Airrex AH-500i Infared Diesel Heater

The AIRREX AH-500i is a next-generation mobile infrared diesel heater built for professional users who need dependable, efficient warmth across large working areas. With a dual-power output of 11 kW to 15 kW, it is particularly well suited to workshops, machinery stores, agricultural buildings, landscaping depots, tree surgery yards and commercial groundcare facilities up to 1,500 m³.

Rather than blowing hot air around the room like a conventional fan heater, the AH-500i produces comfortable infrared heat that warms people, tools, machinery and surrounding surfaces directly. This makes it an excellent choice for busy workspaces where reducing draughts, airborne dust and unnecessary noise matters.

The adjustable dual-power system allows you to select the right level of heat for changing conditions. Choose the lower 11 kW setting for more moderate days, or use the full 15 kW output when a large workshop, depot or covered work area needs rapid, even warmth. Its advanced Blue Flame Burner delivers clean and economical performance, helping professional operators maintain a more comfortable environment through colder months.

The AH-500i is a practical way to heat a workshop or preparation area where equipment is serviced, cleaned and readied for the next job. Its upright design and robust wheels make it straightforward to reposition wherever heat is needed, whether that is beside a workbench, in a machinery bay or within a larger covered storage area.

With quiet operation of just 47–50 dB, the heater is well suited to occupied workplaces where conversation, customer service and focused maintenance work need to continue without the disruption of a loud fan heater.

The 45-litre fuel tank supports extended operation, while compatibility with HVO renewable diesel, biodiesel and standard diesel gives businesses greater flexibility in how they fuel their heating. Fuel consumption ranges from 1.05 to 1.42 litres per hour, depending on the selected output.

Set and maintain a comfortable working temperature from 0°C to 40°C using the smart thermostat and soft-touch LED control panel. The AH-500i can also be managed through the Rex Nordic App, giving you an easy way to monitor and control heating around the working day.

• Dual Power Performance: Easily switch or automatically adjust between 11kW and 15kW outputs to match heating demand.

• High-Volume Capacity: Rapidly and evenly heats large open-plan spaces up to 1,500 m³.

• No Exhaust Pipe Needed: Safe for indoor use without separate flue piping when operated in areas with adequate natural ventilation.

• Whisper-Quiet Operation: Runs at an unobtrusive 47-50 dB, perfect for busy workshop environments.

• Fully Mobile Design: Features a compact upright footprint and robust wheels for effortless repositioning.

• 5-Year Manufacturer Warranty: Includes a comprehensive 5-year warranty backed by Rex Nordic (requires simple online product registration).

• Brand / Model: AIRREX AH-500i (New 2026 Model)

• Heater Type: Mobile Infrared Diesel Heater
• Heat Output: 11 kW - 15 kW (Dual-Power System)
• Heating Capacity: Up to 1,500 m³
• Burner Technology: Advanced Blue Flame Burner
• Fuel Compatibility: HVO Renewable Diesel, Biodiesel, Standard Diesel
• Fuel Tank Capacity: 45 Litres
• Fuel Consumption: 1.05 - 1.42 L/h
• Noise Level: 47 - 50 dB
• Temperature Control Range: 0°C to 40°C via Smart Thermostat
• Power Supply & Consumption: 230V / 50Hz (60W power draw)
• Controls: Soft-touch LED display panel & Rex Nordic App
• Dimensions & Weight: 950 x 305 x 1010 mm (W x D x H) | 47 kg