After the acquisition of the hood you should proceed and install it around 20 to 24 inches just above the cooktop.
Minimum height for wall mount range hood.
The most common range hood over a professional gas cooking product is the 18 high professional canopy wall hood.
Hoods mounted too high will be hard to reach and will lose performance and efficiency.
Unprotected range hood height.
This type of range hood requires a distance of 30 to 36 above the cooking surface.
High capacity range hoods are typically installed between 24 and 30 inches above the cooktop while standard models are installed on average between 18 and 24 inches above the surface of the cooktop.
The american institute of architects recommends a minimum of 30 inches 76 2 cm between the stove and an unprotected upper surface.
If available also refer to stove top manufacturer s height clearance requirements and recommended hood mounting height above range.
Unprotected and flammable surfaces such as wood or plaster cabinets may be exposed if the hood is not as wide as the cooking surface.
Hoods mounted too low could result in heat damage and fire hazard.