Fuel produce a

But of course there are differences between boilers, especially when it comes to boilers working on solid fuel, and boilers that can work on liquid or gaseous fuel. Different types of fuel produce a different amount of energy, which helps the boiler function at the proper level. If we talk about solid fuel, like wood, coal, or modern more environmental types of solid fuel, then they are less effective for many reasons compared to natural gas. But often there is simply no other type of fuel in the region where a solid fuel boiler for heating the house is used, therefore, you have to go to some concessions to the imperfection of this type of boilers. It should be noted that solid fuel burns longer, but this happens due to a large number of different impurities that are in the fuel substance.