Product Details

REXNordic AH-810i (REX Nordic) – USA Version

• AH-810i (WiFi-enabled)
• Heating capacity:64,800 BTU/h (19 kW)
• Heats up to:8,600 sq ft (with 8–10 ft ceilings) or up to 70,000 cu ft
• Fuel type:No. 1 or No. 2 diesel, biodiesel, renewable HVO100, or red diesel (ASTM D975)
• Fuel consumption:0.31 – 0.42 US gal/h (average 0.37 US gal/h)
• Tank capacity:11.9 US gallons (up to 32–38 hour runtime on a full tank)
• Noise level:48 dB @ 3 ft – still quieter than a normal conversation
• Heat technology:Patented ceramic-coated triple-combustion infrared burner (no blower, no dust circulation, no open flame)
• Controls:Touch-panel + handheld remote + WiFi smartphone app (iOS & Android)
• Safety features:Tip-over shut-off, overheat protection, flame-out sensor, CO₂ monitor with automatic shut-off, child lock
• Power supply:120 V / 60 Hz, draws less than 90 W (runs on any standard household outlet)
• Exhaust:Clean-burn system – 39 ft exhaust pipe and rain cap included (must be vented outdoors)
• Mobility:Four lockable heavy-duty casters and built-in handles
• Dimensions (L × W × H):37.4 × 13.8 × 45.3 inches
• Weight (empty):119 lb
• Weight (full tank):Approx. 208 lb
• Warranty:2 years standard (extendable to 3 years with online registration)
• Included in the box:Heater, remote control, 39 ft exhaust pipe with rain cap, fuel hose, manual
• Design origin:Finland
• Certifications:CE, UKCA, ETL-listed (North America)Ideal for warehouses, large workshops, hangars, event tents, construction sites, agricultural buildings, and anywhere you need powerful, quiet, dust-free, odor-free diesel heat with remote monitoring capability. The AH-800i is the flagship model in the Airrex lineup.

This means odorless, smoke-free operation, perfect for warehouses, workshops, construction sites, and agricultural buildings where air quality matters most.

With a heating capacity of 19 kW (65,000 BTU/h) while consuming just 0.37 gallons of fuel per hour, the AH-800i provides exceptional value for large spaces up to 73,000 ft³ where electric power is limited or expensive.

The ceramic-coated heat exchangers operate quietly at only 48 dB while distributing infrared heat evenly in all directions.The Airrex AH-800i runs on standard diesel or renewable HVO fuel, raising indoor temperatures up to +100 °F even in extreme cold. Backed by a 2-year warranty that extends to 3 years when you register online.

Materials

The REXNordic AH-810i is built from heavy-gauge powder-coated steel with a durable, scratch-resistant finish in anthracite grey. The patented ceramic-coated infrared burner pipe is designed to withstand extreme thermal cycles and ensures clean, odour-free combustion for years of reliable use.

Care & Maintenance

• Wipe the exterior with a damp cloth and mild detergent when cool. Do not use abrasive cleaners or solvents. 
• Clean the protective grille and air inlet/outlet annually with compressed air or a soft brush to maintain optimal airflow. 
• Drain and clean the fuel filter every season (or every 500 operating hours). Replacement filters are inexpensive and widely available. 
• Store indoors or under cover when not in use for extended periods; always drain the fuel tank to prevent condensation. 
• Use only high-quality diesel, biodiesel, or HVO100 fuel. Poor-quality fuel is the most common cause of reduced performance.

With basic seasonal maintenance, the AH-810i is designed to deliver 10+ years of trouble-free operation even in demanding professional environments.