Installing an under-cabinet range hood is an effective way to improve your kitchen’s ventilation and keep the air clean while cooking. There are two main installation types for under-cabinet range hoods: ducted installation and ductless installation.
1. Ducted Installation (Vented to the Outside)
In a ducted setup, the range hood is connected to a venting duct that carries the cooking smoke, grease, and odors directly outside through an external wall or roof.
Steps:
- Measure and Mark the Position – Locate the center point above your cooktop and mark where the range hood will be mounted.
- Drill the Duct Hole – Create a hole in the cabinet or wall that will connect to the exterior vent.
- Install the Ductwork – Attach metal or aluminum ducts from the range hood’s outlet to the outside wall vent cap. Seal all joints with aluminum tape.
- Mount the Range Hood – Secure the hood under the cabinet using the provided screws and brackets.
- Connect Power and Test – Plug in the unit or hardwire it (depending on your model) and test to ensure the fan and lights are working properly.
This type provides the best ventilation performance since all cooking fumes are expelled outdoors.
2. Ductless Installation (Recirculating System)
In a ductless setup, the range hood doesn’t vent air outside. Instead, it uses activated carbon filters to capture odors and grease, then recirculates the clean air back into the kitchen.
Steps:
- Install the Carbon Filters – Attach the carbon filters to the fan motor or filter holders as directed by the manufacturer.
- Mount the Range Hood – As with the ducted method, mark and secure the hood under the cabinet.
- Connect Power – Plug in or hardwire the range hood.
- Test the Circulation – Turn on the hood to ensure air is flowing properly through the filters and back into the room.
Ductless installation is simpler and more flexible, ideal for kitchens where exterior venting isn’t possible.
Key Difference Between the Two Methods
The main difference lies in the air outlet connection.
Ducted hoods have an exhaust port connected to an external vent.
Ductless hoods have a recirculating outlet that releases filtered air back into the room.
Both installation methods are similar in structure, but the ducted version requires additional ductwork and an opening to the outside, while the ductless version needs carbon filters for air purification.