Does Your Home Have A Combination Boiler?

A combination or combi boiler is by far the most popular type of boiler in the UK with over half of all households having one. They heat hot water for your taps, shower and radiators directly from your mains water supply. Therefore, you have no need to install a cylinder or a cold water storage tank in the loft. Combi boilers are perfect for flats with no space for a cylinder or storage tank as well as bungalows and small homes where space is at a premium.

You’re probably looking for more information about combination boilers. Please click an item below to find out more.

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Combination boilers are highly energy-efficient ways of providing hot water and heating for your home within one compact unit. Combi boilers provide you with heated water for your radiators and hot water for your showers without the need for a separate water cylinder, storage tank or water pump. With a combination boiler, your home is supplied with an unlimited quantity of hot water at mains pressure, day and night.
Our qualified plumbers can repair or install the perfect combination boiler for your home. If you live in a flat or a small home, we can give you the no-obligation advice you need before deciding whether you want a new, high-efficiency combination boiler or want to improve your existing central heating system. Combi boilers are the ideal solution for homes with a high mains water pressure where there is little chance that more than one person will be using hot water at a time. Combi boilers are quicker and cheaper to install than a regular or system boiler as there is no need to install the pipe work to a separate cylinder or storage tank.
Combi boilers are highly energy efficient but aren’t suitable for homes with low mains water pressure as they have no water pump. Homes with more than one bathroom are unlikely to find combi boilers beneficial as water temperature and pressure will drop when hot water is required in more than one room at a time. Homes with combi boilers must install a thermostatic mixer shower that can automatically adjust variations in the incoming water temperature. This prevents sudden drops in temperature.
We are are a local installer offering a great selection of energy efficient boilers across the West Midlands.  We’ll give you a free, no-obligation review of whether your home would benefit from a new, A-rated combination boiler. If you are replacing a very old boiler, you may see substantial savings on your fuel bills with new boiler. Whether you need a gas, oil or LPG combination boiler, a new condensing A-rated boiler is able to convert over 90 per cent of the energy in the fuel it uses into heat. Condensing boilers capture the heat in the boiler’s exhaust gases by turning it into liquid concentrate and using a larger heat exchanger. The time it will take you to recoup the cost of the installation will depend on your heating use, the size of your home and your lifestyle.

 

A) REGULAR BOILERS

Does Your Home Have A Regular Boiler?

If your existing boiler is very old and you have a cylinder in your airing cupboard, the chances are you have a regular or conventional boiler. Regular boilers produce hot water for your radiators as well as hot water for your taps and shower.

Find out more about regular boilers by clicking a question below.

If you have a regular boiler, your home will have a cold water storage tank in the loft known as a cistern. This will be accompanied by an expansion cistern and will feed water to be heated by your boiler and stored in a hot water cylinder.
As combination boilers have no hot water storage tank, they usually aren’t suitable for homes with more than two bathrooms as they might not be able to cope with providing hot water to more than one tap at a time. If your home has a regular boiler installed, there are good reasons for this. Your home either has more than one bathroom or your mains water pressure is very weak. Regular boilers have water pumps to circulate hot water around your radiators or heating system and to your taps. Having a regular boiler is of benefit to your home as more than one room can draw hot water simultaneously without a drop in temperature or pressure.
Regular boilers can be more expensive to install than combination boilers as you have the expense of connecting them to the hot water cylinder, cold water storage cistern and the expansion cistern. The principal drawback to regular boilers is that they do not supply a limitless amount of hot water as combination boilers can, nor do they operate at mains water pressure. Regular boilers only heat a cylinder-full of hot water at a time and when you require a large volume such as when running a bath, you may run out and have to wait for more water to be heated. The electric water pump on which a regular boiler relies will add to your utility bills.
A new, A-rated condensing regular boiler might give you lower fuel bills than your existing boiler, particularly if you are replacing a very old model. A condensing A-rated regular boiler manages to convert over 90 per cent of the fuel’s energy into heat. A condensing boiler manages to capture more of the fuel’s energy with a larger or secondary heat exchanger. The exhaust gas from a standard regular boiler contains a lot of heat that is simply wasted. A condensing boiler converts this gas into a liquid concentrate and uses a heat exchanger to capture it. We are the West Midland’s leader in green technology and offer a free, no-obligation review of your homes needs. We will advise you whether your home would benefit from a new A-rated boiler and help you find the perfect boiler with the most efficient controls that help meet your heating needs.

 

B) SYSTEM BOILERS

Does Your Home Have A System Boiler?

There are two types of system boiler set-ups and both are more expensive than either a combination or regular boiler to install. If you have a cold water storage tank in your loft, but no expansion tank, then your home has a system boiler with an open-vented hot water cylinder. This simply means that the storage tank can feed cold water to the boiler. If there is no visible cold water storage tank or expansion tank in your loft, yet you have a cylinder in your airing cupboard, then you have a system boiler with a pressurized unvented hot water cylinder.

Find out more about system boilers by clicking a subject below.

System boilers with an open-vented hot water cylinder work in the same way as regular boilers. The water they heat water for your central heating, taps and showers is stored in the cylinder before being pumped around your home. System boilers connected to a pressurized unvented cylinder pump hot water through your radiators or heating system and to your hot water cylinder.
As system boilers pump hot water to the cylinder and radiators, they give a much faster response time than regular boilers. They also overcome the limitations of combination boilers as they can supply hot water to more than one room simultaneously with no drop in water pressure or heat. As everything is ‘built-in’ with a system boiler, installation is cheaper and quicker as your home won’t require expensive piping to the expansion cistern in the loft. Unvented hot water cylinders save you valuable loft space and free up your loft for a conversion into living space if you so wish. As a result, you can install an unvented cylinder in any location you choose, even in your garage if you wish.
Although system boilers are cheaper to install as they remove the need for feed and expansion cisterns, as a whole, the entire system is far more expensive than regular or combination central heating solutions. Unvented cylinders are far more expensive as they contain the major components that allow it to function without a cold water storage tank or expansion cistern in the loft. They require specialist installation and higher servicing costs during their lifespan.
If your existing system boiler is a very old, non-condensing type, replacing it with a high-efficiency condensing boiler may save you money on your fuel bills. System boilers are available to run from oil, gas or LPG and the latest A-rated condensing boilers are far more fuel-efficient than standard ones. System boilers receive an A-rating if they convert over 90 per cent of the energy in fuel into heat. Condensing boilers achieve this astonishing efficiency by capturing the waste heat in the boiler’s exhaust gases. While standard boilers would just let this latent heat escape, condensing boilers convert exhaust gases into a liquid condensate and utilize a secondary heat exchanger to capture the heat from this liquid. We are the West Midland’s leading supplier of energy efficient boilers and offer a no-obligation review of your home’s heating requirements. Our qualified staff will assist you in deciding whether a new system boiler would help save you money.

 

C) CYLINDERS

What Type Of Boiler Do You Have?

The type of cylinder that you choose must match the type of boiler in your home. If your home has no hot water cylinder, then you have a combination boiler and no cylinder is required. If your loft has a cold water storage tank and a smaller tank known as an expansion cistern, then you have a regular boiler and should choose a vented cylinder. If your loft has only one storage tank or none at all, then you have a system boiler and the cylinder in your home may either be vented or unvented respectively.

Find out more about cylinders by expanding a section below.

A vented cylinder simply means that mains water cannot be fed directly into the cylinder. Vented cylinders must have a cold water storage tank in the loft to feed water into the system. These cylinders work with either regular or system boilers. Unvented cylinders work with system boilers and are pressurized so require no storage tank. Mains water can be fed directly into unvented cylinders.
Vented cylinders are much cheaper to buy and cost significantly less to install and maintain than unvented cylinders. The drawbacks are that you must pay for the cold water and expansion tanks to be fitted in your loft and incur the expense of the necessary piping. A further drawback is that you must have a water pump fitted as gravity-fed water won’t be at a high enough pressure for your radiators, taps and showers. As the storage tank for a vented cylinder needs to be at least a meter above your radiators for your heating to work, it may cause irritating noises in your loft while pipes and tanks are liable to freezing, given their location. Water pressure and temperature fluctuates more than an unvented system.
Unvented pressurized hot water cylinders allow you to have a system boiler instead of a regular one. System boilers are far more efficient at meeting your home’s heating needs and can supply you with the hot water much faster. The pressure and temperature of this water is much more consistent than with a vented cylinder. As the water comes directly from the mains, you can forgo the expense of fitting a storage and expansion tank in your loft and you won’t require a water pump. Installing an unvented cylinder with a system boiler frees up your loft space and allows you to create a loft conversion, if you want. The main drawback of unvented cylinders is their cost. They have everything built-in and are far more expensive to buy and maintain than unvented cylinders. They also require more expensive specialist installation.
As the West Midland’s leading supplier of green technology, we fit well-insulated vented and unvented cylinders. Either cylinder can be insulated to the same extend but if you consider the system as a whole, unvented cylinders are far more energy efficient. Central heating systems that incorporate unvented cylinders don’t require pipe work running up to the storage and expansion cisterns in the loft. This pipe-work, though insulated, is a major source of heat loss. Unvented cylinders are far quicker at heating water so you stand to save on fuel usage.

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