Different kinds of boilers exist today. You can get a steam boiler, natural gas boiler, hot water boiler, condensing boiler, or the other types for your home heating. With so many options, choosing the best one can be difficult, especially if you do not understand how they work. If you want to invest in quality boilers that efficiently do their job, this article will explain why condensing boilers would be the best modern boiler to achieve your various objectives.

What Is a Condensing Boiler?

A condensing boiler collects the gas that burning fuels (such as oil or gas) generate. Then, it uses the gas to heat the water that enters the system, helping you maximise your fuel use. Compared to other boilers, it has a larger heat exchanger responsible for recycling the heat back to the system. In fact, it is one of the most efficient methods used in warming up the place, helping you save money and make the most of your investment.

How Does It Work?

The condensing boiler has a condensing technology that enables collecting and extracting the wasted heat that burning fuels bring about. Usually, this heat gets lost in the atmosphere if you are using a non-condensing boiler system.

However, the condensing boiler works differently. It captures the hot gasses and brings them back to the system through a heat exchanger, and this process is called the primary circuit. Once heated, the circuit either moves the heat to the heating circuit or the domestic hot water, depending on the boiler type that you would get. 

What Makes It Efficient?

Other heating system works just fine, and they all boil as needed in the end. So why would condensing boilers be better in many ways? The answer lies in the process. We already explained how the boiler works, so it is best to state how the non-condensing boiler heats the water to understand their difference better.

The process for heating water using non-condensing boilers also differs depending on the boiler type that people use. However, they share the same method of constantly circulating the water around a central heating system. 

Let us say a household uses an old Victorian heating system, which uses steam in the process. Heating through steaming is made possible through the use of heavy radiators. In this technique, the water passes over a series of pipes under flames until it reaches the target temperature. Once it is ready, it gets sent out around the circuit and serves its purpose. 

The downside is that the flame produces more heat than the water can absorb, wasting the warmth that only gets vented out to the atmosphere in the end. A condensing boiler’s technology can still reuse that excess heat for future heating.


A condensing boiler is one of the most efficient boiler types you can get for your home or commercial use. It is also the best option if you want to save some money and reduce your place’s carbon emission contribution. Non-condensing boilers are equally efficient, but they can only achieve 70 to 80 per cent of the efficiency compared to the total capacity of condensing boilers. If you wish to utilise the 30 per cent energy that your current boiler fails to recognise, it is time to get the boiler upgrade you deserve.  

If you need any commercial boiler hire services, London Climate Hire is available 24/7. We are a trusted and reliable boiler rental service provider in London. In only a couple of hours, we can send and install running condensing boilers to your place. Get in touch with us today to learn more about our services!