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A boiler is simply the most important part of a central heating system as it generates the heat that warms up the home or property. Basically, the appliance or small furnace makes use of gas, LPG or oil in order to fuel its operation. However in the UK, most boilers are usually fuelled by natural gas which is supplied automatically from the national gas grid. And depending on how it operates, there are various types of boilers.

Typically, a gas central heating boiler will have multiple pipes entering from underneath. While one pipe supplies the boiler with gas from the mains gas supply, another pipe allows cold water to enter the boiler to be heated, the last pipe then enables hot water to exit the boiler so it can be distributed around the home.

✓ There are fuel jets and heat exchangers inside the boiler. When the heating is turned on, a valve is opened to allow the mains supply gas to enter a sealed combustion chamber in the boiler. There are multiple little valves which permit the entry of the gas before being ignited by an electric ignition switch. These jets heat a metal component in the boiler known as a heat exchanger which works to transfer the heat to the cold water pipe and heat up the water.

✓ Once the water has been heated to the target temperature, it’s then pumped through a circuit of pipe which runs around your home by an electric pump.

✓ The heated water enter each radiator, is then transmitted via a closed loop and radiates heat into each room.

✓ Once done travelling through all radiators, the water then returns to the boiler at which it must have been cooled. Therefore, the boiler will have to reheat following the same process before circulating. The water can only be drained by a professional Gas Safe engineer

Re-pressurising your boiler means that you allow more water to enter system via the filling loop. It can be easy to re-pressurise your boiler yourself. Always check your manual, but there are some simple steps you can take to restore pressure to your boiler:

• Switch off your boiler and let it cool completely

• Make sure both ends of your filling loop are attached

• Open both valves to allow cold water into the system – you’ll hear it start to move

• Look out for your pressure gauge to show 1.5 bar

• Close both valves

• Switch your boiler back on

• Undo both ends of your filling loop and remove it. Remember some water might come out, so be ready to catch some spillage!

Modern oil boilers do not require a lot of maintenance. OFTEC recommends that oil boilers are serviced and inspected every year. This keeps them running as efficiently as possible and will ensure any issues with your boiler are identified before they cause bigger problems. This servicing is also vital because of the increased risk of carbon monoxide leaking from a poorly maintained boiler.

Biomass boilers can be designed to work with other kinds of heating. The most common of these is solar thermal. This is a popular renewable energy pairing. Solar thermal heating will meet your hot water needs during the summer while a biomass boiler can operate as a backup during the winter when solar thermal panels do not perform as well.

What Size Of Electric Boiler Do I Need?

If you’re thinking about installing central heating in your home or property, you’ll be shocked by the plethora of options that’s currently available in the market as regards the boiler type that can be installed. Being a very good alternative to gas boilers or an oil or LPG boiler, electric boilers are here to stay. They usually feature different power outputs which tends to lead to one of the most frequently asked questions about electric heaters - what size of electric boiler do I need? Here, we’ll give you a good insight into sizes of electric boilers available to help you make the right decision.

The importance of getting the perfect size of electric boiler for your home can not be over-emphasized. If your electric boiler size is too small, it won’t be able to provide the level of heat and hot water required. And on the other hand, if it’s too big, it’ll definitely consume more electricity which would be a total waste of money.

To determine the correct size, if you have a wet central heating or water radiators in your home, you’ll need to calculate the boiler’s capacity required to operate them and allow 1.5kw per radiator. To be more accurate, it’s advisable to talk to a professional installer to avoid making a costly mistake. Every professional installer should have an idea of the appropriate size of electric boiler that’ll be needed given your special requirements and home size.

Generally, with a 12k kilowatt boiler, you should be able to operate up to 7 to 8 radiators which is good for smaller properties. For apartments and flats, getting a smaller electric boiler would be the best option.

How Long Does A Gas Safety Certificate Last?

As a result of faulty installation and irregular maintenance of gas appliances and chimneys, a lot of people have been met with an untimely death caused by the toxic gas - carbon monoxide. This is a gas that’s completely odourless, colourless and tasteless - meaning you can’t identify one of its in the environment. But what you should know is, if you stay in an environment filled with carbon monoxide, you’d probably be dead within a couple of hours. Consequently as a landlord, you must do what’s best to ensure the safety of all your tenants by making sure that all your gas appliances and chimneys are subjected to annual check by an approved Gas Safe engineer as required by the law.

Wondering how long a Gas Safety Check will take? The safety of your gas is guaranteed by carrying out regular examinations. Whether or not you possess a gas alarm, it’s still vital to conduct regular gas safe checks to make sure your home is safe. A typical gas safe check would last between 30 to 60 minutes for a normal domestic property. However, in the situations whereby a need for repair arises, it may take longer time to complete. Other factors that can also affect the timing includes includes both the size and location of your property.

So how long does a gas safety certificate last? The simple answer to this question is 12 months. If you own a rental property in the UK, it’s up to you to ensure all your gas appliances and chimney is check after every 12 months to obtain a Gas Safety Certificate which you should hand out a copy to all tenants living in your property. However, if you don’t own the property, you can inform your landlord to get one as soon as possible while also providing a carbon monoxide alarm.

How Often To Service Boiler?

A boiler is a vital part of any home especially if you’re in the UK. Not only does provide your entire household with hot water and keep them warm but also adds a good value to your property. Boiler repairs and replacement are both super expensive and stressful, so in order to avoid all these worries, it’s better to have your boiler serviced on a regular basis for your own peace of mind. When you call in a reliable heating engineer, it can immensely raise your boiler’s efficiency while also saving you from more expensive issues down the road.

So if you haven’t had your boiler serviced for quite some time, moved into a new house and not aware the last time your boiler was serviced or perhaps you’re just wondering how often a boiler should be serviced, then you’ve come to the right place! The short and simple answer to this question is a boiler should should be serviced once in a year, and most preferably during the summer months. However, there are a wide range of factors that comes into play so it’s always advisable to check with your manufacturer before you proceed.

According to the law, you’re required to have your boiler services on an annual basis. Failure to do so can render your boiler or home warranty void. Therefore, it’s very crucial to take down the last time your boiler was serviced and also set a reminder to book your next appointment when the time closes in.

If you happen to own an electric boiler you may not need an annual servicing. But you may still be required to perform it annually by your insurance provider.

Biomass boilers do require some maintenance. Many manufacturers recommend servicing twice a year, although this is often included in the installation cost. Many systems have automatic fuel loading that removes the need to manually load fuel. You will need to remove the ash from the boiler, but this is as easy as emptying a vacuum cleaner.