Band 6+: The following diagrams show a pellet stove and a pellet boiler to work to heat a house. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The provided diagrams depict how a house heated using a pellet stove and a pellet boiler.

Overall, the first stage is putting wood pellets in a fuel hopper, which will produce hot air thanks to a combustion chamber and a fuel feed. Moreover, produced hot air is transformed to a hot water and moving throughout a house, whereas exhaust gases are moving through a smoke stack and an exhaust duct.

First of all, a fuel hopper comprising wood pellets conveys it to a fuel feed using one of the controls. Afterwards, wood pellets are heated in the combustion chamber creating a hot air, meanwhile remained part has fallen to an ash pan. Then, after the combustion chamber stage, hot air is been transmitted using the combustion fan.

Initially, cold water moves through the stack until it connects with the combustion fan, that produces heated air. Air heats water, which is then became a hot water, which is useful for house stacks. Additionally, gases produced are extruding from rear panel and exiting the smoke stack, whereas remained particles of an ash are conversed in an ash receptacle.