Classification Due To Discharging Flue Gases - REMEHA Quinta 30 Technical Information

Horizontal components in the flue gas discharge system should slope towards the boi-
ler. Horizontal components in the air supply system should slope towards the supply
opening.
Care should be taken when siting flue exit positions as a vapour plume will be visible
when the boiler is operational (flue gas temperature will be less than 75°C resulting in
the water vapour condensing out on contact with the air).

7.3.2 Classification due to discharging flue gases

Classification according to CE:
Type B23:
Conventional room ventilated boiler without draft diverter. Air supply from boiler room:
flue gas discharge on roof.
Type B33:
Conventional room ventilated boiler without draft diverter, flue gas discharge is air
enclosed.
Type C13:
Room sealed boiler, connected to combined wall outlet.
Type C33:
Room sealed boiler, connected to a combined roof outlet.
Type C43:
Room sealed boiler in cascade configuration, connected via two ducts to a common
duct system serving more than one boiler.
Type C53:
Room sealed boiler, connected to separate ducts for the air supply and flue gas
discharge, terminated in zones of different pressure.
Type C63:
Room sealed boiler, supplied without the terminal or the air supply and flue gas
discharge ducts.
Type C83:
Room sealed boiler, connected via two ducts to a common duct system serving more
than one boiler. (flue gas discharge always under pressure)
Conventional open flue installation:
Combustion air for the boiler must be provided to the room/compartment in accordan-
ce with the British Standards.
For maximum flue length, see table in Par. 7.3.4.
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