The cost of producing the same heat varies greatly from fuel to fuel. This tool calculates the hourly and annual cost of each fuel, the cost of 1 kWh of heat, with the current fuel prices you enter, and shows the most economical fuel. Only the fuels whose prices you enter are compared.
How is it calculated?
Typical system efficiency is used for each fuel (natural gas 92%, imported coal 82%, lignite 78%, fuel oil 88%, diesel 90%, LPG 92%, pellet 85%, electricity 99%). You can change these efficiencies in the “Advanced settings” section.
When interpreting the result
Fuel cost is not the only criterion: the initial investment and operating needs of solid fuel systems are different. In plants with continuous and high heat consumption, the low cost of solid fuel usually covers the difference in investment in a short time. For details, you can refer to our guides on natural gas boilers and coal-fired boilers.