The waste oil heater is small prefabricated stove perfect for premises to 50 sq/m. The so called Spark model is inspired by russian designs. Tested with reduced air flow it burns 400 ml of oil for 40 min. The burning chamber can handle up to 3 litres with one loading - 5 hours non stop working. You can pour more oil while burning. It's safe becouse the oil do not burns, his vapor do. Optional drop feed from oil tank can be installed.
The stove is lightweight and cheap, easy to operate with only three replaceable parts. This means that the oil tank, the perforated burning chamber and the chimney box can be replaced, helping cleaning the ashes. Checkout the video.