Kalfire G Series Installation Instructions Manual page 19

Connecting without convection hood.
Place the grids or other openings in the surround for the
ventilation of a fireplace without convection hood. The grids
or opening protect the surround against high temperatures.
Ventilation grids must have a dimension of at least 350 cm² per
side. Grids can be replaced by opening with an intake of at least
350 cm² and an outflow of at least 350 cm².
TIP: Deviating connections can be submitted to Kalfire for
written approval.
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Fig. 16: Surround without convection hood
(1) Air intake grid (two openings of at least 175 cm²)
(2) Grid for exit of convection air (two openings of at least 175 cm²)
Connecting with convection hood
The convection hood is mounted on the appliance in the factory
and so cannot be installed afterwards. The convection hood
ensures a delivery of controlled heat in the room where the gas
fire has been installed. This optimises the heat output of the
appliance.
Mount two aluminium ducts of (Ø 150 mm) to the convection
hood and connect these to the ventilation openings or grids
mounted on the convection hood. The total cross-section of the
outlets must be a minimum of 350 cm².
CAREFUL! Sealing the fireplace is at your own risk, damage
to the varnish caused by sealing falls outside of the factory
warranty.
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Fig. 17: Surround with convection hood
(1) Air intake grid (two openings of at least 175 cm²)
(2) Grid for exit of convection air (two openings of at least 175 cm²)
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