Which appliances use oil as fuel and require combustion air?

Oil-fired appliances utilize oil as a fuel source for combustion, which means they need a supply of combustion air to operate effectively. Combustion air is necessary for the burning process, allowing the oil to combust properly to produce heat.

Oil-fired appliances, like furnaces and boilers, draw in air from the surrounding environment or from a dedicated vent to ensure that there is enough oxygen for the combustion process. Proper combustion air supply is vital for efficient operation and to minimize the production of carbon monoxide and other harmful emissions.

In contrast, gas-fired appliances use gas as a fuel and also require combustion air, but they do not utilize oil. Electric appliances do not rely on combustion at all, as they run on electricity. Solid fuel appliances, which typically burn wood or coal, do also require combustion air for the burning process, but they are distinct from oil-fired appliances. This clarification underscores why oil-fired appliances are the correct choice in this context.