Thermal convection calculation method for kitchen ventilation systems in accordance with:-
UK Building Regulations Approved Document "F" Volume 2 and
Building and Engineering Services Association (BESA) DW/172
Appliance
Power
Coefficent
Width
Depth
Area
Flowrate A
Flowrate B
Theoretical extract volume required
Canopy
Inboard
Canopy Height
Based on area DW/172
Wall - Low Level (eyebrow)
Wall - Tapered
Wall - Box Type
Wall, Island Mounted
Island
Pizza Hood 2,2m
Pizza Hood 2,5m
Pizza Hood 2,7m
Pizza Hood 2,9m
Pizza Hood 3,1m
Pizza Hood 3,3m
Pizza Hood 3,5m
Open Both Ends
Open One End
Closed Both Ends
Ductwork Size Calculator
Airflow Volume (m³/h):
Airflow Volume (m³/s):
Air Speed (m/s):
Rectangular Duct Dimensions
Rectangular Side A (mm):
Rectangular Side B (mm):
Square Duct Dimensions
Square Side A (mm):
Calculated Duct Sizes:
