A
balanced flue appliance is a sealed unit drawing
air for combustion directly from the outside
of a building and discharging the waste gases
of combustion through the same
external terminal.
To achievethis,
a twin wall, concentricflue
system
is connected to the appliance and uses the outer tube to
bring in the air whilst an inner tube expels the waste
gases. The main advantages of balanced flue appliances
are that they can offer greater flexibility in positioning
within the home and provide improved heating efficiency
compared to conventional flue models.