Operated by Eggenberg & D'Orly
WELTEM WHO-250F Diesel Infrared Heater 29 kW with Fan
€ 3.799,00
The WELTEM WHO-250F diesel infrared heater (29 kW) delivers powerful, quiet and fuel-efficient radiant heat for large spaces up to 4,680 m³. It warms objects and surfaces directly for an even, comfortable warmth, running on just 2.35 l/h of (bio)diesel.
- Effective heat for spaces up to 4,680 m³
- Low consumption from 2.35 l/h – odourless & smoke-free
- Whisper-quiet at 32 dB, with thermostat & remote control
- 3-year manufacturer’s warranty
Not sure this is the right heater?
WELTEM WHO-250F diesel infrared heater 29 kW – maximum output with a built-in fan for large industrial spaces
The WELTEM WHO-250F diesel infrared heater provides efficient, quiet warmth for spaces up to 4,680 m³, effectively heating around 2,100 m³ on just 2.35 l/h of fuel. Unlike traditional hot-air blowers, infrared technology heats the floors, walls, machinery and people in the room directly with a built-in fan for faster heat distribution, so the warmth is felt almost instantly and spreads evenly without noisy, dusty draughts.
With a noise level of only 32 dB, an adjustable thermostat (0–40 °C) and a remote control, the WHO-250F combines comfort with control. Its low, honest fuel consumption and clean, odourless combustion make it an economical and environmentally conscious choice for indoor use, backed by a 3-year manufacturer’s warranty.
Why choose the WELTEM WHO-250F?
WELTEM heaters are built with extra metal, larger burner tubes and premium reflector panels, giving a robust construction, more heat output and a longer service life than comparable models. The WHO-250F also features a built-in fan for faster, wider heat distribution, adding flexibility for the way you heat your space. Because the stated fuel consumption is exactly what you get, your running costs stay predictable season after season.
Where to use the WHO-250F
The WHO-250F is ideal for large industrial halls, warehouses, event tents and covered outdoor areas. Its large wheels, mobile design and flue-free operation make it quick to deploy wherever reliable, comfortable heat is needed.
Key features
- Infrared heat that warms floors, walls, objects and people directly – not just the air – for even, draught-free warmth
- Odourless and smoke-free combustion thanks to a dedicated burner system with ceramic filters
- Whisper-quiet operation at only 32 dB
- Runs on (bio)diesel with low, honest fuel consumption – exactly as advertised
- Reaches maximum temperature within 120 seconds
- Mobile and durable: large wheels and a robust, high-grade metal construction
- Adjustable thermostat (0–40 °C) and remote control included
- 3-year manufacturer’s warranty
What’s in the box
- WELTEM WHO-250F diesel infrared heater 29 kW (up to 4,680 m³)
- Protective cover included
- + FREE battery-powered oil pump DP-03-1 (with auto-stop)
Technical specifications
| Model | WHO-250F |
| Heated area | 280 m² |
| Effective heating volume | 2,100 m³ |
| Communicated volume | 4,680 m³ |
| Heating capacity | 25,000 kcal/h |
| Calorific output | 29 kW |
| Fuel consumption (continuous) | 2.35 l/h |
| Tank capacity | 80 l |
| Dimensions (W x D x H) | 1,340 x 350 x 1,275 mm |
| Power supply | 230 V / 50 Hz |
| Remote control | Yes |
| Temperature setting | 0–40 °C |
| Noise level | 32 dB |
| Weight | 84,8 kg |
|---|---|
| Dimensions | 35 × 134 × 127,5 cm |
| Power | 29 kW |
| Max heating volume | 4, 680 m3 |
| Fuel consumption | 2.35 l/h |
| Tank capacity | 80 l |
| Noise level | 32 dB |
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