Last edited 02 Jul 2015

Balanced flue appliance

Approved document J, Combustion appliances and fuel storage systems defines a balanced flue appliance as:

‘…a type of room-sealed appliance which draws its combustion air from a point outside the building adjacent to the point at which the combustion products are discharged, the inlet and outlet being so disposed that wind effects are substantially balanced. Balanced flues may run vertically, but in the most common configuration they discharge horizontally through the external wall against which the appliance is situated.’