Warehouses have always presented a unique challenge when it comes to heating. Vast open spaces, high ceilings, constant door openings and fluctuating occupancy levels mean that maintaining a comfortable working environment is rarely straightforward. Traditional heating methods, particularly gas warm air heaters and older AC motor unit heaters have served the industry for decades, but the landscape of commercial heating is now changing rapidly. Rising energy costs, increasing environmental regulations and the widespread adoption of heat pump technology are reshaping the way industrial buildings are heated. As businesses look for systems that offer better efficiency, lower operating costs and improved compatibility with modern heating infrastructure, a new generation of solutions is gaining traction. Among these, Low Temperature Hot Water (LTHW) unit heaters are quickly becoming the preferred choice for modern work areas and warehouse heating. Understanding why these systems are replacing traditional heaters requires a closer look at how warehouse heating requirements have evolved.
Model Rage:
| Model | Heating Output (kW) | Heating Output (Btu) | Maximum Airflow (m³/h) | Electrical Supply | Notes |
|---|---|---|---|---|---|
| WX-1-EC | 12.4 kW | 42,300 Btu | 2100 m³/h | 220-240V~50Hz | Compact unit heater for workshops and small commercial spaces |
| WX-1.1-EC | 15 kW | 51,000 Btu | 2000 m³/h | 220-240V~50Hz | Optimised for Air Source Heat Pump (ASHP) systems |
| WX-2-EC | 22 kW | 75,000 Btu | 5300 m³/h | 220-240V~50Hz | Suitable for medium warehouses and industrial units |
| WX-3-EC | 37 kW | 126,000 Btu | 4850 m³/h | 220-240V~50Hz | High-capacity heating for larger commercial spaces |
| WX-4-EC | 55 kW | 126,000 Btu | 4850 m³/h | 220-240V~50Hz | Industrial high-output hydronic heating |
| WX-5-EC | 50 kW | 170,000 Btu | 5300 m³/h | 220-240V~50Hz | ASHP compatible high-capacity unit heater |
One of the main drivers behind this shift is the growing adoption of low temperature heating systems. Historically, many industrial buildings relied on high temperature heating circuits, often operating with water flow temperatures of 80°C or higher. These systems worked well with conventional heaters designed for high heat output, but they are increasingly at odds with modern energy strategies.
Today, many commercial buildings are transitioning towards low temperature hot water systems, typically operating with flow temperatures closer to 50–70°C. This approach is particularly important for buildings using Air Source Heat Pumps (ASHP) or hybrid heating systems, where lower operating temperatures are essential for maintaining efficiency. Traditional heating equipment often struggles under these conditions, as reduced water temperatures can significantly lower heating output. Modern LTHW unit heaters, however, are specifically designed to operate efficiently within these parameters, making them far more compatible with contemporary heating systems.
Another key development transforming warehouse heating is the adoption of Electronically Commutated (EC) motor technology. Unlike traditional AC motors, EC motors offer significantly improved electrical efficiency and more precise control over fan performance. This may sound like a minor technical detail, but in reality it has a substantial impact on overall heating efficiency.
EC motors allow unit heaters to operate with variable fan speeds, enabling the system to match airflow to the heating demand within a space. This results in smoother operation, better temperature control and lower electrical consumption. In many cases, EC motors can reduce fan energy usage by up to forty percent compared with conventional motor systems.
For facilities managers responsible for large buildings where heating equipment may operate for long hours during the winter months, these energy savings can translate into meaningful reductions in operating costs.
Warehouses themselves also present unique heating challenges that make modern fan heater technology particularly valuable. High roof structures mean that warm air naturally rises, creating temperature stratification where heat accumulates near the ceiling while the occupied areas remain cooler. Frequent opening of loading doors can further disrupt internal temperatures, allowing cold air to enter and heated air to escape.
LTHW fan heaters are designed to address these issues by delivering powerful and controlled airflow across the heated space. By projecting warm air downward and across the floor area, they help maintain consistent temperatures within the working zone while reducing stratification. The result is a more comfortable environment for staff and a more efficient use of energy. Another reason businesses are moving towards hydronic fan heaters is the increasing focus on future-proof heating systems. Across the UK and Europe, many organisations are working towards reducing carbon emissions and improving building energy performance. Heating systems powered by renewable electricity, such as heat pumps, are becoming an important part of this strategy.
Equipment that can operate effectively with low temperature heating circuits therefore plays a crucial role in enabling these transitions. LTHW unit heaters with EC motor technology are particularly well suited to this environment because they combine efficient air movement with compatibility across a wide range of hydronic heating systems.
This is where modern solutions such as the Powrmatic WX-EC range of hot water fan heaters are designed to fit. Developed for commercial and industrial applications, these units combine robust construction with energy-efficient EC motor technology to deliver reliable heating performance across a variety of building types.
List Of Accessories:
The range includes multiple output sizes suitable for different environments, from smaller workshops to large warehouse spaces. Models within the WX-EC series provide heating capacities ranging from compact systems designed for smaller units through to high-capacity heaters capable of distributing warm air across large industrial buildings. Because the units are designed for low temperature hot water operation, they can integrate effectively with both traditional boiler systems and modern heat pump installations. This flexibility allows building operators to upgrade their heating systems without needing to completely redesign their infrastructure. In practical terms, this means businesses can improve the efficiency of their heating while maintaining the reliability required in demanding commercial environments.
Applications for LTHW fan heaters are extensive. Warehouses and distribution centres benefit from the ability to move large volumes of warm air across open floor spaces. Manufacturing facilities require consistent temperatures to support production processes and employee comfort. Workshops, agricultural buildings and vehicle maintenance facilities also benefit from the robust heating performance provided by these systems.
As energy efficiency becomes an increasingly important factor in building management, the role of modern heating equipment continues to evolve. The shift towards EC motor LTHW unit heaters reflects a broader change in the way industrial spaces are heated – one that prioritises efficiency, flexibility and compatibility with future energy systems. For warehouse operators and facilities managers looking to modernise their heating infrastructure, these systems represent a practical step forward. By combining efficient fan technology with hydronic heating systems designed for modern energy strategies, EC motor LTHW unit heaters are helping shape the future of industrial heating.
