The following diagrams show how a pellet stove and a pellet boiler work to heat a house. Summerize the information by selecting and reporting the main features, and make comparisions where relevant.

Both diagrams below serve the function of heating up a house with a few key differences. In both diagrams, wood pellets are used as a source of fuel. In a pellet stove, the wood pellets are fed into a fuel hopper where it

then

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gets burnt in a combustion chamber.

This

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causes hot air to be produced which leaves via a combustion fan

as well as

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ashes to be made and collected in an

ash

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pan and

lastly

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, waste gases to leave through an exhaust duct located in the rear panel.

However

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, when it comes to a pellet boiler, cold water is pumped into a furnace, simultaneously as the wood pellets are being burnt causing the cold water to heat up and travel in pipes throughout the house, reaching radiators located in various rooms. An

ash

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receptacle is

also

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present to accumulate the

ash

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produced, which serves a similar function to the

ash

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pan in a pellet stove,

as well as

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the presence of a smoke stack as an outlet for the gasses evolved to exit during the process.