How many watts to run a typical oil fired furnace?

A typical oil-fired furnace consumes about 120 to 300 watts while running. However, the actual wattage can vary depending on the furnace's size and efficiency. It's important to note that the initial ignition process may require a higher wattage for a short period, often around 500 to 800 watts. Overall, the average operational consumption remains relatively low compared to electric heating systems.