Air supply to solid fuel burning appliances

Table 3.1 Air supply to solid fuel burning appliances Type of appliance: Open appliance such as an open fire with no throat, e.g. a fire under a canopy as in Diagram 3.6 | Type and amount of ventilation: Permanently open air vent(s) with a total equivalent area of not less than 50% of the cross-sectional area of the flue Type of appliance: Open appliance, such as an open fire with a throat as in Diagram 3.5 and 3.12 | Type and amount of ventilation: Permanently open air vent(s) with a total equivalent area of not less than 50% of the throat opening area Type of appliance: Other appliance, such as a stove, cooker or boiler, with a flue draught stabiliser | Type and amount of ventilation: Permanently open vents as below: If design air permeability >5.0 m3/(h.m2) then - 300 mm2/kW for first 5 kW of appliance rated output; and 850 mm2/kW for balance of appliance rated output. If design air permeability ≤5.0 m³/(h.m²) then - 850 mm2/kW of appliance rated output Type of appliance: Other appliance, such as a stove, cooker or boiler, with no flue draught stabiliser | Type and amount of ventilation: Permanently open vents as below: If design air permeability >5.0 m3/(h.m2) then - 550 mm2/kW of appliance rated output above 5 kW. If design air permeability ≤5.0 m³/(h.m²) then - 550 mm2 per kW of appliance rated output