Baxi Luna HT Installers And Users Instructions page 17

A 90° bend reduces the total duct length by 0.5 metre.
A 45° bend reduces the total duct length by 0.25 metre.
Separated horizontal flue terminals installation options
IMPORTANT: Ensure a minimum downward slope of 1 cm toward the outside per each metre of
duct length
Make sure that the exhaust and intake ducts are securely fixed to the walls.
L max = 15 m
(L1 + L2) max = 80 m
17
The maximum length of the suction
duct must be 15 metres.