November 16, 2023

Boiler Inspections: Complete Checklist

Feature image

Winters have just started and it’s getting colder with every passing day. Decreasing temperature increases the need for an efficient boiler. But a boiler can only give you the desired comfort if it is well maintained and regularly serviced.

For the colder parts of the world, such as the UK, boilers are amongst the most essential items for homes and commercial entities. Boilers are required to heat your rooms and provide warm water in washrooms and kitchens. Whatever the type of boiler, it needs a certain level of maintenance. It needs regular inspection. It needs timely servicing.

So, you need to know the basic things about a boiler and its maintenance and service schedule. Though it may vary to some extent based on the type of boiler, the basic checklist would almost be the same for every boiler.

So, before we jump onto the boiler inspection checklist, let’s look at different types of boilers and their functionality.

Types of Boilers by Energy Source

Boilers can be classified on different parameters. Let’s see the types of boilers based on the energy source they use to heat the water:

  • Gas Fired Boilers

Gas fired boilers are the most commonly used boilers. They are efficient but at the same time need more care and maintenance as compared to other types of boilers. A gas-fired boiler can be quite useful for homes, business, or commercial purposes. These are often used as part of an integrated heating system in large buildings. Gas fired boilers are best for buildings having central heating systems.

  • Electrical Boilers

These are a popular choice in the areas where gas is unavailable. An electric boiler has a plus point because it requires minimum possible maintenance. But these are less efficient than gas boilers, as they take more time to heat the water. These are, however, considered as the best environment-friendly boilers.

  • Oil Boilers

Normally, this type of boiler uses kerosene oil. These are more popular in remote areas where gas or electricity might not be. But keeping a certain oil storage level makes them quite cumbersome. Additionally, they are a source of environmental pollution due to carbon emissions.

  • Coal Fired Boilers

This type of boiler uses coal or firewood as an energy source. Though once very popular in homes, they have lost their utility as a domestic boiler. Now they are mostly used for industrial projects, where you need to produce steam. But they become quite dangerous sometimes, as they can explode due to high pressure. Additionally, they need more space for their installation, working, and storage of a sufficient supply of coal and firewood.

Categorization of Boilers Based on Heat Exchange System

Boilers are meant to produce hot water. The component of the boiler which makes it happen is known as a heat exchanger. A heat exchanger passes the heat to the water that comes in contact with it, thus heating it. There are two different ways of doing so, used in most boilers.

  • Water Tube Boilers – The heat is produced in the heat chamber, and water passes through it via water tubes. The heat chamber remains filled with hot flue gases. When water passes through these tubes installed in the heat chamber, it gets heated. 
  • Fire Tube Boilers – In this type of boiler, the process is entirely reversed from that of the water tube type. Here the flue gases are in the tubes installed in a shell. Water passes through this shell. Water gets heated when it comes in contact with the fire tubes, which contain hot flue gases.

The water tube boilers are considered more efficient than the fire tube boilers. They are more compact in their build and can produce hot water more efficiently.

Types of Boilers based on functionality

Boilers can also be classified based on their functioning and utility. Mainly there are three types of boilers based on their functioning and utility.

  • Combination or Combi Boilers

Combination boilers are commonly known as Combi Boilers. These boilers are mostly used in the home as they are more efficient than others. They provide heat and hot water simultaneously, so they got the name combination or combi boiler. Another plus point of this type of home boiler is that no separate tank is needed and it can easily be mounted on a wall. That can save a lot of space for some other usage.

They are sometimes called an Instant Boiler, as they start heating the water immediately. The ignition is automatically triggered when you start using the water.

However, the disadvantage of this type of boiler is that it cannot supply hot water to multiple users at a time. So, it is useful for small households only, with a single washroom and a few radiators. Moreover, it cannot generate pressure. The flow of water is entirely dependent on the pressure of inflowing water.

  • Heat-only Boilers

This type of boiler is commonly known as a conventional boiler or regular boiler or Heat-only boiler. 

When the boiler is ignited, the heat exchanger starts heating the water pumped into the storage tank. This heated water is then transported to the radiators to heat the premises. Hot water is also transported to the wash rooms so you get warm water when you switch on the taps.

They are considered less efficient as compared to combi boilers as they cannot provide hot water instantly. It is more costly and needs more space for installation. But it is useful for larger households, with multiple washrooms and more radiators.

  • System Boilers

These are more like a conventional or heat-only boiler. But they don’t have a storage tank. And secondly, various components such as pumps and valves are built-in, unlike the conventional boilers.  System boilers are a part of the integrated heating system, mostly used in large buildings. In fact, system boilers can be referred to as the improved new version of regular boilers.

The low pressure is the main disadvantage of this type of boiler, as they supply the hot water at the same pressure as that of the inflowing water

Frequency of Boiler Inspection

If you have a gas-fired boiler, it will have to be an essential part of the annual gas safety inspection, which is necessary for getting a gas safety certificate. But if you have a different type of boiler, it does not make a part of the annual gas safety inspection.

In any case, you need to get your boiler frequently inspected for identification of any potential fault. While an electrical boiler would potentially need almost no maintenance, a coal-fired or oil boiler may need more frequent maintenance.

However, as a basic rule, you need to have your boiler inspected at least once a year.

Boiler Inspection Checklist

Boiler inspection checklist

Though boilers are meant to work uninterruptedly for the entire winter, there may be instances when it develops various faults. So, to ensure a trouble performance, you need to have a daily, weekly, monthly and annual checklist for an effective boiler inspection and maintenance.

General Inspection

  • Check the boiler room. It should be neat and clean. The boiler body should be clean and so should the burners.
  • Check the electrical connections for their firmness. They should be properly placed under cover.
  • Check the vents. They should be free from any blockage.
  • Regularly inspect the boiler components for any water or gas leakage.

Daily Inspection

  • You need to check the water level and steam pressure on a daily basis. In case of any abnormality, consult a boiler engineer.
  • Often check the working of the auto ignition system of burners to confirm they are working as expected.
  • Check the water cut-off system for low water levels. Clean the blow-down valve and water cutoff system of your boiler by removing any dirt on them.
  • Check the performance of the burner cut-off system. Check it cuts off as per the settings.

Weekly Inspection

  • Weekly inspection invariably includes all the daily inspection steps.
  • Examine the burner linkages for their tightness. If required do tighten them.
  • Check the performance of the low water level cutoff valve. It should shut off the burner when water comes to the lower level.
  • Test the working of the burner shut-off system. Operate it manually to confirm the functioning. You may often need to lubricate it.

Monthly Inspection

  • Daily and weekly inspection steps should be done invariably.
  • Examine the plot assembly. Make sure that the igniter is placed in the center of the igniter body. Clean it to remove any dust or dirt. The wire should be firm. You may need to replace it sometimes.
  • In addition to the above, you may also need to clean the nozzles if you have an oil boiler. Additionally, you also need to check oil filters for their cleanliness. If required, replace them.
  • Consult the user manual for lubrication of motors. Perform this step strictly as per the recommendations of the manufacturers

Annual Inspection

  • For gas-fired boilers, you need to get it inspected by a registered gas safety engineer as part of the annual gas safety inspection.
  • For other types of boilers, hire the services of a qualified boiler engineer for an annual inspection.

Important

  • If any abnormality is observed during daily, weekly or monthly inspections, call the boiler engineer to fix it.
  • Record and store the annual inspection reports/records for future reference.
  • If you don’t use the boiler in summer, you need to properly close the boiler operations at the start of hot weather. It includes closing all the valves manually and turning the burner off.

Conclusion

You need a boiler to provide you with a warm residence and hot water for the winters. But in turn, your boiler needs your attention. It comprises such parts that may develop any fault at any time. To avoid such a situation right in the middle of the peak winter season, you need to ensure regular and timely maintenance and servicing of the boiler.

Additionally, you need to conduct a daily, weekly and monthly set of inspection steps on your boiler. This will help a lot in the trouble-free performance of t

Get An Instant Quote

Fill the required information to order a gas safety certificate instantly.

Popular Posts

October 26, 2023
How Do I Check If I Have A Gas Safety Certificate?

Are you curious about your Gas Safety Certificate? With these simple steps, learn how to check its status and ensure your peace of mind.

November 29, 2022
What Does A Gas Safety Check Involve?

Gas engineers perform a gas safety check to ensure your gas appliances are safe. Read to learn what more you can expect from the gas safety check.

November 9, 2023
Why Is My Boiler Making A Loud Vibrating Noise?

Find out why your boiler is vibrating loudly. Explore causes, troubleshooting tips, and the importance of prompt repairs for a quiet and efficient heating system at home.

August 7, 2023
What Is The Fine For Not Having A Gas Safety Certificate?

Learn about the importance of gas safety certificates for landlords and the legal consequences of not having a valid certificate.

December 19, 2022
What Happens If You Don't Have A Gas Safety Certificate?

Are you a landlord who wants to know what happens if you don't have a gas safety certificate? Then, you need to give our post a read.

May 2, 2024
Tenant Rights In The UK: How Long Can A Landlord Leave You Without Hot Water?

Know your tenant rights: How long can a UK landlord leave you without hot water? Stay informed, assert your rights.

Contact Us

Fill out the following enquiry form and we will contact you as soon as possible.

Verified Service Provided

All of our property professionals are members of the relevant trade accreditation scheme.