We have had an "oil" heater in our house for years and really like it. As it is not under pressure, we have had no fears of any leakage. However, it does take a bit of floor space, gets quite hot, and need circulation around it. At the same wattage, we also have several quite small ceramic type heaters which have fans, do not take much space, and produce enough heat to keep us confortable. They o require some space in front, and the air flow can be quite strong, but produce very little if any heat around them and to the sides. This allows them to be placed in a small shelf or counter top.