$20 · Kerosun wick heater

Great heater for a building or space where you don't have an electrical connection. These heaters provide both radiant and convection heat. Very efficient with no smoke ( but as they are a fuel using heater, they do release CO2 (and water vapour) into the air. They are a development of the Valor heater but have been improved from the English (?) design. They have been used in Asia for decades as a primary portable heating source during periodic cold weather.