Ventilation For Combustion - Arada i400-S3 Installation Manual

2.1 Flues Or Chimneys, Continued :
•
The flue system should be fixed and supported by the building, to provide provision
to remove the appliance without the removal of the flue.
•
Any existing flue or chimney must be confirmed suitable for the intended use, defined
by the current Building Regulations.
•
If the chimney system has been previously used as an open fire, it must be swept a
second time within calendar month of installation, to clear any soot falls that have
happened from use of the new appliance.
•
The flue system or chimney must be inspected and swept to confirm the system is
free from obstructions and is sound structurally.
•
Chimney heights and or separations may need to be increased in particular cases
where wind exposure, tall trees, surrounding tall buildings or high ground have
adverse effects on flue draw.
•
The flue exit from the building must comply with the current Building Regulations.
•
Do not connect to a flue or chimney system containing large voids or spaces over
230mm square.
•
Twin walled flue systems, can be used, however we recommend seeking knowledge
and advice from the manufacturer of the system to be used.
•
All cassette stoves MUST NOT be connected to a shared flue system.

2.2 Ventilation For Combustion :

All cassette stoves require a constant ventilation air to burn safely and to maintain efficient
combustion and effective flue performance.
Air starvation will result in poor flue draw and combustion, together with smoke leakage
entering the room, which is potentially dangerous.
For all installations it is recommended that a permanent vent with a total free area of at
least 550mm for every kW above 5kW should be connected directly to the outside air.
In properties built after 2008, then the vent should be increased by a further 330mm for
each of the first 5kW. Alternatively this air can be supplied through an external wall of an
adjacent room, which itself has to be connected to the room the appliance is installed by a
permanent vent of the same size.
NOTE : If the appliance is fitted with a draught stabiliser (or if one is fitted to the flue or
chimney system, in the same room as the appliance) then the permanent air entry
opening should be increased by 300mm for each kW of rated output up to 5kW and an
additional 850mm for each kW output over 5kW.
If there is more than one appliance in the property then each appliance must be supplied
with adequate combustion air so that all appliances can be lit simultaneously.
Cassette Stove Installation Guide — BK605 Rev 05
Cassette Stove Installation Guide
7