What is Oil heater?
[[File:Oil Heater 5293.jpg|thumb|right|A typical oil heater]] An '''oil heater''', also known as an '''oil-filled heater''', '''oil-filled radiator''', or '''column heater''', is a form of [[heater]] used in home [[heating]]. Although they are filled with [[oil]], it is electrically heated and does not involve burning any [[fuel|oil]]. ==Function== Oil heaters consist of metal columns that are hollow inside, where heat transfer oil flows freely around the heater. A [[heating element]] at the base of the heater heats the oil, which flow the heater by [[convection]] and then to the area around the heater by [[air convection]] and [[thermal radiation]]. The columns of oil heaters are constructed as thin fins so that the [[surface area]] of the metal columns is large compared to the amount of oil and element which provides the warmth. A large surface area allows more air to be in contact with the heater at any point in time, allowing for the heat to be transferred more effectively. This results in a surface temperature that is safe enough to touch. The heating level is controlled by a [[thermostat]]. ==Efficiency== Oil heaters cost more to run and provide far less heating than [[gas heater]]s, they are still used in bedrooms and other small-to-medium-sized enclosed areas. This is because gas heaters, especially without a [[flue]], are not suitable for bedroom use. Gas heaters cannot be used in confined spaces due to the reduced [[oxygen]], and the emissions produced. This leaves electrically powered heaters, such as oil heaters, [[fan heater]]s, and [[heat pump]]s, as the only alternatives. <ref>{{cite web |title=Gas Heater vs Oil Heater: Top Pros and Cons {{!}} Home Air Guides |url=https://homeairguides.com/gas-heater-vs-oil-heater/ |website=homeairguides.com |accessdate=27 May 2023 |date=14 December 2020 |archive-date=27 May 2023 |archive-url=https://web.archive.org/web/20230527135944/https://homeairguides.com/gas-heater-vs-oil-heater/ |url-status=dead }}</ref> ==References== {{reflist}} {{HVAC}} {{Home applia