Rex Nordic heaters – An eco-friendly choice with renewable diesel
Rex Nordic heaters are the perfect choice for those looking to reduce their carbon footprint without sacrificing performance. These heaters operate efficiently on both traditional diesel and fossil-free renewable diesel, ensuring 100% fuel efficiency and low fuel consumption. Summary Rex Nordic heaters run on both traditional diesel and fossil-free renewable diesel, reducing carbon emissions. Innovative technology maximizes fuel energy use, ensuring low fuel consumption. In many cases, renewable diesel is a more eco-friendly heating option than electricity, especially in regions where power is generated from fossil fuels. Using renewable diesel for heating is a tangible step toward a fossil-free future, and Rex Nordic heaters support this transition without compromising performance. Efficient and clean heating without emissions Rex Nordic heaters utilize advanced fuel-efficient technology, ensuring all fuel energy is fully utilized. Their three-phase system directs infrared heat waves straight into the surrounding area. This method not only saves energy but also enables precise heat targeting with reflector structures. As a result, heating with Rex Nordic is both economical and environmentally friendly. Renewable diesel – The environmentally friendly heating solution Diesel often gets unfairly associated with fossil fuels, yet modern diesel technology has evolved significantly, allowing for clean and efficient use of fossil-free fuels like renewable diesel. This sustainable fuel is a viable alternative for both heating and transportation, offering a significant reduction in environmental impact. Rex Nordic heaters are at the forefront of this progress. With cutting-edge product development, Rex Nordic heaters function seamlessly with renewable diesel, which is not always the case with conventional diesel heaters. When using renewable diesel, Rex Nordic heaters significantly reduce emissions compared to electric heating systems—especially in countries where electricity production still relies heavily on fossil fuels. This makes renewable diesel an eco-friendly alternative with a lower environmental impact. Electricity vs. renewable diesel in heating Comparing renewable diesel to electric heating, renewable diesel is often the more sustainable choice. For example, in the EU, the average CO₂ emissions from electricity production range between 200–300 g CO₂/kWh, meaning that electric heating can have a higher carbon footprint than a fuel-burning heater using renewable diesel. Rex Nordic heaters not only reduce dependence on fossil fuels but also offer significant energy savings. This makes them an ideal heating solution for large spaces requiring constant and efficient heating, such as garages, industrial halls, warehouses, and construction sites. A fossil-free future Reducing fossil fuel consumption is a key part of building a sustainable future. Using renewable diesel for heating is a tangible step towards a fossil-free world, and Rex Nordic heaters make this transition easy—without compromising performance or usability. The benefits of renewable diesel extend beyond emissions. Its production supports local circular economies, as raw materials can be sourced locally, and manufacturing can be conducted regionally. This not only supports ecological goals but also benefits local economies. Rex Nordic heaters exemplify how modern technology can drive the shift toward a more sustainable future. Rex Nordic heaters are next-generation solutions for eco-friendly and cost-effective heating. They are the ideal choice for businesses that prioritize sustainability, efficiency, and responsibility. Discover our selection of diesel heaters today! Renewable diesel vs. biodiesel – Which is better? Renewable diesel (HVO) is technically superior to biodiesel (FAME, RME) due to:✔ Compatibility: Works directly with existing diesel engines✔ Better cold-weather performance✔ Greater emission reductions✔ More consistent fuel quality, regardless of raw materials Biodiesel is cheaper to produce but comes with technical issues and lower environmental benefits. EU regulations limit biodiesel blending in diesel fuels to 7%, whereas renewable diesel has no blend restrictions and can be used in pure form. We recommend using only renewable diesel in Rex Nordic heaters. Biodiesel (FAME, RME) must not be used.
Rex Nordic diesel heater – reliable warmth, real fuel savings
Efficient heating isn’t just about power – it’s about getting warmth where it matters and keeping it there. Rex Nordic diesel infrared heaters have proven across Finland’s harsh winters that consistent comfort doesn’t have to mean high operating costs. The following real-life examples from Finland show how Rex Nordic keeps large warehouses and workshops warm throughout long winters – while using surprisingly little fuel. Proven results with infrared heating: only 0.66 gallons per day Many users are surprised to see how little fuel Rex Nordic diesel heaters actually consume. They’re built to heat large spaces evenly and efficiently, without wasting energy. Grels Ström, a retired technical specialist from Rex Nordic, uses a Rex Nordic heater in his 5,400 sq ft (500 m²) warehouse. The building has ceiling insulation, drywall walls, and a concrete floor – an ideal structure for retaining heat. Previously, the space was heated with direct electric heaters, but switching to diesel cut both energy use and costs dramatically. Ström explains: “At first, fuel use can be a bit higher. It usually takes about a week or so for consumption to stabilize. Infrared heat is absorbed directly into the structures, and once they’re fully warm, it takes surprisingly little fuel to keep the temperature steady.” He maintains an indoor temperature of about 59 °F (15 °C) even when it’s freezing outside. Once the building is fully warm, daily fuel consumption averages just 0.66 gallons (2.5 liters) of diesel. The Rex Nordic heater has run reliably for years without any issues or need for service. A slightly higher initial fuel use is completely normal. Building materials often contain moisture that must dry out first. Once dry, the heating system runs at peak efficiency – and the savings are immediate. This is where Rex Nordic infrared technology truly stands out: the heat is stored in the building’s structure and released steadily. After that, only short heating cycles are needed to maintain comfort, and the savings show directly on the fuel bill. Smart thermostat keeps fuel use to a minimum Every Rex Nordic infrared heater comes with a built-in thermostat designed to keep fuel consumption as low as possible. The heater starts and stops automatically to maintain the target temperature. Diesel is metered precisely – only as much as needed, never more – keeping use to an absolute minimum. In everyday operation, the heater works independently. Once the structure is warm, it maintains a steady temperature with short operating intervals. There’s no need for constant adjustments – the thermostat takes care of everything automatically. Unlike traditional forced-air heaters, Rex Nordic units don’t blow hot air to the ceiling or lose it when doors open. Infrared heat radiates directly into walls, floors, tools, and machinery, which absorb and store the warmth. When doors are opened, the stored heat in the structures quickly restores the indoor temperature. Long-term savings proven in Finland Another example comes from Markku Ojanen, who heats a 1,695 sq ft (480 m³, 10 ft high) insulated building. It was previously heated with radiators and fan heaters that consumed about 660 gallons (2,500 liters) of oil each year. After switching to a Rex Nordic AH-310 diesel heater, the difference was immediate. During the first winter, fuel use dropped to around 264 gallons (1,000 liters) per year – less than half of what it was before. He maintains a steady indoor temperature of 48–50 °F (9–10 °C) and raises it to 55 °F (13 °C) while working. Over ten years, the total savings have reached roughly $10,000–$12,000, and the same heater is still running flawlessly. “Maintenance has been done on schedule, but it’s never needed a single repair,” Ojanen says. “It just keeps going.” Sustainable heat that lasts Rex Nordic infrared heating works on a simple but powerful principle: instead of heating air, it radiates warmth directly into surrounding surfaces. Floors, walls, and objects absorb the heat just like sunlight warms your skin on a cool day. Once these surfaces are warm, they release the heat evenly back into the air, keeping the temperature consistent. This stored warmth acts as a natural heat buffer, which keeps fuel consumption low after the first few weeks. The heater only runs as much as necessary to maintain the balance. That’s what makes infrared heating so effective compared to traditional forced-air systems. Infrared heat doesn’t escape when doors open or air circulates – the warmth stays stored in the structure, ready to rebound. The result is lasting comfort and real savings, even in demanding winter conditions. Site 1 – Warehouse (Finland) Type: Warehouse 1,695 sq ft (approx. 480 m³) Structure: Concrete floor, insulated ceiling, drywall walls Previous heating: Direct electric New solution: Airrex diesel infrared heater Maintained temperature: 59 °F / 15 °C in freezing weather Average daily fuel consumption: 0.66 gal / 2.5 L diesel Maintenance: Reliable performance, almost no servicing required Savings: Fuel use is significantly lower than the previous system Site 2 – Insulated hall (Finland) Type: Insulated hall (3,875 sq ft / 360 m², 10 ft / 3 m height) Previous system: Radiators + fan heaters Previous fuel use: ~660 gal / 2,500 L oil per year New system: Airrex AH-300 diesel heater Current fuel use: ~264 gal / 1,000 L per year Years in operation: 10 years Estimated savings: $10,000–$12,000 over 10 years Reliability: Same unit still running perfectly, no repairs needed
Warmth that stays – Airrex heater keeps the workshop comfortable all winter
Heating a 244 m² (2,625 sq ft) car repair shop in winter is no small task, especially one with 20-foot ceilings, concrete walls, a partially insulated metal roof, and a large overhead door that opens throughout the day. In harsh winter conditions, heat escapes fast. With a Rex Nordic diesel space heater, the shop maintains a steady temperature of +16–17 °C (61–63 °F) all winter long. Janne Mukkala, owner of JM-Konehuolto Oy from Finland, has relied on his Rex Nordic heater for six years – and says he wouldn’t switch to anything else. “The heater has worked flawlessly. When the door opens and the temperature drops and the temperature drops, it starts automatically and brings the heat back quickly. Reliability is what I value most.” A fuel-powered heater that supports the main heating system in extreme cold Before installing Rex Nordic, the shop struggled with constant temperature swings. The district heating system alone couldn’t maintain a comfortable workspace, especially when the overhead doors were opened during freezing temperatures. Rex Nordic provided the missing support. “Now we can open the door as often as we need without losing the indoor heat,” says Mukkala. “Rex Nordic reacts instantly to temperature changes and backs up the main heating system really well.” For any garage or workshop where efficient, odorless heat is needed without a complicated installation, Rex Nordic is an ideal solution. At JM-Konehuolto, the heater runs daily throughout the winter, sometimes even overnight. Rex Nordic – easy to use, built to last The Rex Nordic infrared heater has operated for six years straight without a single maintenance issue. “I’ve never had to do anything to it – it just works.” Thanks to its clean-burning design and advanced burner technology, Rex Nordic is nearly maintenance-free. It runs quietly, without smoke, odors, or fumes inside the shop. For best performance, we still recommend replacing the annual service kit – an easy way to maintain maximum efficiency year after year. A satisfied user – a warm shop with minimal effort Reliable, simple and economical – that’s how many Rex Nordic users describe the heaters. “It has been the most dependable heating solution we’ve ever had,” says Mukkala. Even in building with imperfect insulation and constant door traffic, Rex Nordic keeps the workshop warm and comfortable all winter long. Who is the Rex Nordic diesel heater for? The Rex Nordic diesel heater is built for demanding environments where consistent warmth really matters. It’s a great fit for garages, repair shops, warehouses, and workspaces – especially places where large doors open frequently and warm air escapes quickly. It’s fully mobile design allows you to position it exactly where heat is needed, making it ideal for busy facilities with multiple work zones or changing layouts. It also performs reliably in locations with limited electrical capacity, delivering clean, steady heat even when traditional heaters fall short. Facts: JM-Konehuolto Oy, Finland Business type: Car repair workshop Facility size: 244 m² (2,625 sq ft) | Height 6 m (20 ft) Structure: Concrete walls and floor, partially insulated metal roof Heating setup: District heating + Airrex AH-800i diesel heater Usage: Daily during winter, sometimes overnight In operation: 6 years | No maintenance required Maintained temperature: +16–17 °C (61–63 °F)