Combi Boiler: Is it right for me?

Maybe you’ve just bought a brand new home, your existing boiler has broken down, the boiler you have is over 12 years old or you are not happy with your current central heating system, then it may be time to start considering a replacement such as a combi boiler. 

Combination boilers are fantastic. They provide heating and hot water on demand – meaning you can do away with the hot water tank.

One of the main reasons many people install a combi boiler is the fact that you can do away with the water tanks and hot water cylinders, this naturally free up a lot of space.  An obvious benefit is if you live in a flat or small house where space is at a premium. 

Being able to use your existing airing cupboard for additional storage space is often an appealing thought. You will still need space for the boiler, but it is typically similar in size to a standard heat-only boiler and could go in the same space. 

Relating to our previous point about combi boilers, they don’t produce and store hot water. Regular boilers hot water tends to be produced twice a day, regardless of if it’s going to be used or not – usually this happens in the morning and in the evening. This requires the boiler to fire up to produce hot water, and if for whatever reason it doesn’t get used the water simply cools down, which is a waster of energy. 

A Combi boiler only heats water when you need it to. When you turn on a tap or shower, only then will the boiler come into action and fire up. Naturally, for many people, the produces a substantial energy saving. 

Combi boilers are the popular choice amongst people who have a relatively small hot water demand at any one time. 

If you require in multiple areas of your home at the same time – for example running two showers at the same time in the morning, then a combi boiler wouldn’t be suitable for you. If this is the case you should look to get wither regular or system boilers installed. 

Unlike with a regular boiler or system boiler, once you have used all the hot water, that is it; you’ll need to wait until the boiler fires up and produces new hot water as per your programmer settings. With a combi boiler, you could in theory produce limitless hot water although the mains water pressure defines the output.

It is also always worth mentioning the efficiency – a new combi boiler, such as a Valliant, should be around 90% efficient (as would a new system or regular boiler), so if your boiler is particularly old you might want to install a new boiler at this point.  

We often recommend looking to install a boiler before the winter months, since at this time there tends to be a big rush on plumbers, this can push the prices up on installation costs a little. Another benefit of changing your boiler before the winter is ensuring that your home heating isn’t affected during those cold icy nights. 

Our final point relates to positioning the new boiler – with regards to where the existing boiler and flue currently sit. If the boiler is being replaced then the flue will have to sit on an outside facing wall, which may require physically relocating it. This will add to your costs. A plume diverter may also need to be installed depending on how close the current flue is in proximity to your local neighbours.

Whether or not a combi boiler is right for you simply depends on whether you have a small home and a low water demand then combi boilers are a fantastic solution. Also if you are just moving into a property and will be carrying out extensive refurbishment, then having a new heating system installed at this time is ideal.

On the other hand, if you have a large house with extensive hot water demand at any one time, you may want to go for a system/regular boiler.

If you need more help and advice about what boiler system is right for you, get in contact with us at TNC Heating! We are a friendly team who are always happy to help.  

Combi Boiler

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