Are you preparing to replace your old boiler? On average, these appliances typically last 10 to 15 years. By the time you enter (or re-enter) the market, there’s likely plenty of terms and jargon that you either don’t know or have forgotten. This is especially true if you’re buying for the first time. What’s a combi boiler? How does it differ from system and regular options? Where do condensing boilers come into all this?
As domestic and commercial gas engineers and plumbers covering Chelsea and the neighbouring areas, we make the services we offer as simple as possible, including our:
This includes clear and concise communication that clarifies any terms or jargon you may not understand.
In this blog, we provide an overview for everything you need to know about condensing boilers. If you have any further queries about the specifics of condensing boilers, please contact us.
Let’s start with a simple clarification: all modern boilers, be they combi, regular or system, are condensing boilers. There’s no need to worry about whether you should choose a condensing model or not – by law plumbers and heating engineers across the country can no longer install non-condensing appliances.
In 2005, the government set a new standard for boiler installations. Put simply, non-condensing options weren’t efficient enough to meet modern standards. As such, every new boiler installed in a residential property had to be a condensing model with an ‘A’ rating for efficiency.
The term ‘condensing’ helps to explain how these boilers operate. In short, condensing appliances use innovative technology to make better use of the heat they generate.
When you burn fuels like gas or oil, the process releases several by-products, including heat and gasses. Non-condensing boilers release these into the atmosphere via a flue, losing all the resultant heating potential.
Condensing boilers capture these hot gasses and recycle them back into the system through a heat exchanger. These recycled gasses then pass into something called the primary circuit. Depending on the type of boiler you fit in your Chelsea home, the primary circuit will either move the gasses to the hot water system or the heating circuit (radiators).
In comparison, non-condensing boilers have an average efficiency of between 70% to 80%, while newer condensing models exceed 90%. It’s easy to see, then, why plumbers and heating engineers only install these particular appliances.
The greater efficiency of condensing boilers lays the foundations for multiple benefits.
Because your new boiler has optimal efficiency, it doesn’t have to work as hard as your previous appliance. In turn, your household in Chelsea consumes less energy. In theory, you will then spend less money on hot water and heating your home – although energy prices will also have an effect here.
When it comes to efficiency and costs, the best way to conceptualise it is with every £1 spent. With 100% efficiency, every penny of your pound goes toward heating costs. With every percentage point dropped, so a penny falls away too.
As such, if your boiler reaches 90% efficiency, £0.90 of your pound goes toward heating costs. Compared to a possible £0.70 with a non-condensing boiler, the savings soon mount up.
Ecoheat Plumbing are Gas Safe registered plumbers and heating engineers. All our boiler-related services in Chelsea comply with current guidelines and regulations.