Air heating of tennis courts with solid fuel heat generator PEL-H 250 (290 kW). Heating with pellets (pellets). Automated fuel supply system, automatic ignition system, weekly fuel capacity, automatic cleaning of combustion products, automatic mixing of burning material. The size of the site is 36x35x10.5 m. The total area of heating is 1260sq.m. Supply of equipment, design, installation. City of Lviv, st. Stryi, sports complex. Implementation of 2015g.