BoilerCraft is a heating company of boiler engineers in Cardiff. Built on experience, hard work, and a genuine care for customers.

Condensing boilers are a lot more efficient due to the fact that new heat exchangers inside the boiler are far more efficient at transferring heat from the burning gas to the water inside your heating system. This causes the products of combustion to leave your boiler at a much cooler temperature which means the water vapour created in the combustion process is cool enough to condense inside the boiler. This water known as the condensate must be piped to a drain or a waste pipe as it is slightly acidic.

Combi boiler
Combi boilers are designed to give instant hot water and are ideal if space is at a premium. They can be installed in any room of the house. They give good hot water pressure as they are fed directly from the cold main. Combi boilers are sized depending on your cold water pressure and flow rate – if these aren’t good enough then a combi won’t be right for you. If you use lots of hot water, have two or more bathrooms or have more people than bedrooms in your house then a combi might not be the most cost effective way of heating your hot water. A conventional system or system boiler may be more suitable for you in this instance.

Conventional boilers
This is the old type of system which requires a hot water cylinder and two tanks in the attic to supply water for your hot water and heating. The controls are all external and are usually located in the airing cupboard. This system would be used if you have low water pressure, use lots of hot water or as a cheaper solution to upgrading your boiler to a condensing boiler.

System boiler
This is a sealed system which doesn’t require a tank in the attic for the central heating. Many of the controls required for a heating system are housed inside the boiler meaning quicker and easier installation. System boilers require a cylinder to provide hot water.

Boiler efficiency naturally drops over time, as debris builds up within the system it can stop the boiler working at its maximum perfomance.

If the debris is left and not flushed out it can cause damage to your boiler and system.To decrease the risk of damage to your boiler, it is recommended that you get the boiler serviced regularly, removing debris and potential blockages and therefore ensuring that the boiler is working to the best of its ability.

Over time it is normal for air to build up in your radiators which can affect their efficiency. When air builds up it will mean some areas of radiator will be colder than others. You can normally tell if your radiators need bleeding as they will be colder at the top than at the bottom. If this is the other way round (cold at the bottom and hot at the top) this could mean that sludge has built up in your radiator and you might need your system cleaned.

1. An annual boiler service is usually required to maintain any manufacturers warranty.
2. Seals and other components can degrade over time and become dangerous. Regular checks give piece of mind and keep you and you family safe.
3. You can pick up on issues before they escalate.
4. You could save money on your energy bills, our Gas Safe engineers will check that your boiler is running efficiently.
5. If you are a Landlord, it is a legal requirement
6. Some house insurance policies require a boiler service to maintain their validity. ​

Get in touch with BoilerCraft for Gas Safe registered and expert boiler engineers in Cardiff.