Caltech Calaer 2 kW, Installation Manual

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11. Heating air system
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11. Heating air system
The unit comes with 1 meter (3.2 foot) of air duct and one heating air vent.
The air ducting can be extended with Calaer approved ducting materials and
vents.
The heating air intake line must not exceed 2 meters. The hot air
distribution ducts maximum lengths and number of vents are listed in the
table below:
Adjustable vents are recommended to control the air flow. Be aware that
at least one ducting channel must be equipped with a non-closeable vent!
Heater type Maximum inlet ducting Maximum outlet ducting
2 kW heater 2 m (
ɸ
60 mm) + vent 6.5 m (
ɸ
60 mm) +
3 outlets with vent
4 kW heater 2 m (
ɸ
90 mm) + vent 10 m (
ɸ
90 mm) +
5 outlets with vent