The diagram below shows how central heating system in a house works.

The diagram illustrates the process for running a domestic central heating system. Overall, there are four stages relatively of processes to ensure a constant flow of hot water before being ready for use in both the radiators and the taps.

Looking for the detail, this process commences when the cold water comes into the house by means of pipes. This cold water is stored at a water storage tank immediately, before it is heated up by boiler, which is fueled by oil and gas. Afterwards, the hot water is pumped round the house through a system of pipes and then is distributed to the radiators, which have a small tube, in four different rooms.

Turning to the next stages, after circulating between radiators heating up the house, the remained water is flown back to the storage tank by passing gas or oil boiler. Finally, this water would be divided into two ways; either is placed to the water tank for any overflow of water in a house or is directed to the taps to provide hot water for the house.

Votes
Average: 9.5 (3 votes)
Essays by the user:

Transition Words or Phrases used:
but, finally, if, look, then

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 11.0 7.0 157% => OK
Auxiliary verbs: 1.0 1.00243902439 100% => OK
Conjunction : 5.0 6.8 74% => OK
Relative clauses : 3.0 3.15609756098 95% => OK
Pronoun: 4.0 5.60731707317 71% => OK
Preposition: 29.0 33.7804878049 86% => OK
Nominalization: 0.0 3.97073170732 0% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 832.0 965.302439024 86% => OK
No of words: 180.0 196.424390244 92% => More content wanted.
Chars per words: 4.62222222222 4.92477711251 94% => OK
Fourth root words length: 3.66284150148 3.73543355544 98% => OK
Word Length SD: 2.37369847378 2.65546596893 89% => OK
Unique words: 102.0 106.607317073 96% => OK
Unique words percentage: 0.566666666667 0.547539520022 103% => OK
syllable_count: 261.0 283.868780488 92% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 1.53170731707 196% => OK
Article: 3.0 4.33902439024 69% => OK
Subordination: 2.0 1.07073170732 187% => OK
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 3.0 3.36585365854 89% => OK

Performance on sentences:
How many sentences: 7.0 8.94146341463 78% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 25.0 22.4926829268 111% => OK
Sentence length SD: 35.1097404939 43.030603864 82% => OK
Chars per sentence: 118.857142857 112.824112599 105% => OK
Words per sentence: 25.7142857143 22.9334400587 112% => OK
Discourse Markers: 4.0 5.23603664747 76% => OK
Paragraphs: 3.0 3.83414634146 78% => More paragraphs wanted.
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
Sentences with neutral sentiment: 6.0 4.09268292683 147% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.117513833043 0.215688989381 54% => OK
Sentence topic coherence: 0.075340781199 0.103423049105 73% => OK
Sentence topic coherence SD: 0.089956605762 0.0843802449381 107% => OK
Paragraph topic coherence: 0.0915853609263 0.15604864568 59% => OK
Paragraph topic coherence SD: 0.0404543320352 0.0819641961636 49% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.

Essay readability:
automated_readability_index: 13.2 13.2329268293 100% => OK
flesch_reading_ease: 63.02 61.2550243902 103% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 10.7 10.3012195122 104% => OK
coleman_liau_index: 9.81 11.4140731707 86% => OK
dale_chall_readability_score: 8.65 8.06136585366 107% => OK
difficult_words: 43.0 40.7170731707 106% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 12.0 10.9970731707 109% => OK
text_standard: 11.0 11.0658536585 99% => OK
What are above readability scores?

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Rates: 84.2696629213 out of 100
Scores by essay e-grader: 7.5 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.