Firebird Enviromax Condensing Range
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6.5 - FLUES REGULATIONS
Ventilation and Combustion Air
Conventional Flue Boilers
An adequate supply of
combustion and ventilation air
is essential for efficient and safe boiler
operation and the openings for this should be positioned to cause least possible draught,
with no
possibility of being accidentally blocked.
Please note: The British Standard Code of Practice for Oil Firing BS5410: Part 1, requires a permanent air
inlet opening of
550mm
2
per kW (above 5 kW)
of boiler rated output. (Note: 1kW = 3412 Btu/h).
Also, when the boiler is installed in a compartment or confined space,
ventilation
openings are
required to ventilate and to avoid overheating in the boiler area.
Combustion & Ventilation air supply for conventional
open flue boilers
The figures shown are free areas of grilles in mm
2
per kw of appliance rating (output).
FULL TEXT of both BS 5410 Part 1: 1997 and appropriate Building
Regulations for each country should be obtained and fully applied
N.B. Please Carefully Note:
A.
For boiler installations in domestic garages in Scotland, Part F of Building Regulations permits
only
Room Sealed appliances to be used (Ref. OFTEC Bk. Three May 1999 page 1 (18).
B.
Technical annex T1/127 to OFTEC Book Three, May 1999 page 2 (19) Para. 1, 2 states “In Scotland and
the Republic of Ireland
only
Room Sealed Balanced Flue Appliances can be used in that location”
(i.e. domestic garages).
Definitions
Combustion Air
:
Air required directly by boiler oil burner for combustion process.
Ventilation Air
:
Air required in room for ventilation, cooling, etc. and to promote a healthy living
environment.
ROS PRINTERS
TEL: 064-6631233
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