There is a wide range of LPG bottles of various shapes and sizes available at 24 EKO petrol stations (of total 46), depending on their capacity and purpose: 10 kg and 35 kg.
One kilogram of propane/butane gas approximately gives 12.8 kWh of heat energy. Therefore, a 10 kg gas bottle has a total energy value of 128.0 kWh, and a 35 kg bottle has 448.0 kWh.
LPG bottles are available at the EKO petrol stations: