Description
The Airfan Thermo 250 4250m3 is a large-capacity EC inline fan from Airfan’s professional Thermo range, offering 4,250 cubic metres per hour extraction capacity in a 250mm duct diameter. This model represents the highest output in the 250mm Thermo series — the specification of choice for very large growing rooms, high heat-load environments running multiple high-wattage fixtures, and commercial operations where maximum air exchange rate within a 250mm ducting system is the primary ventilation requirement.
The 4,250 m3/h output at 250mm duct diameter means this fan operates at a higher air velocity than similarly rated larger-diameter fans, which can be advantageous in systems where duct routing constraints limit the available diameter. The EC motor delivers this high output at substantially improved electrical efficiency compared to AC motor alternatives of equivalent capacity, reducing the operating cost of running continuous high-volume extraction throughout a grow cycle. Integrated speed control allows growers to operate at reduced capacity during cooler periods and ramp to full output during peak light-on temperature rises.
The Thermo series construction quality is designed for commercial applications where continuous 24-hour operation over extended seasons is the standard use pattern. Available at The Horticulture Company alongside the full Airfan Thermo 250 and 315 series and all associated ducting and filter systems.
Browse the full range: Explore our complete New Products range at The Horticulture Company. Also in this range: IONIC CALMAG PRO, UGRO XL BASIC 70LITRE, EXHALE CO2 BAG, PLANT !T YOYO (PACK OF 8).







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