Cooling the Hottest Corners of Metalwork with HP-19 Mobile Air Conditioner
In the heart of any metalworking facility, heat is part of the job. Whether it’s arc welding, plasma cutting, or grinding, these tasks generate intense, localised heat, far beyond what general ventilation systems can handle. And while full-hall cooling might seem like a solution, it often proves wasteful and ineffective when the real challenge lies in just a few critical hotspots. That’s why many metal industry professionals are turning to targeted, mobile cooling, and specifically to the Rex Nordic HP-19. When General Cooling Falls Short Walk into any busy fabrication shop in summer and you’ll feel it immediately: the sharp contrast between the air near the ceiling fans and the sweltering temperatures next to a welding torch. High temperatures not only affect worker comfort and focus but also put sensitive equipment at risk. And yet, retrofitting a full AC system is costly, slow, and often unnecessary for the rest of the hall. The HP-19 approaches the problem differently. It’s not designed to cool an entire building, just the places where people and machines need it most. With a compact footprint, wheels for easy movement, and a powerful internal compressor, it delivers cold air exactly where it’s aimed – no ductwork or installation required. Cooling with Precision One of the most important features of the HP-19 is its ability to focus airflow directly at a workstation. Operators can position the unit within a few metres of a welder, plasma cutter, or CNC machine and direct the cool air precisely with built-in nozzles or optional ducting. In practice, this can lower the ambient temperature around the operator by up to 15°C – enough to make a real difference in concentration, endurance, and safety. And unlike simple fans, this unit actually conditions the air, removing heat and filtering it in the process. Built for the Realities of Industry The HP-19 isn’t a plastic consumer product. It’s built for rough environments, with a steel casing, rugged wheels, and components designed for long operating hours. It connects to a standard 230 V socket and weighs around 85 kg, heavy enough to stay put, but light enough to move when needed. Inside, it’s a 4-in-1 machine: cooling, heating, dehumidifying, and purifying the air. This means it’s useful year-round, not just in peak summer. And thanks to its built-in filters, it also reduces smoke, metal dust, and other airborne particles, particularly important in welding bays where fumes are a constant concern. Efficiency That Pays Off At 5.6 kW of cooling capacity and only 2.3 kW of power consumption, the HP-19 is surprisingly energy-efficient. It uses a low-GWP refrigerant, making it a more environmentally responsible option than many traditional systems. Combined with its focused output, that means you’re not paying to cool empty space, just the work that’s actually happening. Adaptable to Any Workshop Exhaust air can be routed out of the space using a flexible hose or simply allowed to disperse if the building is well-ventilated. This makes the HP-19 incredibly flexible. There’s no installation delay, no major changes to infrastructure, and no need to overthink where it fits. You can plug it in and start cooling in minutes. It’s a straightforward answer to a complex industrial problem. Trusted by Industrial Operators Across Europe The HP-19 is part of the new-generation range based on the long-standing Airrex HSC series, a name already well known in construction and agricultural sectors. Its larger sibling, the HP-60, offers even more power for bigger areas, but for many mid-sized workshops and welding stations, the HP-19 hits the sweet spot between performance, portability, and cost. Want to cool down your hottest workstation? Contact Rex Nordic to learn more. See how targeted mobile cooling can change the way your team works – no installation, no hassle.
Maintaining the Right Temperature in Potato Storage with a Mobile Air Conditioner
Maintaining the Right Temperature in Potato Storage with a Mobile Air Conditioner Proper storage of potatoes requires precise temperature control, as fluctuations can directly impact their quality and shelf life. For small-scale farms, the challenge is often finding a versatile and cost-effective solution that doesn’t require major upfront investment. The HP-19 mobile air conditioner from Rex Nordic offers a practical and flexible answer. Norwegian potato farmer Per Try, from Søgne, tested the HP-19 in his potato storage — and also managed to heat his workshop using the same device. Cost-Effective Temperature Control for Potato Storage Per Try faced a common problem shared by many farmers: how to maintain the ideal temperature in a potato storage space without skyrocketing energy costs. Storage temperature has a direct impact on the taste, structure, and usability of potatoes. Early potatoes store best in humid conditions between +10 and +13 °C, while regular table potatoes need cooler conditions around +4 to +6 °C. For potatoes grown specifically for French fry production, like Try’s, the optimal storage temperature is between +6 and +8 °C. Traditional storage systems relying on outdated methods or external weather conditions often fail to deliver the necessary climate controlled storage. Building a cold room in Norway can cost up to one million NOK (approximately £72,000), and the lack of flexible portable solutions limits options for small producers. Try needed an affordable and adaptable alternative — and found it in the quiet portable air conditioner unit, HP-19. Key Challenges in Potato Storage Potatoes are sensitive to storage conditions, requiring precise control of temperature, humidity, and ventilation.• Too warm → potatoes sprout and soften• Too cold → they freeze and convert starches, affecting flavor and texture➡ The HP-19 enables accurate temperature control and consistent air circulation throughout the entire storage period — ideal for reliable climate controlled storage. HP-19 in real use: Field test in Norway Try installed the HP-19 portable air conditioner unit to test its performance in cooling his potato storage. He was able to adjust the temperature precisely to +6.7 °C — the ideal setting for potatoes intended for frying. He was impressed with how quickly the unit reached the target temperature and how well it maintained that level despite varying outdoor conditions. The HP-19 also kept energy consumption low throughout the trial, offering a clear improvement over previous methods where fluctuations increased both risks and operating costs. The unit includes an effective air conditioner exhaust hose, allowing warm air to be vented out efficiently. Try redirected the exhaust heat to his workshop, giving the device a valuable second function. As summer approaches, Try expects to gain even more insights into the unit’s performance in warmer conditions. However, he already sees great potential for HP-19 — particularly for smaller-scale agricultural operations. Why HP-19 Is a Smart Choice for Agricultural Use More affordable than building a cold roomInstalling traditional cold storage is a major investment. The HP-19 offers a much more economical solution for small and medium-sized farms. Mobile and flexibleThis mobile air conditioner suits both temporary and long-term needs. It can easily be moved between spaces depending on the season or storage demand. Cooling and heating with one unitWhile it cools the storage area, the unit’s warm exhaust air can be redirected to heat another space — maximizing energy use and efficiency. Quick setup and easy to useNo permanent installation is required. The HP-19 is ready to go out of the box — perfect for urgent or seasonal storage needs. Smart control via appEquipped with Wi-Fi and air conditioner remote control via smartphone, users can monitor and adjust temperature in real-time — from anywhere. This ensures better response to changes and more stable conditions. Powerful enough for up to 550 m³The HP-19 can cool or heat spaces up to 550 cubic meters efficiently. Learn more about Rex Nordic’s HP-19 mobile air conditioner. (Need more power? Explore the HP-60 model.)