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Zone Valve Failure: What to Look Out For

Boiler zone valves are a crucial part of many boiler systems, but many homeowners are actually unaware of what to look for if one might have failed. 

Boiler zone valves are a crucial part of many boiler systems, but many homeowners are actually unaware of what to look for if one might have failed.

Understanding how to spot zone valve failure is key for keeping your heating system intact and preventing expensive boiler repairs in the long run. 

What is a boiler zone valve?

A boiler zone valve is a device that controls the flow of water and steam in a boiler to specific ‘zones’ of a building.

1. The boiler zone valve works by opening and closing to allow hot water to flow to different parts of your home:

2. When the thermostat drops to a certain temperature the valve opens, allowing hot water to flow to the radiator tubes.

3. When the room is warm enough, the zone valve closes and stops the flow of water.


How do you know if your boiler zone valve is faulty?

If your room doesn’t seem to be heating efficiently, this could be due to a faulty boiler zone valve.

There are a few signs to look for to establish whether your boiler zone valve is faulty, including:

  • No heat - The most obvious sign of a faulty or broken zone valve is that the room won’t heat up at all. If your room is not heating up, despite the thermostat being at a certain temperature, this could be a sign that the zone valve is failing to open correctly.
  • Uneven heating - You may also notice that some areas in your home feel warmer than others. Zone valves can get stuck in an open position, just as they can in a closed position. This can cause too much hot water through, causing one room to be much warmer than others.
  • Leaking valves - Damaged zone valves can sometimes leak. These leaks are often challenging to repair and you may be better off getting the whole boiler zone valve replaced.
  • Banging or hammering - Changes in pressure can cause boiler zone valves to make loud banging and hammering sounds when you turn the thermostat on or off. The heating system may still work, but ignoring the noise can cause a risk of leaking.


What to do if your boiler one valve fails

If you think one of your boiler valves has failed, the best thing to do is call a specialist heating engineer. Problems with heating elements can quickly escalate to other issues, which is why it is always best to get it fixed sooner rather than later.

The issue may not even be related to the boiler zone valve, and you may in fact have issues relating to your thermostat. This is again another reason why it is best to get an expert option on the issue.

Boiler zone valve repair

At Lacey Plumbing & Heating, we have years of experience helping homeowners with their boiler care needs, including boiler zone valve repair and replacement and you can experience expert solution focused plumbing and heating services tailored to your needs.

If you think your boiler zone valve is faulty or needs to be replaced, get in touch with our professional and friendly team today to find out more.

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Do Nest Thermostats Work with a Combi Boiler?

Nest thermostats are the perfect smart thermostats for modern homes and busy lives thanks to its learning capabilities that can reduce energy consumption and cut costs. 

Nest thermostats are the perfect smart thermostats for modern homes and busy lives thanks to its learning capabilities that can reduce energy consumption and cut costs.

However, Nest is not always compatible with every boiler, which is why it is important to find out its compatibility first before you invest in the product. 

Two men reading a boiler handbook


Can you use a Nest thermostat with a combi boiler?

Yes, Nest thermostats can be used with combi boilers. They are becoming a popular smart thermostat choice across the UK not only thanks to how they are to use, but how easy they are to install too by a professional heating engineer or electrician.

The Nest thermostat uses a clever heat link which controls the boiler to communicate wirelessly with the thermostat. 

Do all smart thermostats work with combi boilers?

No, not all smart thermostats will work with combi boilers. However, a lot of popular smart thermostats do work with modern boilers, including combi boilers.

There are a few factors affecting the compatibility between thermostats and combi boilers, including:

  • The voltage of the boiler
  • The boiler manufacturer
  • If the thermostat needs additional components
  • The age of the boiler


Pros and cons of connecting a Nest thermostat to your boiler

Before you invest in a Nest thermostat, it’s worth considering the pros and cons.

Pros of connecting a Nest thermostat to your boiler 


Energy efficiency

One of the biggest benefits of connecting a Nest thermostat to your boiler is its capacity to save energy. The device gains an understanding of your heating preferences and modifies the temperature where necessary to maximise heating cycles and reduce energy use.

Learning capabilities

The Nest thermostat is different to many regular thermostats due to its ability to learn. It can precisely predict your preferences and analyse your temperature changes over time by using its sophisticated algorithms. 

Remote access and control

The Nest thermostat allows you to easily control your home's heating through your mobile phone. This means, no matter where you are, you can easily turn on your heating or regulate the temperature. This means you don’t need to be at home to manually turn on your heating or wait for the thermostat to trigger your boiler.

Cons of connecting a Nest thermostat to your boiler 


Upfront cost

The Nest thermostat is more expensive up front compared to other, more traditional thermostats. Although it can result in long term savings, the initial cost can prevent some from investing in the product.

Compatibility limitations 

As we’ve mentioned, your boiler may not be compatible with the Nest thermostat. Even though it is compatible with most combi boilers, the age and make can determine whether or not you can connect a Nest thermostat with your boiler. 


Some boiler manufacturers are also looking towards making their own smart thermostat, and so their newer models may only work with their own products.

Network limitations

A reliable internet connection is essential for using the Nest thermostat and you cannot access a lot of the features without this since it all works through Wifi connections to the boiler.

Some network connections may not be suitable for using the Nest app either. For example, Nest is not compatible with captive portal networks such as those in cafes and hotels.

Is your boiler compatible with a Nest thermostat?

As we’ve mentioned, the Nest thermostat is compatible with most combi boilers but it is a good idea to check if your boiler is compatible first before you order the device.

Nest have their own compatibility checker, which is a quick and easy to use survey that allows you to see if your boiler is compatible with either their Nest Learning Thermostat or Nest Thermostat E.

Our team of experienced heating engineers will also be able to help you to determine whether or not your boiler is compatible with a Nest thermostat. We have years of experience helping homeowners upgrade their heating systems to have a smarter and more energy efficient home, and we can also advise you on what thermostat may be better suited if your boiler is not compatible with Nest products. 

How to connect a Nest thermostat to a combi boiler

We always recommend having a professional heating engineer to install and connect your Nest thermostat for you. This will help to ensure everything is connected correctly and safely, ready for you to use immediately.

Although the Nest thermostat usually comes with an instruction manual, if you don’t know your way around your boiler and its wiring, you could risk damaging your boiler and the Nest thermostat, as well as potentially causing harm to yourself.

Some of the steps included in connecting a Nest thermostat include:

  • Turning off the mains power
  • Understanding and connecting the wiring from the heat link
  • Connecting the control panel to the heat link
  • Installing the thermostat

If you have bought a Nest thermostat and would like to have it installed for you, or you’re not sure if your boiler is compatible with Nest products, get in touch with our professional team today to find out how we can help you with your smart heating requirements.

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How Do Commercial Boiler Systems Work?

Commercial boilers are sturdy and reliable pieces of heating equipment, supplying heating and hot water to very large commercial properties. However, many people are actually unaware of how they work.

In this guide, we’ll discuss how they work, the basic components and how they differ from domestic boilers.

What is the main difference in how a commercial and domestic boiler operates?

The main difference in how commercial and domestic boilers operate is how powerful they are. Although they both work in the same way, commercial boilers have increased duties in order to cope with being used in a busy commercial environment.

Domestic boilers usually have an output of 10-40kW, whereas commercial boilers tend to have an output of anywhere between 50-150kW in order to keep up with high demands in larger buildings for heating and hot water.

You can find out more about the difference between commercial and domestic boilers in our dedicated guide.

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The basic components of commercial boilers

Listed below are the main components that you can expect to see on a commercial boiler system.

Burner

The burner is the part of the commercial boiler that mixes air with the fuel source and combusts. The hot combustion gases enter the boiler, which is used as a heat exchanger.

The right amount of combustion air is vital for clean and efficient combustion, which is why it is essential the burner is kept in good working condition.

Combustion chamber

The combustion chamber is where the fuel is burned to heat the water. The chamber is where the burner is located and is designed to be a very safe space for high-temperature combustion. It is usually made from durable materials such as steel or cast-iron.

Heat exchanger

The heat exchanger is the component that transfers heat produced by the burner to the water in the boiler. The heat exchanger is made up of several elements including bundles of steel tubes, cast iron and copper lines.

The elements are again made of strong and durable materials to withstand high temperatures and transfer the heat efficiently.

Heat exchanger

The controls on a commercial boiler allow the water temperature to be set to a specific temperature, as well as the internal pressure, ignition and air and fuel supply.

Without the right controls, high-pressure steam can be incredibly dangerous. Controls help to make sure your commercial boiler is safe by making sure that the internal pressure within doesn’t go too high and the water stays at a safe temperature.

Circulator pump

The circulator pump is what pushes the hot water through the supply lines to radiators and taps. It is also what brings the water back through the return lines.

The circulator pump plays an essential role in a commercial boiler, which is why it is essential that it is well maintained.

Exhaust stack

The exhaust stack, or commonly known as the flue, is designed to safely expel used fuel away from the building’s exterior.

The exhaust stack must be fitted safely and correctly so that dangerous gases, like carbon monoxide, are diverted away from the interior of your commercial environment.

How do commercial boilers work?

Commercial boilers work in the same way as domestic boilers, but just on a large scale.

The commercial boilers are pressurised systems that burn combustible fuel or electricity to heat water that is then distributed around the building for heating and hot water.

Some boilers will use the hot water itself, whereas others may use the steam itself if there is a very high demand for heating, such as in hospitals.

Maintenance of a commercial boiler system

Just like with a domestic boiler, commercial boilers require maintenance to ensure everything is in safe, working order. Boilers must be cleaned to prevent any breakdowns and therefore reduce downtime. They should also be checked for any leaks, as they can be extremely dangerous, causing injuries or damage to the property.

Maintenance ensures your commercial boiler is running exactly how it should be. Our team at Lacey Plumbing & Heating knows how important this is, which is why our heating experts offer reliable commercial boiler servicing and maintenance.

With our trusted team, you can experience complete confidence and peace of mind with our high-quality solutions for your plumbing and heating requirements, including servicing your commercial boiler. Get in touch today to find out more.

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Types of Commercial Boiler Systems

If you own a commercial building, you will know how important it is to have a commercial boiler that can meet the demands of your business.

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At Lacey Plumbing & Heating, we can help you choose the right commercial boiler for your business, helping you to reduce your energy bills while meeting high demands for hot water and heating.

 

What boilers are used for commercial buildings?

Commercial buildings use commercial boilers. Generally, they are larger and more powerful compared to residential boilers and are usually made up of large and complex pipework to ensure the whole building receives heating and hot water on demand. 

 

There are a few different types of commercial boilers that are used in commercial buildings, depending on the needs of the business and how much space there is for the boiler to be installed. 

 

What classes as a commercial boiler?

Boilers classed as ‘commercial’ are based on their size and where they are installed. 

Commercial boilers are usually rated about 70kW and are fitted with gas pipework with a diameter of 35mm and above. They are mostly installed in commercial and non-domestic properties such as shops, offices, hospitals and schools.

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Types of commercial boilers

Commercial boilers vary in size, intensity and type of heat source, meaning it can be quite difficult to determine which commercial boiler is right for your property. 

 

Listed below are some of the most common types of commercial boilers you can expect to see in commercial properties:

  • Condensing boiler These are the most energy efficient type of boiler since they capture excess heat that would otherwise escape through the flue. This makes them very cost effective and a great choice for commercial settings where reducing costs is a priority.

  • Modular boilers – These types of boilers are designed to adapt to variable heating needs. Modular boilers offer great efficiency because only the necessary amount of heat is produced, reducing wastage.

  • Electric boilersThese boilers are useful for commercial buildings where gas supply is limited. They are easy to install but aren’t as energy efficient as other types of boilers.

  • Combat heaters – These are usually at high level and give off warm air. They are run on gas.

  • Firetube boilers – These types of boilers are suitable for larger commercial buildings since they produce a large amount of steam and have a long lifespan.

  • Watertube boilers – These boilers are also ideal for large commercial buildings and industrial environments. They produce steam at high pressure and are usually fitted in commercial properties like hospitals where large amounts of steam are necessary. 

How efficient are commercial heating systems?

 

The efficiency of commercial heating systems really depends on the type of system you choose to have installed and how often it is used. By law, commercial boilers must have a minimum efficiency rating of 81-88%, regardless of what type of heating system you have.

A new, energy efficient commercial boiler will help businesses to make significant financial savings in the long run. As long as they are well maintained, a commercial boiler can also last for around 10 to 15 years

How to choose a commercial boiler for your business’s needs 

If you’re not sure what commercial boiler would be best for your business, our team at Lacey Plumbing & Heating can help you. 

 

We will take the time to understand what kind of property you have and how in demand your boiler will be. We can also assess your current heating system to establish how efficient it is and if you would benefit from a new, modern boiler with our commercial boiler installation services. 

Get in touch today to experience complete confidence and peace of mind with our high-quality solutions for your plumbing and heating requirements

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Standard Service vs a Strip Down Boiler Service

Boiler servicing is an essential part of owning a boiler. However, did you know that your boiler should have a thorough, deep clean every 5 years? This is what is called a strip down boiler service.

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At Lacey Plumbing & Heating, you can experience complete confidence and peace of mind with both our expert standard boiler services and strip down boiler services.

What is a strip down boiler service?

A strip down boiler service is essentially a full overhaul of your boiler where everything is checked. As your boiler ages, sediment builds up over time which can affect how your boiler functions and reduce its efficiency. 

 

The service involves thoroughly cleaning the internal components and ensuring each part is working to its optimal performance. 

 

What is a standard boiler service?

A standard boiler service is a yearly visual inspection conducted by a qualified engineer to check your boiler is working safely and efficiently. 

 

Generally speaking, a strip down boiler service is more intrusive than a standard boiler service. During an annual service, the main elements that will be reviewed are the system controls, C02 levels, pressure fans and the gas valve. 

 

Does a strip down boiler service cost more than a regular service?

Yes, strip down boiler services do cost more than a regular boiler service since it involves more manual labour. It will usually take longer to complete and there are a number of parts, such as electrodes and seals, that need changing in the boiler.

 

Costs for a strip down boiler service can range, but the general cost usually starts from £240 including vat. This will include the cost of the consumables that need changing. These consumable parts are not included in your boiler warranty.

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How often is a strip down boiler service needed?

Most boiler manufacturers and heating engineers will advise having a strip down boiler service every 5 years to help mitigate the natural wear and tear of a boiler. 

 

This helps to ensure your boiler is running smoothly and efficiently, and you also won’t need to worry about any surprise issues during a regular service. 

 

Benefits of a strip down boiler service vs a standard boiler service

There are a number of different benefits that come from having a strip down boiler service instead of just standard boiler services, including:

 

  • Extended boiler lifespan – Removing built-up dirt and debris by deep cleaning the boiler is the best way to prevent wear and tear. This will ultimately help to extend the lifespan of your boiler.

  • Improved efficiency – Cleaning the internal parts allows for better heat transfer, meaning your boiler won’t have to work as hard to produce the same amount of heat. This helps to maximise its efficiency and therefore lower your heating bills.

  • Reduced risk of breakdowns – A strip down boiler service allows heating engineers to identify any minor issues that could become bigger problems down the line. This helps to prevent breakdowns from occurring, saving you from spending on unexpected repair costs.

  • Safer operation – A thorough and deep clean ensures that gas flows properly, helping to minimise the risk of malfunction and potential hazards like carbon monoxide leaks.  

 

Is a full strip down boiler service necessary?

Yes, a full strip down boiler service is necessary, especially for boilers older than 5 years. If you need to call out your manufacturer under warranty, they will always highlight when a strip service is due and may query your warranty if this hasn’t been carried out.

 

Although annual servicing is also essential to keeping your home safe and boiler running smoothly, they do not target components that experience wear and tear like a full strip boiler service does. 

 

At Lacey Plumbing & Heating, we can conduct both full strip down boiler services and standard services. You can also experience complete confidence and peace of mind with our boiler service plans

If you wish to join our boiler service plans, or you think your boiler would benefit from a full strip down boiler service, get in touch with our reliable team today to see how we can help you.

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What Size Commercial Boiler Do I Need?

If you run a business, your premises may have a commercial boiler, but do you actually know what size commercial boiler is best for your commercial property? Our heating engineers explain.

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While most people are aware of what a commercial boiler is, many have limited experience and knowledge about the system sizes their commercial building may need.

 

If you run a business, your premises may have a commercial boiler, but do you actually know what size commercial boiler is best for your commercial property?

What size boiler is classed as commercial?

Boiler size is classified by its output, which is measured in Kw. Any boiler that has an output capacity of 70 Kw or above is classed as a commercial boiler. Domestic boilers however, usually range in size from 24Kw to 42Kw, although they can be higher. 

 

The sizing cut off between domestic and commercial boilers isn’t quite always this straightforward though, with some commercial boilers having an output of less than 70 Kw, such as smaller electric boilers that are suitable for construction sites. 

Commercial boiler size considerations

The right commercial boiler size for your property depends on several factors:

  • Building size – The square footage and volume of your commercial property is the primary determining factor when it comes to boiler size. Larger buildings will require more substantial boilers to meet heating and hot water demands.

  • Climate zone – Buildings in colder climates, such as in the UK, will often require more powerful boilers to keep up with the demands during the winter months.

  • Occupancy and usage – The number of occupants and the type of activities in the building will influence what boiler size is needed. For example, a restaurant will likely have a greater need for a larger boiler than an office.

  • Hot water needs – If your commercial property requires a lot of hot water, this should be considered when looking at the boiler size. 
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What size boiler do you need for your commercial building?

Selecting the right size commercial boiler for your commercial building requires careful consideration of several key factors. 

 

The general rule of thumb for finding the right commercial boiler for your building is to allow 50 – 60 watts of heat output per square metre or 5 – 6 watts per square foot of space being heated.

 

Your boiler also needs to be an adequate size to handle your heating and hot water requirements, but it also needs to be as efficient as possible to help keep your energy bills down. 

 

Often, when an old commercial boiler is being replaced, the selection process of a new boiler is relatively straightforward. For new buildings, it can be a bit more complex since the space will need to be fully evaluated before choosing the correct size. However, when you work with our heating engineers at Lacey Plumbing & Heating, we will provide advice and guidance to ensure your boiler is as efficient and effective for your space as possible. 

 

How do heating engineers size a commercial heating system?

To establish the right size boiler for your commercial building, your heating engineer will measure the full square footage of the property. From here, they will calculate what size commercial boiler would be best for you based on your property size. 

 

They will also take other factors into account such as:

 

  • Your overall heating needs
  • Which boiler fuel would be best suited to your property (gas, electric, etc.)
  • Where the boiler will be located 
  • If there is sufficient ventilation 
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Understanding Combi Boiler Flow Rates

In general, the more bathrooms and showers you have, the greater the flow rate you’ll need. Our heating engineers talk you through combi boiler flow rates and what they mean.

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Most combi boilers are suited to homes with one or two bathrooms and they can usually meet these hot water demands. 

 

However, if your combi boiler has low mains water pressure, your combi boiler may not be able to deliver the high flow rates you’re looking for. 

 

Key Points:

 

  • A good flow rate on a combi boiler should be between 12-15 litres per minute

  • Having a boiler flow rate higher than your mains supply flow rate can result in wasted money

  • Installing a pump into your mains supply can help to increase your boilers flow rate 

 

What is boiler flow rate?

Boiler flow rate is the volume of hot water that passes through a boiler every minute and it is usually measured in litres per minute (L/min). In general, the more bathrooms and showers you have, the greater the flow rate you’ll need. 

 

However, it isn’t that simple. The amount of water that can flow through your boiler is dictated by the volume of water supplied from your mains, also known as the mains supply flow rate. So when you install a new boiler, you need to ensure it has a flow rate that matches the mains supply flow rate. 

What should the flow rate be on a combi boiler?

The ideal flow rate for a combi boiler should be between 12 to 15 L/min. Anything below 10 L/min is considered a low flow rate and will not provide sufficient water pressure in your home. 

 

Choosing a combi boiler with a good flow rate will help you to optimise hot water pressure in your home. However, it is important not to choose a boiler with a higher flow rate than the mains flow rate, as you will be wasting money since the boiler won’t reach its full potential.  

How important is the flow rate on a combi boiler?

Understanding the flow rate of your boiler is essential for helping you understand the speed in which hot water can be provided to your taps and showers. 

 

The more taps and showers you have in your home, the higher the combi boiler flow rate you’ll need, especially if they are frequently used at the same time. For properties with two or more bathrooms, it is essential to opt for a boiler with a higher flow rate since it will be halved, for example, if two showers are in use at the same time. 

 

Can you save money with lower or higher boiler flow rates?

When your combi boiler is installed, the flow temperature is usually set to around 70-80°C. This is normally too high for most combi boilers to run at maximum efficiency. 

 

Lower flow rate temperatures result in a more efficient combi boiler since it uses less gas to heat your home to the same temperature, therefore saving you money. 

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How to measure your boiler flow rate

Measuring your boiler flow rate is super simple and you will only need two pieces of equipment: a stopwatch (a mobile phone will be sufficient) and a measuring jug. 

 

Start by placing the jug under the cold tap in your bathroom and turn it on, allowing the water to run for exactly six seconds. Now take the volume of water in the jug in litres and multiply it by 10. For example, 0.10 litres x 10 = 10 litres per minute. 

 

Anything below 10 litres is usually considered low pressure and so you should ideally be looking for a reading between 10-15 L/min. 

 

If you are planning on changing your boiler, you should establish your mains flow rate and then find a combi boiler with a compatible flow rate. 

Can you increase your boiler flow rate?

Yes, you can increase your boiler’s flow rate and one of the easiest ways to do so is by installing a pump into your mains supply. This will help to boost the water pressure coming in from the mains, however, you will still need to ensure you have an adequate supply of water since the pumps are only designed to push water. 

 

There are also specific laws in place that limit pumps to 12 L/min to protect the mains infrastructure. However, this may not be enough for some homes considering some showers use as much as 9-15 L/min. 

 

For homes that need a flow rate higher than 12 L/min, a break tank can be installed to provide a reservoir of water. The pump can then be installed to supply water at a higher flow rate. 

If you don’t think your boiler has a high enough flow rate for your home and you’d like to have a pump installed, contact our team today to find out how we can help you increase your boiler’s flow rate.

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How to Remove Air from a Combi Boiler

Combi boilers are relatively simple to use and look after, but what do you do if air becomes trapped in your boiler? This is known as an airlock, but thankfully they are relatively easy to deal with.

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Combi boilers are relatively simple to use and look after, but what do you do if air becomes trapped in your boiler?

 

This is known as an airlock, but thankfully they are relatively easy to deal with and you won’t need to worry about forking out for a new boiler. 

 

What is boiler airlock?

A boiler airlock refers to when there is air trapped within the boiler in a singular location. 

 

Airlocks can cut off a consistent water supply and stop the flow of water to specific areas of your central heating system. 

 

What happens if air is trapped in a combi boiler?

 

If left untreated, airlocks can cause damage to a boiler and other components, such as the pump and pressure gauge. 

 

It’s vital that you have a heating engineer examine your boiler as soon as possible, otherwise the airlock may cause your boiler to not work at all. 

 

How to detect boiler airlock

When air is trapped in a combi boiler, you may notice a few different signs that something isn’t quite right. These potential signs include:

 

  • No hot water from taps and showers
  • Spluttering or inconsistent flow from taps
  • Cold spots on radiators that are usually fine 
  • Tapping and banging sounds 
  • Lower than normal boiler pressure

 

If you notice one or more of these issues present, there is a strong likelihood that there are one or more airlocks in your combi boiler. 

 

Will an airlock in a boiler clear itself?

It is quite rare for an airlock in a boiler to clear itself, so it is essential that the issue is addressed as soon as possible. If it goes untreated, airlocks can cause serious damage to your boiler. 

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How to get rid of air from a combi boiler

There are two main ways to get rid of an airlock from your combi boiler. 

 

Bleed your radiators

The first way to get rid of an airlock is by bleeding your radiators. This is best done by a professional heating engineer, as it can get messy and risky, but if you want a go yourself, the steps are below.

 

Before you start bleeding your radiators, you should always turn your boiler off as it is essential that the heat pump is not running. 

 

Once your boiler is turned off, you can then move onto the following steps:

  1. Prepare the area – Lay a few dry towels beneath the radiator you’re working on to catch any water. Make sure to keep your bleed key and any additional tools handy too.

  2. Locate the bleed valve – Once your boiler is turned off and the system has cooled down, locate the bleed valve. This is typically found at the top of the radiator.

  3. Open the valve – Insert the radiator bleed key into the valve and turn it slowly to release the trapped air. If you hear a hissing noise, this is the air escaping from the system.

  4. Close the valve – Once the hissing sound stops and water begins to flow from the valve, close it by turning the key clockwise. Once complete, check and adjust the boiler pressure is necessary and refill the system. 

 

The garden hose method 

Another method you can use to get rid of an airlock is by using the garden hose method. You will need an outdoor tap and a suitable length hosepipe. 

  1. Prepare the pipework – Turn off the mains water supply and locate the stopcock valve. This can usually be found by the kitchen sink. Next, open all the hot water taps in your home to drain the system.

  2. Connect the hose – Attach one end of the garden hose to the outdoor tap and the other to the lowest hot water tap in your home – this may be in a downstairs bathroom or the kitchen. Securly fasten both ends with duct tape.

  3. Force water through the pipes – Turn on the outdoor tap, allowing water to flow through the hose and back into the water system. The pressure from the hose will dislodge any trapped air and hopefully clear the airlock.

  4. Drain and disconnect – Once the airlock has been cleared, turn off the outdoor tap and disconnect the hose. Next, turn back on your main water supply to refill the hot water system. Don’t forget to reopen the stopcock, close all the hot water taps and check the boiler pressure. 

If you don’t have any success with either of the methods above, or you simply don’t feel comfortable doing it yourself, get in touch with our team at Lacey Plumbing & Heating and we will be more than happy to help you remove the airlock.

 

How to prevent airlocks in a combi boiler

Regular maintenance and servicing is the best way to ensure your combi boiler doesn’t suffer from any more airlocks. 

 

We always recommend having your boiler serviced once a year to ensure that there is no build-up in the system that could cause airlocks. We offer cost-effective boiler service plans to ensure you always have an engineer handy for your plumbing and heating needs. 

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Eton Hill Road, Radcliffe, M26 2ZS

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How Often Should a Combi Boiler Be Serviced?

Boiler servicing may seem like another expense, but it is essential for keeping you and your family safe whilst ensuring your boiler is working as efficiently as possible.

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Key Points:

 

  • Many manufacturers will require you to have your boiler serviced once a year to keep the warranty valid

  • Professional boiler servicing is essential for optimum boiler performance and safety

  • Homeowners are advised to have their boilers serviced annually, whereas landlords must comply with legal boiler servicing requirements

What happens if you don’t have your boiler serviced often?

 

If you don’t have your boiler serviced, you run the risk of potential issues being missed, which you may not be able to have repaired through your insurance. This is because many insurance providers will require you to prove that you have regularly serviced the boiler. 

 

Other risks of not servicing your boiler can include:

 

  • Costly energy bills 
  • Expensive boiler repairs
  • You may lose your warranty
  • Potential carbon monoxide issues

While it may not be a legal requirement to have a domestic boiler serviced annually, it is a legal requirement for landlords to provide a safe environment for their tenants and so annual servicing and gas safety checks must be carried out every year.

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How often should a combi boiler be serviced?

It doesn’t matter what kind of boiler you have in your home, it should be serviced once a year, and this includes combi boilers. 

 

An annual service involves qualified heating engineers looking over the boiler unit and making sure it is running as efficiently as it should be. Not only does this help to ensure you’re safe, but it also gives you peace of mind knowing your system is working exactly how it should be. 

We have our own boiler serving plans, which is great for those who want the peace of mind knowing they always have an annual service booked in.

 

When should a combi boiler service be carried out?

There is no definitive answer for when your combi boiler should be serviced, as long as it is serviced every 12 months. 

 

While it can be serviced any time of year, it is generally a good idea to have it serviced during the summer months so you know it will be in full working condition when you need it, which will be the colder winter months. 

 

You may also find it will be easier to book in for a service during the summer months since many engineers will be busy in the winter months with emergency boiler breakdowns

Who can service a combi boiler?

Your combi boiler should only ever be serviced by a qualified heating engineer. 

 

All of our heating engineers at Lacey Plumbing & Heating are Gas Safe registered and will be able to help you with a range of boiler issues, including:

 

Why is boiler servicing important?

The main purpose of boiler servicing is to ensure that the boiler is running safely and efficiently, as well as to identify potential boiler issues as early as possible. 

 

  • Inspect the boiler’s efficiency – Engineers will ensure that your boiler is working efficiently, which helps to ensure it is not using energy excessively. This helps to keep your energy bills low and as accurate to your consumption as possible

 

  • Identifying issues early on – Regular boiler servicing is essential for ensuring your boiler is running without any issues. Our certified heating engineers will thoroughly inspect your boiler to identify any issues

 

  • Protect your household and boiler warranty – Ensuring your family are safe is one of the main priorities in boiler servicing. It also helps to ensure that you will maintain your boilers warranty.
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Eton Hill Road, Radcliffe, M26 2ZS

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Mon – Fri 8am – 5pm

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0161 879 4949
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How Often Should a Commercial Boiler be Serviced?

If you are a commercial property owner, you’ll know how important it is to have your commercial boiler serviced and kept in good running condition. But how often do you really need to get your commercial boiler serviced?

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In this guide, we’ll discuss how often your commercial boiler needs to be serviced and how you can stay legally compliant. 

 

What is the lifespan of a commercial boiler?

The lifespan of a commercial boiler is usually around 15 years. However, as with any kind of machinery, there are several factors that come into play with how long your commercial boiler will last, such as:

 

  • How often your commercial boiler is serviced
  • If your commercial boiler was correctly installed 
  • The type of commercial boiler you have
  • If your commercial boiler is the right size or correct type of boiler for your property

What is commercial boiler servicing?

Commercial boiler servicing is the comprehensive examination of your commercial boiler, including both the inside and outside components. The purpose of this is to ensure everything is working as efficiently and safely as possible. 

 

When one of our Gas Safe plumbers and heating engineers arrive from our Lacey Plumbing & Heating team, they will thoroughly inspect every part of your commercial boiler, from the pipework to things tucked away inside like the heat exchanger. 

 

Our team is highly experienced and we always put the safety of yourself, your staff and any visitors first by ensuring your boiler is safe to use and running efficiently.

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Is it a legal requirement to have your boiler serviced?

As a landlord or commercial property owner, it is your legal obligation to ensure your commercial boiler is serviced at least once a year. 

 

Not only is this to ensure everyone who visits or works in the property is kept safe, it is also to make sure if an accident were to happen, you’d be able to prove to your insurance company that you are legally compliant.

 

Commercial property owners who don’t comply with Gas Safety Regulations and fail to have their boiler serviced in the UK can face criminal charges. 

 

These charges can include the following 

 

  • A fixed penalty notice 
  • Termination of your business contract 
  • Potential prison sentences if someone is injured due to non-compliance

Who can service a commercial boiler?

Your commercial boiler will need to be serviced by a Gas Safe engineer in order to be compliant with the law. 

 

All of our engineers at Lacey Plumbing & Heating are Gas Safe Registered and will always provide you with a statutory Gas Safe Certificate once your commercial boiler servicing is complete. You will need this certificate to prove your boiler has been checked by one of our expert team members and is operating safely.

How often should a commercial boiler be serviced?

Ideally, your commercial boiler should be serviced at least once a year. Commercial boilers can be especially susceptible to wear and tear due to their heavy usage on a daily basis. 

 

At Lacey Plumbing & Heating, we can create servicing plans to suit your businesses specific needs. After initially servicing your commercial boiler, we can suggest custom servicing time frames to meet the needs of your boiler. 

 

For example, if you have a boiler that is older than 10 years, or it has a particularly high usage, we may suggest a bi-annual service plan to ensure all the parts keep working as they should be. 

 

Signs that a commercial boiler needs a service

There are a few common warning signs that your commercial boiler needs servicing, and it’s a good idea to be aware of them so you know what to look out for. 

 

Unusual noises 

Your commercial boiler should run relatively quietly, so any unusual noises can signal potential issues that may require maintenance or repairs. 

 

Some common noises are:

 

  • Banging or knocking 
  • Whistling 
  • Gurgling 

Inconsistent temperatures 

When your boiler doesn’t produce sufficient heat or struggles to maintain a consistent temperature, it could be a sign that it requires maintenance or repairs. 

 

Some possible causes for inconsistent temperatures include:

 

  • Low water pressure 
  • Limescale buildup
  • Damaged or worn out components
Plumbing tools

Visible leaks 

Leaking and/or pooling water around your commercial boiler is not a good sign and it indicates that repairs are necessary. 

 

Some potential causes of leaks include:

 

  • Damaged seals
  • Corrosion 
  • Cracks in the heat exchanger

Poor efficiency 

If you notice a sudden or gradual increase in your energy consumption, it may be a sign that your commercial boiler system requires maintenance. 

 

What is the best time of year for a commercial boiler service?

 

The best time of year to have your commercial boiler serviced is in the months leading up to winter, such as August and September. This is because it is vital your boiler is ready for the cold months in which it will be in higher demand. 

 

Our specialist team can ensure any problems with your commercial boiler are fixed before the colder months begin, meaning you will be ready for an increase in usage. 

 

Although it is beneficial to have your boiler serviced in the summer months, it’s important that you are also prepared if an emergency occurs during the winter. 

Our team can provide commercial boiler repairs all year round, meaning you are covered through every season, no matter what the issue is.

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Unit 11 Eton Business Park

Eton Hill Road, Radcliffe, M26 2ZS

Opening Times

Mon – Fri 8am – 5pm

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0161 879 4949
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