The Sealey AB1258 is a powerful diesel and paraffin space heater delivering 135,000Btu/hr (40kW) heat output, designed for heating large commercial and industrial spaces up to 1,200m³. This robust heater features a clean-burning pump system that operates efficiently with either kerosene or diesel fuel, offering flexibility for different site requirements and fuel availability. Built with a stainless steel combustion chamber for durability and longevity, this space heater incorporates dual LED displays showing both ambient temperature and your desired thermostatically controlled target temperature. The 50-litre fuel tank provides up to 11 hours of continuous operation per filling, minimising downtime and refuelling interruptions on busy job sites. Engineered with professional contractors in mind, the AB1258 combines performance with practical features including integrated safety cut-outs for peace of mind, a fuel gauge for monitoring consumption, and heavy-duty wheels with a sturdy handle for easy site manoeuvrability. The 340W motor delivers an airflow of 529cfm whilst maintaining energy efficiency with an A rating. Ideal for construction sites, warehouses, workshops, and agricultural buildings where reliable, portable heating is essential. Features and Benefits: • Dual fuel capability accepts both kerosene and diesel for operational flexibility • Thermostatically controlled with dual LED display for precise temperature management • 11-hour runtime from 50-litre tank reduces refuelling frequency • Heavy-duty wheels and handle enable easy transportation around site • Automatic shut-off and safety cut-outs for secure operation • Heats areas up to 1,200m³ effectively Specifications: Airflow: 529cfm Automatic Shut-Off: Yes Brand: Sealey Energy Rating: A Fuel Tank: 50L Fuel: Kerosene/Diesel Heated Area: 42,300ft³(1,200m³) Motor Power: 340W Nett Weight: 27.8kg Output: 135,000Btu/hr(40kW) Running Time per Filling (Maximum): 11hr Supply: 230V~50Hz Transport Wheels: Yes