A Portable Air Conditioner Solved a Laundry’s Heat Challenge
In brief In laundries, heat tends to concentrate at specific workstations such as sheet ironers, tumble dryers and pressing equipment, where large amounts of heat are generated. In a UK-based laundry, temperatures in the hottest areas rose to well over +40 °C, placing significant strain on employees. The HP-19 (19,000 BTU) portable air conditioner enabled precise, targeted cooling combined with effective dehumidification. WHO and ILO emphasise the importance of targeted cooling solutions in managing heat in hot indoor working environments. Laundries are not usually thought of as hot workplaces, yet in reality they can be surprisingly demanding, especially during the summer months. In a professional laundry in the United Kingdom, heat built up around the sheet ironers, tumble dryers and pressing area, where temperatures during peak periods rose clearly above +40 °C. The heat did not spread evenly throughout the facility but accumulated at these specific workstations. This had a direct impact on employee comfort and endurance. To address the issue, the site selected the Rex Nordic HP-19 portable air conditioner, allowing cooling to be focused precisely where the heat was felt most intensely. Heat challenges in laundries originate from machinery The heat generated in laundries is a direct result of the machinery used in daily processes. Sheet ironers, tumble dryers, pressing and other finishing equipment continuously produce large amounts of heat as wet textiles are dried, ironed and finished. This heat is released directly into the workspace—often exactly where employees spend long periods working next to the machines. As a result, heat does not distribute evenly across the entire laundry but concentrates at certain workstations. International studies show that in such environments, employees are exposed to heat stress, which can reduce stamina, concentration and physical performance. The U.S. Occupational Safety and Health Administration (OSHA) recognises laundries as workplaces where localised heat can increase fatigue and accident risk unless heat loads are actively managed and cooling is properly targeted. High temperatures also place additional strain on machinery. A more stable and cooler operating environment supports equipment durability, reduces maintenance needs and lowers the risk of unplanned production downtime. In this way, cooling benefits both employee working conditions and overall operational reliability. Targeted cooling in practice: a 19,000 BTU air conditioner in laundry use The HP-19 is a refrigerant-based portable air conditioner with a cooling capacity of 19,000 BTU per hour, equivalent to approximately 5,570 watts. The BTU value indicates the unit’s ability to remove heat energy from the air: the higher the rating, the more heat the unit can transfer out of the space. In a laundry environment, where sheet ironers, tumble dryers and presses generate heat continuously, this level of capacity enables effective cooling even during prolonged operation. The HP-19 cools air using the same principle as fixed air conditioning systems. Thanks to the refrigerant circuit, temperature control is precise and reliable, rather than a short-term cooling effect. In cooling mode, the user can set a target temperature between 18 °C and 30 °C, and the unit automatically maintains the selected temperature even during heatwaves. The units were deployed on a workstation-specific basis: on both sides of the sheet ironer near the tumble dryers in the pressing area A key factor was also the air conditioner’s high dehumidification capacity, removing up to 118 litres of moisture per day. High humidity is typical in laundries and makes heat feel heavier and more exhausting. When moisture is controlled, heat is perceived as significantly more tolerable and working conditions improve—without the need to lower the temperature throughout the entire facility. The HP-19 can also be used to improve air quality through different filtration options. In laundry environments, this can reduce airborne dust and fibres, helping to improve indoor air quality and support employee working conditions. Why was cooling focused only on specific workstations Laundry facilities are often large, with continuous production processes. Although a portable air conditioner may be suitable for spaces of up to 550 m³, cooling an entire hall is not always the most practical solution if heat is generated locally around machinery. In such cases, a large portion of the cooling capacity would be directed to areas where heat is not the primary issue. In this case, cooling was deliberately targeted at the workstations with the highest heat load. This not only improved working conditions but was also an energy-efficient solution: by avoiding unnecessary cooling of the entire space, overall energy consumption remained significantly lower. The portable air conditioner made it possible to: deliver cooling directly to the employee’s working area reposition units flexibly according to production flow and workstation needs deploy the solution quickly, without structural modifications or production downtime This approach is in line with recommendations from the World Health Organization (WHO) and the International Labour Organization (ILO). Both organisations emphasise that in hot indoor working environments, heat exposure should primarily be managed through targeted technical solutions, especially at workstations where employees are exposed to heat for extended periods. Employee experience – less heat, a better working day Although the solution was technically simple, its impact on everyday work was clearly noticeable. Employee feedback was unanimous: the hottest workstations became manageable, and the working day felt lighter even during periods of high temperatures. Research shows that even a moderate reduction in temperature and humidity can improve concentration, reduce fatigue and increase job satisfaction. In this laundry, the improvement was quickly reflected in daily work and in employee experience. A portable air conditioner as part of a functional working environment The British laundry continues operating as before—but conditions at the hottest workstations are now clearly better. The portable air conditioner proved to be a practical solution in an environment where heat is generated by machinery rather than outdoor conditions. When cooling and dehumidification are correctly targeted, working conditions can be improved without major modifications to the facility. The HP-19 is particularly well-suited for professional use, targeted cooling and situations where a flexible, rapidly deployable solution is required. More information about the HP-19 portable air conditioner.
Portable Air Cooling for Event Tents and Temporary Spaces
Summary Suitable for event tents, outdoor events, trade fairs and pop-up spaces Cooling capacity can be scaled according to the size of the space Can be implemented with multiple smaller units or by combining different unit sizes Can also be used as a fan, but the most efficient cooling is achieved with water Units can be connected directly to a water supply or operated using the internal water tank Temporary event spaces often present challenges in warm weather conditions. Event tents, exhibition stands, outdoor sales areas and pop-up environments can heat up quickly in direct sunlight, and traditional air conditioning is usually not a viable option in these types of spaces. What is needed instead is a portable solution, quick to deploy and powerful enough to work in open or semi-open environments. Rex Nordic air coolers are designed to efficiently cool large areas, with minimal effort and no permanent installation required. The smallest model cools areas up to 120 m², the mid-size model up to 250 m², and the largest model up to 500 m². The cooling solution can be scaled to different room sizes either by using multiple smaller units or by combining models of different capacities within the same space. Sizing the Cooling Solution for Event Environments In event spaces, cooling is typically most effective when implemented in one of the following ways: with several smaller units, when the space includes multiple activity areas or structures that affect airflow with larger-capacity units, when the space is open, high-ceilinged or hall-like The objective is not to chill a sealed indoor environment, but to improve temperature conditions and airflow across a wide area, helping guests and staff remain comfortable for longer and ensuring a pleasant experience even in hot weather. Evaporative Cooling Performance Is Based on Water Rex Nordic air coolers can be used as high-performance fans, but the best cooling efficiency is achieved when the unit operates using evaporative cooling with water. Water supply can be arranged in two ways: the unit can be connected directly to a water line, enabling continuous operation or water can be added manually to the unit’s internal water tank The system does not require refrigerants or fixed installation, which makes the coolers ideal for temporary and mobile environments. Typical Use Cases During summer and early autumn, Rex Nordic air coolers are commonly used in: event tents and private celebrations corporate events and customer days trade fair and exhibition stands food-service and catering areas backstage and staff working areas A key advantage is that the same unit can easily be moved from one location to another and reused across multiple events. Case: Flexible Cooling in a Summer Wedding Tent Using Two REX14000 Units A large outdoor summer wedding was held in a 200 m² event tent, including a full seating area, dance floor and a high number of guests. Due to lighting, activity and crowd density, the temperature inside the tent was expected to rise to an uncomfortable level as the evening progressed. Instead of relying on a single larger unit, the organiser chose to install two REX14000 air coolers. Each unit is capable of cooling up to 120 m², making the combined capacity well-suited for the tent size. The units were positioned on opposite sides of the tent, allowing airflow to cross the space evenly and creating more consistent cooling throughout the venue. Cooling was implemented by connecting both units directly to a water supply, ensuring stable performance during the entire event. While a single REX25000 could technically have handled a tent of this size, using two smaller units allowed better airflow control, more flexible placement and more even cooling distribution across different activity zones within the tent. During the evening, the tent remained pleasantly cool, guests stayed inside longer and the dance floor remained in active use. Feedback highlighted improved comfort and a more enjoyable atmosphere, leading the organiser to decide to use the same setup for future events. Portable Cooling for Events – A Practical Solution for Temporary Spaces Temporary event venues are always a balance between flexibility, usability and environmental conditions. A solution that can be moved, scaled to the space and deployed quickly provides a practical way to improve event comfort without heavy infrastructure. Rex Nordic air coolers — REX14000, REX25000 and REX48000 — are designed precisely for these environments: they deliver comfortable conditions in large spaces when the event is temporary, but the experience still needs to feel consistently high-quality for every guest.
Airrex diesel heater – steady warmth and real savings
Good heating isn’t just about power. It’s also about cost efficiency – directing warmth exactly where it’s needed. Airrex diesel infrared heaters have proven in practice that consistent comfort doesn’t require high fuel consumption. The following examples show how Airrex heaters have helped keep heating costs in large industrial spaces under control – without compromising comfort. Proven results with infrared heating: only 2.5 litres per day Many are surprised to learn how little fuel Airrex diesel heaters actually consume. They’re designed to heat spaces effectively and evenly, without wasting energy where it isn’t needed. Grels Ström, a retired technical expert from Rex Nordic, uses an Airrex heater in his 480 m³ warehouse. The building has mineral wool insulation in the ceiling, plasterboard walls, and a concrete floor – a structure that stores heat efficiently. Previously, the warehouse was heated with direct electric heating, but switching to diesel brought a clear drop in both consumption and costs. Ström explains his experience: “At first, fuel consumption can be slightly higher. It usually takes about a week or a week and a half before it stabilises. Infrared heat is absorbed directly into the structures, and once they’re fully warmed, surprisingly little fuel is needed to maintain the temperature.” He keeps the warehouse at +15 °C when it’s around zero outside and has achieved remarkably low fuel consumption. Once the building is fully warm, daily consumption averages only about 2.5 litres of diesel. The Airrex heater has run reliably without problems and has required almost no maintenance. A slightly higher initial consumption is normal since building materials often contain moisture that must first dry out. Once dry, the system reaches its optimal efficiency. This is where Airrex infrared technology truly shines. The heat is stored within the structures and stays there. After that, only short heating cycles are needed to maintain a pleasant temperature day after day – and the savings show directly on the fuel bill. Smart thermostat keeps consumption low Every Airrex infrared heater comes with a built-in thermostat that helps minimise fuel consumption. The heater starts and stops automatically to maintain the desired temperature. Diesel is burned only when needed – and it’s metered precisely, no more than necessary, keeping consumption to a minimum. In practice, this means the heater works independently. Once the building’s structures have warmed up, the unit maintains the temperature with short operating intervals. There’s no need for constant adjustments – the thermostat does the work for you. Unlike traditional air-blowing heaters, Airrex units don’t push hot air to the ceiling or out the door when it’s opened. Infrared heat is directed straight into walls, floors, and machinery, which absorb and store it. As these structures retain heat, energy use remains exceptionally low. If a door is opened, the stored warmth quickly restores the indoor temperature. Long-term savings with Airrex diesel heaters Markku Ojanen has seen the difference first-hand. He heats a 1,080 m³ (360 m², 3 m high) insulated hall, which used to rely on radiators and fan heaters. The previous system consumed around 2,500 litres of oil per year. After installing an Airrex AH-300 diesel heater, the improvement was immediate. In the first winter alone, annual fuel use dropped to about 1,000 litres – less than half of the previous amount. He keeps the hall at a steady +9–10 °C, raising it to +13 °C while working. Over ten years of use, the savings have amounted to roughly €10,000–11,000, and the same heater continues to operate flawlessly. “Maintenance has been done on time, but no repairs have ever been needed,” Ojanen says. “It just keeps going.” Sustainable warmth you can feel Airrex infrared heating works on a simple yet 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. Once these surfaces are warm, they release heat evenly back into the air, maintaining a consistent indoor temperature. This stored warmth acts as a natural heat buffer, keeping fuel consumption low after the first weeks. The heater runs only as much as needed to maintain balance. That’s the key difference between infrared and traditional fan heaters. Infrared heat doesn’t escape when doors open or air circulates. The stored warmth in the structures quickly restores the temperature, keeping the heat where it’s needed and the savings ongoing. Site 1 – Warehouse Type: Warehouse 480 m³ Structure: Concrete floor, ceiling insulation, plasterboard walls Previous heating: Direct electric New solution: Airrex diesel infrared heater Maintained temperature: +15 °C in around 0 °C outdoor conditions Average daily fuel consumption: ~2.5 L diesel Maintenance: Reliable operation, almost no maintenance required Savings: Significantly lower consumption than the previous system Site 2 – Industrial hall Type: Insulated hall 1 080 m³ (360 m², 3 m height) Previous system: Radiators + fan heaters Previous fuel use: ~2,500 L oil/year New solution: Airrex AH-300 diesel heater Current fuel use: ~1,000 L/year Usage time: 10 years Estimated savings over 10 years: ~€10,000–11,000 Reliability: Same heater still running flawlessly, no repairs needed
A Cooler Barn Supports Stable Milk Production in Summer
In brief Heat stress reduces cow welfare and milk yield during hot periods. The HP-19 air conditioning unit provides targeted cooling in barns without fixed installations. Cooler and drier indoor air supports feed intake, resting behaviour, and a steady milking rhythm. The solution is flexible and easy to move between different spaces and needs. Summer heat often becomes visible on dairy farms first in animal behaviour – and eventually in the milk tank. As temperatures rise, even small changes in barn conditions can affect how cows eat, rest, and attend milking. Heat is therefore one of the key challenges on dairy farms, influencing both milk production and animal welfare. Targeted cooling with the Rex Nordic HP-19 air conditioning unit offers a practical way to manage the effects of heat waves in everyday farm operations. Heat stress can occur at surprisingly low temperatures Heat stress is often thought to be a problem only during extreme heat waves. However, research and expert assessments show that dairy cows may begin to suffer from heat stress already when barn temperatures rise to around +20 °C, especially when humidity levels are high. In these conditions, cows must use energy to regulate body temperature instead of directing it toward feed intake and milk production. As outdoor temperatures increase, livestock buildings tend to warm up quickly but cool down slowly. This means that heat stress thresholds are easily exceeded indoors even during short heat spells, and the effects may persist after outdoor temperatures drop again. For dairy cows, the optimal temperature is below +18 °C. When temperatures rise above +20 °C, cows begin to reduce feed intake and rumination, which quickly leads to lower milk yields, particularly in high-producing cows. Production losses are quickly reflected in farm economics The effects of heat stress are not limited to prolonged heat waves. Studies show that even short periods of heat can reduce milk yield by several litres per cow per day. During extended hot periods, production losses of up to 4–5 kg per cow per day have been observed. In exceptionally warm years, the number of hot days in Finland can rise into the dozens. For example, in 2018 there were around 40 hot days in southern Finland and about 20 in Lapland. In many regions, milk yields remained below normal for up to four months, from May through August. Targeted cooling is a practical solution for barn conditions The Rex Nordic HP-19 air conditioning unit offers a practical solution when efficient yet flexible cooling is needed without permanent installation. Designed for professional use, the unit is well-suited for environments where heat load varies throughout the day. Cooler and drier conditions for the animals The HP-19 produces cool, dehumidified air and allows it to be directed precisely where it is needed via separate exhaust air ducts. In a barn, this may include milking robot waiting areas, feed table edges, or resting zones where cows spend most of their time. Research indicates that targeted cooling in animal living areas is more effective than cooling an entire building, as it directly affects feed intake and resting time. By directing cool air to the right locations, effective results can be achieved without cooling the whole structure. This makes the solution energy-efficient and easily scalable for barns of different sizes. If necessary, multiple units can be placed in different parts of the building according to heat load. Cow behaviour reveals the success of cooling Based on farm experience and research, the benefits of cooling are quickly reflected in cow behaviour. Heat stress reduces resting time and feed intake, which directly impacts milk production. When indoor air remains more comfortable even during hot days, cows do not need to spend energy on cooling their bodies. They eat more normally and rest longer, reducing the negative effects of heat stress and helping maintain more consistent production levels. A cooler indoor environment also encourages cows to return indoors during warm nights, helping to stabilise the milking rhythm and improve overall utilisation of the milking system. Drier air supports indoor air quality and udder health High temperatures combined with high humidity place additional strain on animals and degrade indoor air quality. Heat stress has been shown to increase somatic cell counts, which are often associated with compromised udder health. Mastitis can reduce the milk yield of an affected cow by 4–10 percent. According to studies, somatic cell counts are typically highest in late summer. The HP-19 removes moisture from the air during operation, helping to keep barn air fresher and more comfortable for both animals and staff. Condensed water is collected in the unit’s internal tank, with emptying being the only regular maintenance required. Better conditions for people as well Working in barns during hot weather is demanding for people too. Targeted cooling improves comfort in milking areas, feeding zones, and service spaces. As heat load decreases, endurance improves and the working environment becomes safer and more pleasant. An effective response to summer heat challenges The Rex Nordic HP-19 provides a fast and practical way to improve barn conditions when temperatures rise. Targeted cooling, humidity control, and portability make it a versatile solution for a wide range of agricultural environments. When animals feel better, production remains more stable – and working conditions improve at the same time. The cost of heat stress on a dairy farm Example farm: 100 lactating cows When the barn’s average daily temperature remains above +20 °C: Milk yield may drop by 4–5 litres per cow per day Total production loss: 400–500 litres per day Per month (30 days): 12,000–15,000 litres less milk Average producer milk price (May–July 2023): €0.5135 per litre Economic impact: Per day: €205–257 Per month: €6,156–7,700 The calculation is based on production losses observed in research and academic studies on heat stress (Hulsen 2009; Holma 2020; Jääskeläinen 2020).
Airrex Diesel Heaters Power a Scottish Rally Workshop
A professional rally team in Scotland heats its workshop with three Airrex diesel infrared heaters, the oldest in use for ~12 years. Fuel consumption is extremely low and noticeably lower than their previous noisy, smelly diesel blowers. Reliability is described as “fantastic,” with minimal maintenance needed. The heaters are also transported to international rally events to keep service areas warm. In the Scottish Borders, where cold, damp winters are a part of daily life, a professional rally team has built a workshop environment that keeps pace with the demands of world-level motorsport. Their facility in Kelso includes several work areas: the main workshop, a dedicated transmission and engine rebuild room, and a paint shop. Much of the building is insulated, helping maintain stable temperatures during intensive winter workloads. The team runs a full rally car programme, building, preparing, repairing, and rebuilding modern machines that compete in championships across the world. Reliability, precision, and properly controlled working conditions are essential — both for the crew and the cars. Twelve Years with Airrex Infrared Heaters The workshop operates three Airrex diesel infrared heaters, the oldest of which has been running for around 12 years, still performing without issues. According to owner Dommy Buckley, Airrex stood out immediately: “They’re a class apart. Very economical and so clean burning. You can’t get better.” The heaters are used seasonally but continuously throughout the winter, from October to April, non-stop every day. The team even transports their diesel heaters to colder international rally events in France, Finland, and Norway, relying on them to keep service areas warm in harsh outdoor conditions. Stable Heat from a Space Heater — Even with Doors Opening The workshop features a gable-top roof with a high peak, which can easily lead to rising heat loss. To compensate, the team uses a small air-blower fan to push warm air back down to the work area. Together with Airrex’s infrared heating technology, it keeps the space warm and consistent even when doors are constantly opening. According to owner Dommy Buckley, “It works a treat.” Fuel Efficiency That’s Hard to Believe Fuel consumption is one of the first things people ask about — and it’s also where the workshop has seen one of the biggest differences. When talking about it, Buckley can’t help but laugh: “It’s like nothing! Honestly… we’re a spreadsheet-free environment, but it’s easy to work out they’re efficient.” Airrex diesel infrared heaters are designed to use far less fuel than traditional blown-air diesel units, and the team sees this daily in both their running costs and overall comfort. Before switching to Airrex, they relied on older heaters that Dommy remembers all too well: “Terrible, noisy, smelly prehistoric machines.” The contrast was immediate. With Airrex, fuel use dropped sharply, the exhaust smell disappeared, and the workshop environment became quieter, cleaner, and far more pleasant to work in. Maintenance and Reliability of Their Diesel Heaters While the team has occasionally used a Service Kit, most of the maintenance today is handled by Rex Nordic’s Darren, whose expertise has made the whole process effortless. As Buckley puts it: “Darren’s skills are much better and easier to just get him to do it!” Reliability is another area where the heaters have stood out. When asked to summarise their performance over more than a decade of use at the workshop — and on the road — Dommy doesn’t hesitate: “F A N T A S T I C ……” The heaters require minimal attention, deliver consistent heat regardless of the environment, and have become a trusted part of the team’s operation. Dommy has recommended them widely: “I’ve recommended them to a lot of people. All spaces — they work anywhere, really.” From insulated workshops to temporary outdoor service zones at international rally events, Airrex diesel infrared heaters have proven to be dependable partners wherever the team goes. Motorsport Workshop (Scotland) Type: Rally car workshop Structure: Mostly insulated, gable-top roof Heating: Three Airrex diesel infrared heaters (oldest ~12 years) Usage: Daily from October–April Previous heating: Noisy, smelly, blown-air diesel units Fuel use: Very low (“like nothing”) Reliability: Excellent, trouble-free Maintenance: Minimal; serviced by Rex Nordic technician Extra use: Taken to rally events abroad
Flexible local cooling for expanding Swedish company
When the summer sun burns on the 4,700 m² workshop roof at the company Kvarnstrands in Småland’s Ekenässjön, 8 REXNORDIC Coolers now keep the temperature in the premises at a pleasantly cool level. Inside the workshop of the family company Kvarnstrands, 50 of the total of 95 employees work at several different machines to manufacture and sharpen top-class cutting tools for the wood industry in Europe. The machines used are CNC machines, washing machines, oil purifiers, and robots. In recent years, the business has grown, and with more heat-generating machines in the premises and with restrictions on ventilation on the facade, the indoor climate during the summer months has become a challenge for the company and its employees. Maintenance manager Alexander Sellman did careful research on which cooling solutions could work for the company’s needs – today and also in the future. -Our business is constantly developing, and we need a flexible solution for cooling the premises, says Alexander, who has worked at Kvarnstrands for 17 years. Based on changed EU regulations in the future, the choice of cooling medium was an important issue for us to take into account. Kvarnstrands took help from Rex Nordic’s technical sales advisor in Sweden, Jon Lindahl, to find the best solution for their conditions. The choice fell on 8 REX14000, which are deployed in strategic locations in the premises. -We are noticing that many companies in the manufacturing industry have the same challenges, and it is very rewarding to be able to assist with affordable solutions with the launch of the Eco series, says Jon Lindahl. Kvarnstrands was founded in 1939 in Ekenässjön and the business premises have been expanded several times since then. To be able to shop locally was an important factor in why the choice fell on RexNordic. -We prefer to shop from our neighbors and here we were able to buy the machines through Axima in Vetlanda and get good and fast help and support from a Swedish salesperson, says Alexander. At Kvarnstrands, the evaporative coolers are running throughout the working hours. And the employees have found clever ways to keep the tanks filled and maximize the cooling effect. -We exercise our fire hoses and fill the coolers directly with them, says CNC technician Violand Tiku, who also puts a few ice cubes in the water to get extra efficient cooling when the outside temperature reaches above 30 degrees Celsius. The coolers were delivered just a couple of weeks ago and the employees are already experiencing less heat stress. -Yes, there is a big difference and it is very nice with the cooler air, says Sara Vilhelmsson, CNC operator. Another advantage is that the coolers are energy efficient, the REX14000 model draws only 510W, and can easily be connected to a standard 10A outlet in the room. Violand Tiku has a REX14000 placed about 10 m away and he appreciates the coolness a lot. -It’s really great, he says enthusiastically. Previously, I only had two normal room fans in this corner, but with the coolers’ adjustable fan I can adjust the airflow myself and adapt it based on the outside temperature. Jon Lindahl sees an increasing interest in evaporative coolers in many different businesses, including in milk production and the entertainment and event industry. -These coolers really create many great opportunities for RexNordic to reach new customer groups and I look forward to continuing to develop sales, he says. Contact sales to to hear more
Vantaa Gym Gets Cooler and Fresher with EcoCooler
In Havukoski, Vantaa, the Vantaa Gym Club acquired a Rex Nordic EcoCooler at the beginning of summer 2024. Customers of this family business, which has been operating for over 30 years, immediately noticed from the first days that the air in the gym was pleasantly cooler and fresher than before. Vantaa Gym has a gym area of 600 square meters with a height of over six meters. The company purchased a mid-sized REX25000 model from Rex Nordic’s EcoCooler range, which has an air flow of up to 25,000 cubic meters per hour. The cooling capacity of the movable EcoCoolers is heavily based on the evaporation of cold water through a honeycomb pad. The advantages of the cooler include efficient cooling without water mist, large air flow, low energy consumption, and no installation costs. “There is a clear temperature difference in the hall when the EcoCooler is in use. Customers have praised how pleasantly cooler and fresher the air is”, says Mika Holappa, owner of Vantaa Gym. At Vantaa Gym, the REX25000 was placed on the second floor in the treatment room, from where the cooler blows into the gym through an open interior window. This way, the cooler did not need to be placed among the gym equipment or people, and the cool air spread widely in the hall as it fell down. “We really didn’t have the opportunity to acquire any other solution for our premises. We rent from the city, and in the same “hectare-sized” hall there are other businesses, so we cannot, for example, install fixed cooling solutions. At first, I thought of buying ten smaller fans scattered around the hall, but then I discovered the EcoCooler on the internet and decided to try it.” “When the sun shines strongly through the skylights, the hall has been extremely hot and, at worst, felt like “the oxygen is running out”. There is basic ventilation in the hall, but it is not sufficient in hot weather. It helps to circulate the air and push cool air down while also bringing replacement air into the room, but nevertheless, the EcoCooler has done its job. In cooler weather, I have had it on half power. When it has been warmer, the fan has been on full power.” In addition to the REX25000, Rex Nordic’s EcoCooler range includes the smaller REX14000 and the larger REX48000. They are designed for different sizes of rooms, run on standard power, and do not require fixed installation or electrical work. Water directly from the hose to the tank The REX25000 has practically been constantly connected to the water supply at Vantaa Gym, which means that cold water has been constantly flowing into the EcoCooler tank. The water has been consumed in moderate amounts relative to the benefit, and there have been no humidity problems due to the EcoCooler in the hall. The water evaporates from the EcoCooler; it does not spray or cause water mist. “In hot weather, the water is constantly on. I also tried the cooler by simply filling the tank. In that case, the tank (170 litres) used water in 8-10 hours”, estimates Holappa. The open and bright Vantaa Gym has a versatile gym with modern equipment, where professional guidance is available if desired. At Vantaa Gym, one can also purchase gym programmes as well as personal training, physiotherapy, massage, and nutrition advice. The gym also allows for boxing or focusing on stretching exercises. There is a traditional sauna in the men’s changing room and an infrared sauna on the women’s side. There is also a play area for children. “It is important for us to listen to our customers and purchase equipment according to their wishes and needs. Our gym is accessible via an app around the clock every day. One can also purchase only the services needed, even for a single visit in the middle of the night. We do not bind our customers to anything.” Vantaa Gym is located at Hosantie 2, Vantaa. Vantaa Gym Club https://vantaagym.fi
Airrex AH-300 helped cut a garage’s costs significantly
Two years ago, Riku Turunen from Kontiolahti was considering the heating costs of his industrial hall. It consumed a lot of power and the bills really reflected that. Things had to change in a sensible manner. Riku’s garage hall is 135 square metres in size, and the highest point of the roof is at four metres. The large roll-up doors are prone to waste heat, so the task was a challenging one. Airrex AH-300 was selected as the heating device. AH-300 is an almost odourless, diesel-powered infrared heater with a 100% efficiency that is very well suited for industrial halls such as Turunen’s garage. Practice showed instantly that Airrex was a great solution because the device was easy to use as well as cost-efficient. “I must say that over the past two years, I’ve noticed how reliable and easy this device is to use. It’s mainly been in one place, and I’ve had no need to do anything to it although I’m using it all the time.” Besides convenience, savings are playing an important role now. “Earlier, if a period of, say, three weeks incurred an expense of a little more than €680, now I’m only spending €370, fuel included. Annually, that’s quite a big sum of money,” Turunen ponders. Once again, all that was needed was one device to solve issues. Airrex AH-300 reduced heating costs, and Riku Turunen can now focus on the essential – conducting his business – without any worries. READ MORE ABOUT AIRREX AH-300
Melting snow and ice with Airrex AH-800 heater
Founded in 1995, Amados Oy is specialised in the marketing and sales of machines related to construction, agriculture and property maintenance in Finland and Russia. The heater Airrex AH-800 was acquired to heat Amados’ workshop hall approximately 2.5 years ago, and it has been in heavy use ever since. Mikkeli-based Amados’ hall is 5–6 metres high and spans approximately 150 square metres, and various working machines are washed there throughout the year. At worst, half a metre of snow may pile up on top of vehicles such as wheel loaders and tractors in winter when they are driven to the hall for washing. “It only takes around three hours to deal with a large amount of snow and ice until it’s all melted away. The heater is in heavy use at that point, but it works superbly,” says Jari Ikonen from Amados. Previously, hot-air blowers were used for heating in Amados’ hall but, according to Ikonen, they were susceptible to becoming dirty. Airrex has no such issues. The diesel-powered infrared heater AH-800 is in continuous use at Amados in the cold season, and 800 litres of fuel is consumed annually. The heater is in heavy use, indeed. READ MORE ABOUT AH-800
How a European stable keeps horses cool and comfortable with REX14000
Key highlights Up to 12°C cooling: Ensures comfort for horses during hot days. Safe and chemical-free: Evaporative cooling using water with optional ice cubes. Quiet operation (55 dB): Maintains calm in animal environments. Portable and compact: Easy to move around stables and arenas. Enhanced worker comfort: Cooler conditions for stable staff. Proven versatility: Larger REX Nordic models, like the REX25000, deliver excellent results in outdoor fields, reducing heat and deterring horseflies. Battling summer heat in horse stables During the hot summer days, when temperatures inside horse stables can soar above 30°C (86°F), the environment often becomes uncomfortably hot, causing stress for the animals and disrupting their routine. To ensure optimal conditions for the horses’ well-being, a horse stable in Europe decided to try the REX14000 Air Cooler to solve the issue. Understanding the cooling challenges in stables The stable faced extreme temperatures and humidity that affected the horses’ comfort and performance. Traditional cooling solutions, such as fans or air conditioning, presented challenges: fans often require large units that take up valuable space and are not efficient at cooling since they merely recirculate the existing hot air. Air conditioning systems, while effective, are typically impractical and expensive in a stable environment. How REX14000 solves the heat problem in horse stables The REX14000 was chosen for its portability, lightweight design, quiet operation, and ease of use. It requires both an electricity connection and a water supply, which can be either a direct connection or filled manually. The unit provides up to a 12°C cooling effect depending on the ambient temperature. Using natural evaporative cooling, it ensures safety for both animals and handlers. Good air circulation, such as open windows or proper ventilation, is recommended to maintain balanced humidity levels. The quiet operation, at around 55 dB, ensures horses remain calm and unbothered by the cooler’s presence. Unlike standard fans, which merely move existing hot air around, the REX14000 delivers real cooling by introducing a fresh, cooled airflow. Its compact design occupies minimal space, making it ideal for busy stables and arenas. Cooling in action: Horses’ reactions and staff feedback After implementation, the stable manager reported a noticeable difference in the horses’ behavior. Horses were visibly more relaxed, some even choosing to stand near the cooler’s airflow. The improved comfort led to more effective training sessions and better overall animal welfare during the hottest months. Importantly, the stable staff appreciated the unit’s portability, allowing it to be repositioned between stables, arenas, and grooming areas as needed. The stable workers were also pleased to work in conditions that were much cooler and more comfortable. Why REX14000 is a must-have for horse stables The REX14000 Air Cooler proved to be a reliable and animal-friendly solution for keeping horse stables cool and comfortable during the summer heat. By providing a safe, quiet, and effective cooling method, it contributed to improved animal welfare and performance. In addition to the REX14000, some stables in Europe have tested REX Nordic’s larger air coolers, such as the REX25000, in outdoor stable settings with excellent results. The powerful airflow from these larger units not only provided significant cooling but also helped deter horseflies, which are a common nuisance for horses in fields. Some horses even spent time next to the air coolers, enjoying both the cooling effect and the reduced presence of biting flies. This reinforces the value of REX Nordic’s air cooling solutions for both indoor and outdoor equine environments. This case highlights REX14000’s versatility not only for horse stables but also for any animal facilities or workspaces needing efficient, chemical-free cooling.