It is used to heat air and supply grain-driers or other drying cells, and also to heat shopfloors. There used local solid fuel types.
TECHNICAL FEATURE
| Characteristic | VT-600 | VT-800 | AT-1,0 |
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| Capability, kilowatt | 600 | 800 | 1000 |
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| Heated air, C | up to 100 | up to 120 | up to 120 |
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| Fuel consumption, kg/h | 270 | 326 | 350 |
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| Efficiency factor, % | 85 | 85 | 85 |
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| Air speed, m/s | 16 | 16 | 16 |
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| Overall dimension, mm, length (with ventilator) x width x height (with pipe) | 3770(5290)х1870х2600(7380) | 4033(5621)х2120х2652(7666) | 4212(5800)х2100х2640(7500) |
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| Weight, kg (without ventilator) | 3500 | 4000 | 4200 |
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