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 depicts the way in which a central heating system in a house works.

Overall

, there are four stages in order to circulate the

water

for heating purposes, commencing with storing, followed by heating, and

finally

circulating. In the initial stage, cold

water

flows into the house through a pipe.

Subsequently

, it is

then

heatedthen

Correct your spelling

heated then

heat in a boiler (a machine that can be used to raise the

water

temperature) before pumping into the surrounding house. There are two ways to heat the

water

using a gas or an oil fuel. After that, hot

water

flows into radiators that have many small tubes and circulates into all the corners of the building. In the subsequent stage, the hot

water

that has already been used becomes cold and it is afterwards circulated to the storage

tank

. Once the storage

tank

is full, the

water

passes through the

water

tank

by an overflow pipe to collect the overflowing liquid. In the meantime, the

water

in the storage

tank

is

also

used as hot

water

for taps.