english: During mild winter conditions the dishes were able to bring a 3-liter aluminum kettle to boil in 20-25 minutes, and cook a soup with rice and potatoes in an aluminum pressure cooker in around 20 minutes.
non_english: V období mírné zimy byly kolektory schopny uvést do varu tři litry vody v hliníkové konvici za 20–25 minut. Uvaření polévky s rýží a brambory v hliníkovém tlakovém hrnci trvalo asi 20 minut.