Flue - Baxi 35/80 IE Installation & Servicing Instructions Manual

3. When the system includes an indirect domestic hot water cylinder it is recommended that a
cylinder thermostat is used in conjunction with a 3 port 2 position valve or 2 port zone valve.
4. A switched live feed should be taken from the cylinder thermostat to the boiler. This will
operate the boiler when there is a demand for domestic hot water (see
of suggested system wiring schemes).
Page 13

7.8 Flue

1. The flue terminal position must be in accordance with the recommendations given in
the current edition of I.S. 813.
2. The terminal shall be located in such a position that the wind can freely blow across it at all
times, that the products of combustion will not be blown into nearby air-entry grills or roof
spaces or cause discomfort to passers-by.
3. A suitable guard shall protect terminals located less than 2 m above any level, to which
people have normal access.
Fig. 9
Terminal Position with Minimum Distance
A Directly below opening vent, window, air brick etc.
B Below gutters, soil pipes.
C Below eaves.
D Below balconies/car port roof.
E From a vertical drain/soil pipe.
F From an internal/external corner.
G Above ground, roof or balcony level.
Section 8.8
(Fig. 9)
for details
(mm)
300
25
25
25
25
25
300