We’ve had a lot of queries from clients asking about condensing or combi boiler, or what is the difference between a combi boiler and a condensing boiler. To make it clear from the start, those are incorrect questions because all modern combi boilers are condensing boilers. If your boiler has suddenly broken down after 20 years of daily use, and you’ve never had to shop around for a new boiler, we don’t blame you for being stumped at the moment and wondering whether to buy condensing or combi boiler. Which is why we’ve written this in-depth, factual article and tried to answer all questions, to help you make an informed decision.
When people search condensing or combi boiler online, they probably mean “conventional” or combi boiler. Conventional boiler or regular boiler are just different names for an Open Vent boiler. Open Vent boilers have hot water cylinders and attic tanks. Which is what most of the average semi-detached family homes in the UK will have. Sealed System boilers are newer, and just have a cylinder for DHW (domestic hot water) storage. Along with modern combi boilers, all modern Open Vent and Sealed System boilers are also condensing boilers. Just to make it really simple, ALL boilers manufactured in 2018 are condensing boilers.
Before we get into the nitty-gritties, if you’d like a quote for a condensing or combi boiler and talk to a heating expert for any free heating advice, please enter your postcode below and hit the green button: