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

gets burnt in a combustion chamber.

This

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

as well as

ashes to be made and collected in an

ash

pan and

lastly

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

However

, 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

receptacle is

also

present to accumulate the

ash

produced, which serves a similar function to the

ash

pan in a pellet stove,

as well as

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