DOLL electric heater devices of the type-series DEH are universal compact heating devices for the professional application in rooms of all kinds, also in wet areas, greenhouses and construction sites.
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The devices are easily transportable by the serially equipped carrying handles. With the utilisation of wall brackets from the accessory programme, these devices are also optimally applicable as stationary units.
The robust casings are made of zinc-coated steel plates and are additionally preventing corrosion by dual coating. The devices are equipped with a stainless steel heater core for long durability and an axial high performance ventilator for high air-throughput at comparatively low acoustic emissions.
Doll process engineering electrical-heater devices type DEH-V are manufactured order related and specially customised for each individual customer requirement. The devices are constructed as supply-air devices for many different requirements, the spectrum ranges from the simple room heating to tank heating at tank revisions.
For hotel and gastronomy businesses we are manufacturing specially designed compact devices type series H= high temperature for pest control.
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Technical specifications DEH:
| Type | voltage / frequency | switchable heating power |
| DEH 3 | 230 V / 50 Hz | 0 - 1,5 - 3 kW |
| DEH 5 | 400 V / 50 Hz | 0 - 2,5 - 5 kW |
| DEH 9 | 400 V / 50 Hz | 0 - 4,5 - 9 kW |
| DEH 15 | 400 V / 50 Hz | 0 - 7,5 - 15 kW |
| DEH 20 | 400 V / 50 Hz | 0 - 10 - 20 kW |
| DEH 30 | 400 V / 50 Hz | 0 - 15 - 30 kW |
Serial equipped features:
- stainless steel heating core.
- high performance air-throughput.
- resetting protection against overheating.
- power switch with mode 0(off) - half heating power - full heating power.
- protection type IP 44, protection against overheating type DIN EN 2904.
- no servicing needed and free from radio interferences.