Best Condensing Boilers

It can be a challenging prospect trying to discover which boiler is right for you. However, this guide will inform you with the relevant knowledge, helping you to understand exactly what a condensing boiler is, how it works and the best models available on the market.

A condensing boiler is a boiler that uses gas or oil, to heat the water within your home’s heating system. These boilers are found in most modern UK homes, as they are far more efficient than old, non-condensing boilers.

In non-condensing boiler systems, gas emissions are released into the atmosphere, leading to lots of wasted energy. Condensing boilers use condensing technology to heat your home in a more efficient way, as when gas is burned, the emissions are recycled back into the system using a heat exchanger.

The key strength condensing boilers possess is their energy efficiency. Modern condensing boiler models generally achieve an efficiency rating of over 90%, whereas non-condensing systems typically only manage a rating between 70 to 80%. As the efficiency of heating systems decreases with age, old non-condensing boiler can have ratings as low as 50%.

Therefore, a condensing boiler’s ability to save and recycle energy will help you to save a massive amount of money on your energy bills. This condensing technology also leads to lower carbon emissions, making your home more environmentally friendly.

With all the different boiler models available on the market, it is still important to realise that condensing boilers can still be either a regular, a system, or a combi boiler.

The Alpha Combi E-TEC plus is a condensing boiler, that has a central heating output of 32kW. This supports around 15 radiators, while the hot water output can meet a demand of up to two bathrooms. To ensure a higher level of energy efficiency, Alpha has fitted this boiler model with a stainless steel heat exchanger and a Grundfos pump. It also includes a single electrode, easy access, integrated filling loop and user-friendly controls.

The Baxi 800 Combi comes with the compact Adey Magnaclean Micro2 magnetic system filter to extend the boiler’s lifespan. If you are concerned about your new boiler’s longevity, then you will be pleased to know it comes with a ten year parts and labour warranty, giving you total peace of mind.

The Vaillant ecoTEC Plus 938 storage combination boiler is suitable for larger houses with a higher water demand. This is down to the fact that this boiler has a built-in hot water storage device, enabling it to deliver up to 20 litres of hot water per minute. This is significantly more than a traditional combi boiler, while still avoiding the inconvenience of any additional hot water cylinders or tanks.

The Vitodens 100-W is Viessmann’s best-selling gas condensing boiler. Efficient, compact, quiet and affordable, this boiler model is popular for smaller and well-insulated homes. The Vitodens 100-W comes equipped with smart technology, allowing you to optimise your heating settings while reducing your energy costs.

The Greenstar i is Worcester Bosch’s most popular boiler. This model is suitable for small to medium-sized homes, that have one bathroom. It comes with user-friendly controls, allowing you to comfortably optimise your heating and hot water settings. With a low energy pump, the Greenstar i limits its electrical usage, making it an efficient option.