Firewood is used as a fuel (replacing traditional fuels such as coal, oil and gas, etc.) for industrial and residential burners with static or dynamic recording. Compared with coal, firewood has the following advantages:
- It saves about 20-25% of the cost of burning (because the price of firewood is cheaper than the price of coal and very little ash after burning).
- The fire does not release toxic gas.
- Reduction of labor costs due to less ash should not take ash out of the furnace, and also do not take up the furnace because the time of the furnace is very fast.
- Do not waste heat when putting the ash out of the incinerator. When burning coal, the amount of coal slag is quite high, as the slag from the furnace often contains unburned coal, which results in an estimated 25% of the calorific value of the furnace.