEDs use less energy than incandescent bulbs. The COSMO lighting is more energy-efficient. The Broan-NuTone lighting is brighter in wattage but less efficient. If you want low maintenance and energy savings, choose the LED option.
Installation Type
Product A is a non-ducted insert. It installs under the cabinet without external venting. It requires a charcoal filter for operation. Product B is a ducted hood. It vents air outside through an 8-inch round duct. It comes with flexible ducting for installation. You can convert it to ductless with an optional carbon filter kit. The BROAN-NuTONE is ideal if you cannot install external ductwork. The COSMO is better if you have access to exterior venting. Ducted ventilation is generally more effective for removing heat and moisture.
Which range hood fits your needs
Renters without ductwork
If your kitchen lacks external venting, the Broan-NuTone insert is your only option. It installs as non-ducted only using a replaceable charcoal filter. This system effectively removes smoke and odors without requiring complex construction. The 36-inch width fits standard under-cabinet spaces, and the 120V rating ensures easy electrical connection for most homes.
Heavy cooks with large stoves
The COSMO hood offers 500 CFM airflow with twin centrifugal motors. This powerful ventilation quickly clears heavy cooking fumes from a larger kitchen area. Its 47.8-inch width covers wider cooktops effectively. You can adjust the fan across three speeds using push-button controls, allowing you to match the exhaust intensity to your specific cooking activity.
Users wanting quiet operation
Noise levels matter when cooking daily. The COSMO hood operates as low as 40 dB on its lowest fan speed when used with rigid ducting. This quiet performance contrasts with the Broan-NuTone, which uses a simpler 2-speed fan without specified decibel ratings. The COSMO also features energy-saving 2-Watt LED lights for bright visibility without excess heat.
Those seeking easy maintenance
Cleaning filters is simpler with the COSMO unit. It includes ARC-FLOW stainless steel permanent filters that are dishwasher-safe and durable. In contrast, the Broan-NuTone requires you to purchase and replace charcoal filters periodically to maintain optimum grease capture. The COSMO also provides a 2-year limited warranty for added peace of mind regarding product longevity.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Broan-NuTone 36-Inch Ductless Insert | kitchens without ductwork options | Check price of Broan-NuTone 36-Inch Ductless Insert on Amazon |
| 2 | COSMO 48-Inch Haven Under-Cabinet Hood | Large kitchens needing 48-inch ducted ventilation | Check price of COSMO 48-Inch Haven Under-Cabinet Hood on Amazon |
The products compared
Broan-NuTone 36-Inch Ductless Insert
Best for: kitchens without ductwork options
- Width
- 36-Inch (what this guide is about)
- Installation Type
- Under cabinet insert
- Venting
- Non-ducted only
- Number of Speeds
- 2 speed
- Control Type
- Rocker switches
- Filter Type
- Charcoal filter
View on Amazon: Broan-NuTone 36-Inch Ductless Insert Affiliate link
This Broan-NuTone 36-inch insert is a non-ducted range hood designed for under-cabinet installation. It features a two-speed fan and incandescent lighting that accepts up to 75W bulbs. The stainless steel build includes replaceable charcoal filters to remove smoke and odors. It measures 36 inches wide and weighs only 1 pound. You should choose this if you need a ductless solution for a 36-inch stove setup.
Pros
- 36-inch width fits standard 36-inch cooktops
- Two-speed fan with separate rocker switches
- Stainless steel construction for easy care
- Includes replaceable charcoal filters for ductless use
- Lighting accepts up to 75W incandescent bulb
Cons
- Non-ducted design only; cannot be vented outside
- No variable speed control; only two fan settings
- Bulb not included with the unit
Good fit if
- You cannot install ductwork to the exterior
- You need a 36-inch range hood insert
- You prefer simple rocker switch controls
Skip if
- You require ducted ventilation for stronger exhaust
- You want variable speed fan control
- You need a 48-inch width for larger ranges
Verdict: Broan-NuTone 36-Inch Non-Ducted Insert is a lightweight, stainless steel solution for kitchens without ducting options. It suits you if you need a basic 36-inch insert with simple two-speed fan control and replaceable charcoal filtration.
COSMO 48-Inch Haven Under-Cabinet Hood
Best for: Large kitchens needing 48-inch ducted ventilation
- Width
- 48-Inch (what this guide is about)
- Maximum Airflow
- 500 CFM
- Installation Type
- Under cabinet
- Number of Speeds
- 3 speed
- Control Type
- Push button
- Filter Type
- Stainless steel baffle
View on Amazon: COSMO 48-Inch Haven Under-Cabinet Hood Affiliate link
This 48-inch range hood offers 500 CFM airflow with twin centrifugal motors. It features push-button controls and a 3-speed fan. The unit weighs 62.2 pounds and measures 47.8 inches wide. It includes 2-Watt LED lights and dishwasher-safe permanent filters. You can convert it to ductless with a separate kit. It suits large kitchens needing strong ventilation.
Pros
- 500 CFM airflow with twin centrifugal motors
- Dishwasher-safe ARC-FLOW stainless steel permanent filters
- 2-Watt LED lights for bright visibility
- Converts to ductless with optional carbon filter kit
Cons
- Push-button controls lack touch interface
- Requires separate purchase for ductless conversion kit
- No variable speed control beyond 3 settings
Good fit if
- You need 48-inch width for large cooktops
- You prefer durable stainless steel permanent filters
- You want ducted ventilation with 500 CFM
Skip if
- You want touch controls instead of push buttons
- You need ductless operation without buying extra parts
- You prefer a 36-inch or 30-inch size
Verdict: COSMO Haven 48-Inch Push Button Range Hood provides strong 500 CFM airflow for large kitchens. It fits buyers who need wide coverage and durable filters. It is not ideal for those wanting touch controls or immediate ductless use.
Specifications side by side
| Spec | Broan-NuTone 36-Inch Ductless Insert | COSMO 48-Inch Haven Under-Cabinet Hood |
|---|---|---|
| Maximum Airflow | not stated | 500 CFM |
| Installation Type | Under cabinet insert | Under cabinet |
| Venting | Non-ducted only | not stated |
| Width | 36 in | 47.8 inches |
| Number of Speeds | 2 speed | 3 speed |
| Control Type | Rocker switches | Push button |
| Filter Type | Charcoal filter | Stainless steel baffle |
| Lighting | Up to 75W incandescent bulb | 2W LED bulbs |
| Noise Level | not stated | As low as 40 dB |
| Color | Stainless Steel | Push Button |
| Size | 36 Inch | 48 inch Push Button |
| Dimensions | 17.5 × 6 × 36 inches | 22 × 47.8 × 10 inches |
| Weight | 1 pounds | 62.2 pounds |
| Model | 413604 | COS-QB48 |
Frequently asked questions
Can I use a 48-inch hood on a smaller cooktop?
Yes, you can install a wider hood over a smaller cooktop. The COSMO 48-Inch model measures 47.8 inches wide, providing extra coverage. This wider span helps capture smoke and odors from a broader area. It is suitable if you want extensive ventilation coverage beyond your burner size.
How much space does a 36-inch insert need?
The Broan-NuTone 36-Inch insert requires specific dimensions for installation. It is 36 inches long and 17.5 inches deep. The unit itself is lightweight at one pound. You need to ensure your cabinet space can accommodate these exact measurements for a proper fit.
Is the Broan-NuTone hood heavy to install?
No, the Broan-NuTone 36-Inch insert is very light. It weighs only one pound. This lightweight design makes it easier to handle during installation compared to heavier metal units. You can manage it without needing extra support or assistance for lifting.
What controls does the COSMO hood feature?
The COSMO 48-Inch Haven uses push button controls. You operate the fan and lights using physical buttons on the unit. It does not use touch controls. This mechanical interface allows for straightforward operation without relying on electronic sensors or touch-sensitive panels.
Does the 36-inch model have external ducting?
No, this specific Broan-NuTone model is designed for ductless use. It relies on replaceable charcoal filters to remove odors. You do not need to connect it to external ventilation ductwork. This makes it a practical choice for kitchens where external venting is not available.
How wide is the COSMO 48-Inch hood exactly?
The COSMO 48-Inch hood measures 47.8 inches in width. This dimension is slightly under the standard 48-inch label. It is designed to fit under cabinets while providing maximum coverage for your cooking area. Check your cabinet width to ensure this measurement fits your space.
What is the weight difference between these two hoods?
The Broan-NuTone unit weighs one pound, while the COSMO unit weighs 62.2 pounds. This significant difference affects installation requirements. The heavier COSMO hood needs sturdy cabinet support. The lightweight Broan-NuTone insert is easier to mount and handle.

