Caltech Calaer 2 kW, Installation Manual

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10. Combustion air and exhaust system
28
Before securing the air intake tube to the heater with the provided hose
clamp, make sure that the fuel connection is already in place or leave room
for it when tightening the clamp.
Secure the line in place with the support brackets.
10.2 Exhaust system
The heater comes with 2 meter (6.4 feet) long flexible exhaust line what is
also the maximum allowed length. The total radius of the bends should not
exceed 270 degrees for open pipe and 200 degrees when a muffler is used.
The exhaust outlet should vent straight to open atmosphere.
The exhaust outlet point should be positioned so that it is away from the
combustion air intake and any other fresh air suction point.
The exhaust gases can reach temperatures up to 300°C (570°F), therefore
extreme caution needs to be taken to ensure that the exhaust lines are well
insulated and at safe distance from any heat sensitive materials and possible
human contact. Make sure that there is no luggage or other equipment in
the vicinity of the heater that could come loose and get into contact with
the hot lines.
Avoid passing the exhaust lines through populated rooms.
Install the exhaust pipe in a slanting slope if possible. If necessary, make a
drainage hole of approx.
ɸ
5mm at the lowest part of the exhaust line.
Warning!
Do not make a drainage hole into the exhaust line where it is passing
through rooms occupied by persons.
Warning!

Asphyxiation risk: The combustion air is required to be drawn from
the outside or from well ventilated spaces that are not occupied by
persons.

Do not place the combustion air intake close to any exhaust outputs.