Due to big temperature differences, it is highly recommended to install air curtains to reduce the energy losses when the door is open. The higher the temperature differences between inside/outside, then higher are the energy losses when a door is unprotected.
| Material: | Powder Coating |
| Motor: | Work in 5000 hour |
| Length: | 1200mm |
| Installation heights: | 3.5m |
| Power: | Low: 218W Medium: 285W high: 419 W |
| Air Speed: | Low 21m/s high 22 m/s |
| Flow air: | 1830 m3/h |
| Noise: | 65 dB |
| Unit Size: | 1200mm x 224mm x 214mm |
| Net weight: | 18.7 kg |
| Voltage: | 220V/50Hz/1phase |
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Nafuji FJ3512DY, Length (1,2m), recommended height (3,5m). It is known that on open doorways with two adjacent areas in different conditions the air is interchanged between them because the laws of physics tend to equalise the temperature and pressure difference between both sides.
The air curtains reduce energy costs by keeping heated or cooled air in the internal building atmosphere.
Efficient air curtains will save up to 80% energy looses across a doorway compared with a door without air curtain.
During the winter an air curtain creates a barrier that keeps out the cold air while in the summer the air stream keeps out the hot air from outside.
Bearing in mind the energy saved, the average payback time for an air curtain is between 2 and 5 years depending on usage and climate conditions.