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The following diagrams show how a pellet stove and a pellet boiler work to heat a house. Summarize7 the information by selecting and reporting the main features, and make comparisons where relevant.

The diagrams illustrate the way in which a pellet stove and a pellet boiler function to provide heat to a dwell. Overall, both the pellet stove and the pellet boiler are powered by wood pellets that provide heat to generate respectively hot air and hot water, then conducted inside houses. A pellet stove, shows a more complex mechanism. First of all, the wood pellets is poured inside a fuel hopper in which a control panel is placed (that controls the whole process). Secondly, wood pellets is transported from the fuel hopper into a fuel feed that brings pellets into a combustion chamber that starts to transform pellets into fire useful to provide heat. After combustion starts, ashes coming out from burnt pellets go into an ash pan. Hot air is then conducted outside through a combustion fan, and also an exhaust duct is placed in the rear panel to extrude smoke. On the other hand, a pellet boiler works similarly to a pellet stove. In the first place, wood pellets is burnt inside a furnace to start heating the cold water coming from a tube under the boiler. After combustion happens inside the furnace, ash is collected into a receptacle, and smoke is expelled through a smoke stack over the roof. Finally, hot water is transported from the furnace into the house, heating different rooms thanks to a path that conduces it from the living room downstairs and bedrooms upstair.
The diagrams illustrate the way in which a
You use this word too often, consider replacing it with
pellet
You use this word too often, consider replacing it with
stove
and a
You use this word too often, consider replacing it with
pellet
You use this word too often, consider replacing it with
boiler
function to provide heat to a dwell.

Overall
, both the
You use this word too often, consider replacing it with
pellet
You use this word too often, consider replacing it with
stove
and the
You use this word too often, consider replacing it with
pellet
You use this word too often, consider replacing it with
boiler
are powered
by
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wood
You use this word too often, consider replacing it with
pellets
that provide heat to generate
respectively
hot air and hot water, then conducted
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inside
This phrase/word (depending on the context) can be potentially replaced with :
houses
.

A
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pellet
You use this word too often, consider replacing it with
stove
,
This phrase/word (depending on the context) can be potentially replaced with :
shows
a more complex mechanism.
Often, this adverbial phrase is redundant. Consider using “first”.
First of all
, the
You use this word too often, consider replacing it with
wood
You use this word too often, consider replacing it with
pellets
is poured
You use this word too often, consider replacing it with
inside
a fuel hopper in which a control panel
is placed
(that controls the whole process).
Secondly
,
You use this word too often, consider replacing it with
wood
You use this word too often, consider replacing it with
pellets
It seems that the correct verb form here is “are”.
is
transported from the fuel hopper into a fuel feed that brings
You use this word too often, consider replacing it with
pellets
into a
You use this word too often, consider replacing it with
combustion
chamber that
This phrase/word (depending on the context) can be potentially replaced with :
starts
to transform
You use this word too often, consider replacing it with
pellets
into fire useful to provide heat. After
You use this word too often, consider replacing it with
combustion
This phrase/word (depending on the context) can be potentially replaced with :
starts
, ashes coming out from burnt
You use this word too often, consider replacing it with
pellets
go into an ash pan. Hot air is then conducted outside through a
You use this word too often, consider replacing it with
combustion
fan, and
also
an exhaust duct
is placed
in the rear panel to extrude smoke.

On the other hand
, a
You use this word too often, consider replacing it with
pellet
You use this word too often, consider replacing it with
boiler
works
similarly
to a
You use this word too often, consider replacing it with
pellet
You use this word too often, consider replacing it with
stove
. In the
first
place,
You use this word too often, consider replacing it with
wood
You use this word too often, consider replacing it with
pellets
is burnt
You use this word too often, consider replacing it with
inside
a furnace to
This phrase/word (depending on the context) can be potentially replaced with :
start
heating the
This phrase/word (depending on the context) can be potentially replaced with :
cold
water coming from a tube under the
You use this word too often, consider replacing it with
boiler
. After
You use this word too often, consider replacing it with
combustion
happens
You use this word too often, consider replacing it with
inside
the furnace, ash
is collected
into a receptacle, and smoke
is expelled
through a smoke stack over the roof.
Finally
, hot water
is transported
from the furnace into the
This phrase/word (depending on the context) can be potentially replaced with :
house
, heating
This phrase/word is too simple and can be replaced with:
different
rooms thanks to a path that conduces it from the living room downstairs and bedrooms
Possible spelling mistake found.
upstair
.
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IELTS academic The following diagrams show how a pellet stove and a pellet boiler work to heat a house. Summarize7 the information by selecting and reporting the main features, and make comparisons where relevant.

Academic
  American English
4 paragraphs
240 words
6.0
Overall Band Score
Coherence and Cohesion: 7.0
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
  • ?
    Include an introduction and conclusion
  • ?
    Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • ?
    Vary your linking phrases using synonyms
Lexical Resource: 5.5
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 5.0
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • ?
    Support ideas with relevant, specific examples
Labels Descriptions
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