Space Heater - Oil heater - Wikipedia

A reveal heater is a device used to heat a single, small area;central heating is used to heat many amalgamated areas, such as the rooms of a house. express heaters are powered by electricity or a burnable fuel, such as natural gas, propane, fuel oil, or wood pellets. Portable tell heaters are usually electric, because a steadfast exhaust is needed for heaters which burn fuel.

Space heaters are powered by electricity or the combustion of flammable fuel. Combustion atmosphere heaters burn flammable fuel, such as natural gas, kerosene, propane, or wood.

Electric express heaters fall into three main categories:

Convection heaters pass electricity through a heating element, causing the element to become hot. The elements are either metal or ceramic, and the process is known as joule heating. Heat is transferred to the freshen in the room by convection. Some heaters have a devotee to lump air circulation, but oil-filled vent heaters attain not have fans.
Infrared heaters in addition to pass electricity through a conductive wire, heating it. Most of the heat is luminous heating, rather than convection. The warm wire emits infrared rays, which transfer heat to a unquestionable surface rather than the surrounding air.
Heat pumps use the same process as refrigerators and freshen conditioners, but in reverse. while convective and infrared heaters make heat from electricity, heat pumps influence the location of heat. Heat pumps influence heat from external a room to inside, warming it. Many are reversible, accomplished to frosty the room by pumping heat out.

Portable space heaters: Money-savers or energy-wasters?