AAPA - Axial Unit Heater
The AAPA series is a high-capacity axial unit heater specifically engineered for large, high-ceiling spaces requiring powerful, uniform heat distribution across the full floor area. Manufactured from high-quality, corrosion-resistant galvanized steel with a self-powered aluminum axial fan and a copper-tube, aluminum-finned heating serpentine, the AAPA delivers heating capacities from 4,100 to 24,200 kcal/h — making it the ideal hot water or steam heating solution for warehouses, hangars, workshops, and sports halls with ceiling heights exceeding 4 meters.
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Areas of Use
The AAPA series is specifically designed for large-volume spaces with high ceiling heights where conventional radiators or fan coil units cannot achieve adequate heat distribution across the entire floor area. Its powerful axial fan throws heated air over long distances, ensuring uniform comfort conditions throughout the space. Use these high-capacity axial unit heaters confidently in:
- Industrial warehouses, logistics centers, and distribution facilities
- Aviation hangars, vehicle maintenance facilities, and large workshops
- Sports halls, gymnasiums, and indoor recreation facilities
- Manufacturing plants and production facilities with high ceiling heights
- Large garages, showrooms, and commercial spaces with ceilings exceeding 4m
Key Features & Specifications
High-Capacity Heating — 4,100 to 24,200 kcal/h: The AAPA series is available across a heating capacity range of 4,100 to 24,200 kcal/h, ensuring the correct unit size can be specified for any large-volume space — from medium workshops to massive industrial warehouses and hangars requiring very high heating output.
Aluminum Axial Fan for Long-Distance Heat Throw: Powered by a self-contained aluminum axial fan that generates high-velocity airflow, throwing heated air over long distances to achieve uniform temperature distribution across the full floor area of large, high-ceiling spaces — overcoming the stratification effects that make conventional heating systems ineffective in tall industrial buildings.
Copper-Tube Aluminum-Finned Heating Serpentine: The heating coil is manufactured with copper tubes and aluminum fins — a proven, high-thermal-efficiency design that provides excellent heat transfer performance, long service life, and resistance to corrosion in standard industrial environments.
Standard 90°C/70°C Hot Water Operation: Manufactured as standard for 90°C/70°C hot water working regime — the most common heating system specification in industrial and commercial buildings — ensuring seamless integration with existing hot water boiler plants without any system modifications.
Steam Operation Available on Request: For facilities equipped with steam distribution systems, the AAPA can be manufactured for steam operation upon request — making it compatible with the full range of industrial heating plant configurations without design compromise.
Optimized for Ceiling Heights Exceeding 4 Meters: Specifically engineered and sized for spaces where ceiling heights exceed 4 meters — the threshold at which conventional heating devices become ineffective. The powerful axial airflow prevents heat stratification and ensures warm air reaches occupants at floor level, where it is actually needed.
Optional Plastic Propeller: For environments where aluminum propellers may be subject to chemical attack or corrosion, an optional plastic propeller is available — extending the application range of the AAPA series to more chemically aggressive industrial environments.
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