You should spend about 20 minutes on this task.
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.
Write at least 150 words.
Get your personalised IELTS Essay Feedback from a former examiner
Download IELTS eBooks, get everything you need to achieve a high band score
Model Answer 1
The diagram elucidates the mechanism of a central heating system installed within a residential setting. It meticulously outlines the journey of water from its entry as a cold resource to its exit as a means of warmth throughout the home.
At the outset, the system's core elements are distinct: a storage tank, boiler, and network of radiators. These components interlink to create a continuous loop of heating efficiency. The storage tank acts as the repository and regulator of the cold water supply, ensuring that the system maintains an optimal level of fluid. The presence of an overflow pipe is a strategic safeguard against overfilling, averting potential water waste and structural damage.
Delving deeper, the water embarks on its thermal voyage through a boiler—operated by either gas or oil - where it is warmed before being propelled by a pump. This heated water is then channeled to the radiators, comprised of small tubes, which facilitate the even distribution of heat. These radiators are strategically positioned to maximize the diffusion of warmth, thereby maintaining the ambient temperature of the domicile.
In essence, the central heating system in a house operates on a cycle of heating and circulation. The water, initially cold, is heated to a high temperature in the boiler, and this hot water is then dispatched to the radiators. Through these radiators, the heat is radiated into the house. Subsequently, the water circulates back to the storage tank to repeat the process, thus ensuring that the house remains a bastion of comfort against the chill. The system's cyclical nature underscores its efficiency, highlighting a harmonious balance between energy consumption and thermal output.
Download IELTS eBooks, get everything you need to achieve a high band score
Model Answer 2
The schematic provided delineates the operational intricacies of a central heating system in a house, highlighting its various components and their interconnections.
An overview of the system reveals two pivotal stages of operation – the input of cold water and its subsequent conversion to heat energy. The storage tank serves as the initial recipient of the cold water supply, equipped with an overflow pipe to manage surplus. The boiler, fueled by gas or oil, is the transformational hub where the water's temperature is elevated before being propelled through the circuit.
The central heating system in a house is a marvel of domestic engineering, integrating a boiler, pump, and an array of radiators to deliver warmth. The cold water enters the storage tank, positioned to ensure gravity-fed supply to the boiler. A safeguarding overflow pipe prevents excess, signifying the system’s self-regulating design.
Upon heating, the water traverses through small tubes within the radiators, disseminating heat uniformly across the home. The judicious placement of these radiators is instrumental in achieving an even temperature distribution. Post-heat delivery, the now-cooled water cycles back to the storage tank, perpetuating the flow of warmth. This recursive process underscores the efficiency of the central heating system in a house, operating in a seamless loop to maintain the household’s thermal comfort.
Download IELTS eBooks, get everything you need to achieve a high band score
Model Answer 3
The illustration delineates the operational framework of a central heating system within a residential setting, highlighting its functional components and their respective roles.
Central to the illustration is the boiler, which serves as the heart of the central heating system in a house. It is here that cold water is heated, courtesy of either gas or oil combustion. The heated water is then propelled by a pump through a network of radiators, thus distributing warmth throughout the dwelling. These radiators facilitate the transfer of heat to the ambient air, thereby maintaining a comfortable indoor atmosphere.
Notably, the system incorporates a storage tank, which ensures a consistent supply of hot water for domestic use. This is achieved through a cyclical process, whereby water, once heated to the pre-determined temperature, ascends to the storage tank. Subsequently, it descends to fulfill household hot water needs, such as for taps. In the event of excess water within the system, an overflow pipe ensures safe redirection.
Furthermore, the central heating system in a house is equipped with a subsidiary water tank designated to replenish the storage tank. This mechanism guarantees an uninterrupted supply, even in instances of service disruptions. This systematic approach to heating not only optimizes energy utilization but also ensures that the home's heating and hot water requirements are met with reliability and efficiency.
Download IELTS eBooks, get everything you need to achieve a high band score
Model Answer 4
The diagram meticulously outlines the mechanics of a central heating system in a house, tracing the journey of water as it is heated and circulated to provide warmth and hot water for household use.
At the crux of the illustration is the central heating system in a house, ingeniously designed to deliver thermal comfort and hot water. The boiler, powered by gas or oil, is the pivot, raising the temperature of the cold water supplied. This heated water is then propelled by a pump through the circuit of radiators, which discreetly line the walls of the home, emanating warmth and ensuring a uniform temperature is maintained.
The system is ingeniously orchestrated, with a storage tank strategically positioned to store hot water, thus ensuring an uninterrupted supply for domestic needs. Overflow mechanisms are in place, safeguarding against excess water by directing it away efficiently. A supplementary water tank stands ready, a contingency to refill the storage tank, ensuring the central heating system in a house remains operational even during external water supply disruptions.
This closed-loop system epitomizes efficiency, with the storage tank also playing a pivotal role in regulating the supply of hot water to the house. It is a well-calibrated cycle, reflecting a balance between energy consumption and the provision of home heating and hot water needs—a testament to modern engineering in domestic settings.
Get your personalised IELTS Essay Feedback from a former examiner
Download IELTS eBooks, get everything you need to achieve a high band score
Comments