What is the hourly fuel consumption of a diesel heater?
2 Answers
Diesel heater fuel consumption: 2.4-4kg/h. Additional information: Consumption rate: Fuel consumption rate refers to the amount of fuel consumed per hour at a power of one kilowatt, often denoted by BSFC (Brake Specific Fuel Consumption); or it can refer to the fuel consumption per unit of effective work per hour, usually expressed in grams per kilowatt-hour. Unit of measurement: The fuel consumption rate of an engine can be divided into indicated fuel consumption rate and effective fuel consumption rate. The indicated fuel consumption rate refers to the fuel consumption per unit of indicated work, typically expressed in grams per kilowatt-hour of indicated power. The effective fuel consumption rate refers to the fuel consumption per unit of effective work, usually expressed in grams of fuel consumed per kilowatt-hour of effective work.
I found that the hourly fuel consumption of a diesel heater isn't a fixed number—it mainly depends on the device's power rating and how you use it. Generally speaking, a small 1kW heater consumes about 0.1 liters per hour, while a medium 2kW unit may reach 0.2 liters, and high-power outdoor models like those for trucks can go up to 0.4 liters or more. Many factors influence this: cranking up the temperature setting or increasing fan speed will noticeably spike fuel usage, and colder ambient temperatures also demand more fuel to maintain heat. When I used a portable heater during wilderness camping at medium setting, it burned roughly 0.15 liters of diesel hourly—adding up to just a few hundred grams for overnight use. For precise figures, always check the equipment manual or maintain usage logs, as brands like Webasto or Eberspächer show significant variations.
