Are you looking to get a new central heating system installed in your home? Perhaps your boiler is playing up and you want to know a bit more about it, or a bit more about the technology works in general. Regardless of why you want to know about boilers, you’ve found the right article for you. In it, we’re going to look at how your home heating system and especially your boiler works. We’ll mostly be looking at gas boilers, although we will touch on a few other types so you can know exactly what to use in different situations.

Boilers work by “boiling”, but there’s a lot more to them than that. We’ll get to that in a minute. Getting a new central heating system can be expensive, but it’s important in heating your home. There are a number of different implications that you might need to be aware of so that you can get the most out of your heating system and the most affordable option. Remember, sometimes a more expensive initial boiler and installation cost could be a much more efficient system. That means it could save you on heating bills throughout the year, more than making up for the higher upfront cost. That’s something you need to remember when looking at a new boiler and central heating system.

How does a boiler work?

The basics of a boiler are like this: You have a boiler in a convenient location. This can sometimes be indoors but it’s good to have them in a garage or somewhere separate from your main home these days (there can be issues with carbon monoxide but these are rare). The boiler then takes water in and uses a furnace to heat the water, it then sends this heating water around the home via pipes to radiators, showers and other things that need hot water. It’s really that simple, but we can look in a bit more detail about how they work in the next few paragraphs.

If you’re concerned about having your boiler inside, keep a carbon monoxide alarm in the same room. It should be fine, it’s just something you need to be aware of. If the carbon monoxide alarm ever goes off, leave your home immediately and phone the emergency services or at the very least and emergency plumber. Do not return inside until you’re sure it is safe and the boiler has been replaced or fixed by a certified expert.

Boilers are the central part of most home’s heating system. They use a constant supply of gas to continuously heat water that is then pumped around the home. However, they won’t always be working on full power and this can be controlled by a thermostat or manually. When rooms dip below a certain temperature, the boiler should automatically increase power to heat more water and pump it to the radiators in that room. Similarly when you turn the hot water supply on before a bath, the boiler will increase output to heat the water that’s needed. When the boiler is put into use, a valve in it will switch to let gas enter a combustion chamber and is jetted onto a heat exchanger. This is connected to a cold water piper and will heat the water which is then sent around your home. These pipes will normally be on a continuous circuit so that the water will come back to be reheated once it has cooled down.

How to choose the right installation team for your boiler

Installing boilers might seem easy, but it isn’t. While a lot of the work might be straightforward, you need to make sure it has been carried out by a professional plumber with the right certifications and qualifications. You can normally ask to see a copy of their accreditations as well as for any references they might have.

Ask around in your local area if your neighbours or people you rely on can recommend a plumber or boiler professional. Check reviews online for both the best boilers to get and the best plumbers. Only go with someone you know is going to do a good job. Make sure the plumber doesn’t push you in the direction of a different boiler just because they stand to earn money. Consider buying the boiler separately rather than through the plumber.

How to save on heating costs in your home

Getting a good boiler is the first step in saving money on heating your home. There are lots of different boilers with different energy efficiency ratings, and this will have an impact on the cost. Another thing that will impact these costs is how big your home is, the general weather conditions of your area, and the design of your property. If you want to have a few more tips to help reduce heating costs or so you don’t need to fire up that boiler quite as often, let’s have a look:


Insulated walls and cavities (as well as the roof) can make a big difference on your heating costs. That’s because a lot of the heat your boiler and home generates can be lost if you don’t have the right insulation. While it might cost a bit to install, it could soon pay for itself and more if you keep more heat in your home during the winter months.


Windows work the same way as insulation, and you’ll want to make sure you’ve got the best double or triple glazing so that you can keep more warm air in during the winter. That can help reduce energy costs and the burden on your boiler.

Now you know a bit more about how boilers work, what to look for, and how to use them safely. A boiler is an important part of a home’s heating system, and it shouldn’t be overlooked. Getting a new one could actually save you money.

About the Author James S

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