IELTS Writing Correction Service
Writing Samples
Band 4.5

The diagram below shows how a central heating system in a house works. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how a central heating system in a house works. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
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T
This
Linking Words
 picture displays the function of a central heating system in a home.
Overall
Linking Words
,
it is clear that
Linking Words
 the main feature
for
Change preposition
of
show examples
 the heater is the
water
Use synonyms
 storage
tank
Use synonyms
, the radiator and the boiler.
This
Linking Words
 hot
water
Use synonyms
tank
Use synonyms
 contains many other things
such
Linking Words
 as
pump
Correct article usage
a pump
show examples
, overflow pipe and the small tubes through which the
water
Use synonyms
 flows .
Firstly
Linking Words
, the liquid from the
tank
Use synonyms
 flows through the pipe and
splitsinto
Correct your spelling
splits into
split into
 two
direction
Change to a plural noun
directions
show examples
. One part of the
water
Use synonyms
 streams to the hot
water
Use synonyms
 taps and the other goes to the storage
tank
Use synonyms
 which
then
Linking Words
 descends towards the boiler. Two pipes
travels
Change the verb form
travel
show examples
 from the boiler where one has a small pump which
trwhich
Correct your spelling
which
 is run by either gas or oil and enters the hot
water
Use synonyms
 radiator through a small pump where the
water
Use synonyms
 is controlled to a cold temperature and the other tube which does not have
pipe
Correct article usage
a pipe
show examples
 connects to each hot
water
Use synonyms
 radiators.

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Introduction: The introduction is missing.
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Introduction: Change the first sentence in the introduction.
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Introduction: The chart intro is missing.
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Basic structure: Change the third paragraph.
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Basic structure: Change the fourth paragraph.
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Basic structure: Change the fifth paragraph.
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Introduction: The chart intro is missing.
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Vocabulary: Replace the words water, tank with synonyms.
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Vocabulary: Only 1 basic words for charts were used.
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Vocabulary: Use several vocabularies to present the data in the first paragraph.
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Vocabulary: Use several vocabularies to present the data in the third paragraph.
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Vocabulary: Use several vocabularies to present the data in the fourth paragraph.
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Vocabulary: Use several vocabularies to present the data in the fifth paragraph.
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Vocabulary: Use several vocabularies to present the data in the sixth paragraph.
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Topic Vocabulary:
  • Central heating system
  • Boiler
  • Radiator
  • Pipes
  • Circulate
  • Heat source
  • Thermostat
  • Convection
  • Combustion
  • Energy-efficient
  • Flow rate
  • Expansion tank
  • Hot water cylinder
  • Insulation
  • Temperature control
  • Pump
  • Valves
  • Heat exchanger
  • Programmable
  • Zoned heating
  • Renewable energy
  • Double glazing
  • Carbon footprint
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