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Best Combi Boilers For Your Home

Best Combi Boilers For Your Home

Your boiler is one of the most important parts of your home. This is why the government continues to uphold The Boiler Plus standards for domestic boilers to ensure that all households across the country have the proper heating that’s both effective and efficient.

Combi boilers are particularly effective due to their compact size and efficient heating. Now, how do you choose the right combi boiler? Well, there are a few things you have to take into consideration.

Choosing the Right Boiler

Energy Level

One of the things you must consider is efficiency. How much heat are you getting compared to the energy used? The metric used for this is the Annual Fuel Utilisation Efficiency. The baseline measurement for this would be the nationally mandated 78%. Now, while boilers, in general, are considered pretty efficient boasting an AFUE of 82% to 90% this is especially true for combi boilers. This is because combi boilers heat water directly from the mains and feed it directly to your tap. This means that no hot water is stored anywhere in your home. Not only are combi boilers energy efficient but they also take up less space in your home.


So how big does your boiler have to be to provide sufficient heat for your home? A good rule of thumb for this would be to multiply your square footage by 50 to determine how big of a boiler you will need to heat your home. For example, if your home is 1125 square feet your boiler should be able to produce 56,250 Btu. Remember that this is a rough estimate and it would be optimal to consult with professionals to figure out how big of a boiler you’ll need.


Lastly, you’ll have to consider installation as costs could come into play when it comes to choosing a boiler. On average, boiler installation will cost you somewhere between £2,850 to £6,515. Now, this is a rather considerable amount. This is why it would be in your best interest to avail of insurance during the installation process. HomeServe documents how boiler insurance covers both the tank and the supply pipes in its standard coverage, with more expensive plans also including electrics and the home’s plumbing. This coverage will ensure that should anything go wrong, during the installation or after, you won’t be without hot water for long. This is especially important when you consider the fact that the Office of National Statistics estimates that 11% of annual household spending go to maintenance and repair — something that you should keep in mind when accounting for overall costs.

Now, with those factors in mind here are our picks for the best combi boilers that you can install in your homes.

Best Boilers for Your Home

Worcester Bosch Greenstar 25i Combi Boiler

Image Credit: [Worcester Bosch] – No changes were made to the image
Here’s a brand that came out on top in The Guardian’s survey on the most reliable boiler brand. Indeed, their Greenstar model has been the gold standard for combi boilers. This boiler comes in two variations the 30i and the 25i. The 30i’s are better suited for large properties, while the 25i’s are perfect for smaller to medium-sized lots. Both models can only reliably support properties with one bathroom. They feature higher hot water flow maxing out at 12.3 litres/min ensuring that your tap and your shower are at optimal pressure levels even when using hot water.

Viessmann Vitodens 050-W Combi Boiler

Image Credit: [Viessmann] – No changes were made to the image
The Viessmann Vitodens 050-W Combi Boiler is probably the best boiler you can get if you’re on a strict budget. Not only is it more affordable than the other boilers on this list but it also comes with a stainless steel heat exchanger. This is crucial as this is usually the first part that gives out in other boilers, meaning that this boiler will be repaired less often in the long run. It’s a pretty adequate boiler overall, boasting a Class A rating for energy efficiency.

Vaillant ecoTEC pro Combi Boiler

Image Credit: [Vaillant] – No changes were made to the image
Here’s a combi boiler specifically built for small to medium homes. What’s great about the ecoTEC pro is that it comes with an LCD display, making it one of the easier boilers to use thanks to its intuitive design. It also features precision heating which will do wonders for your electricity bills, along with thermostat control that you can tweak using the vSMART™ app.

If you’re looking for more ways to improve your home, be sure to check out our article on 5 Inexpensive Ways to Spruce Up Your Home.

Yorkshire Wonders

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