A combi boiler (combination boiler) is an all-in-one unit that instantly provides heat and hot water without installing a separate hot water tank.
These boilers are considered the most efficient and can save you money on your energy bills. However, not every home will be suitable for this type of boiler, so understanding the pros and cons will help you make the right choice.
What are the Pros of a combi boiler?
1. Faster and provide hot water on demand.
The main advantage a combi boiler offers homeowners is the immediate supply of hot water without waiting for it. They don’t require an immersion heater or tank, which means they are also easier to install and a cheaper option for households.
2. Cheaper and more energy efficient
A combi boiler can save you money because heated water is not left inside a tank, which could go unused and cause you to consume more energy unnecessarily. A combi boiler can increase your home’s EPC (Energy Performance Certificate) rating – a huge selling point for future buyers or investors.
3. Cleaner and easier to service
A central heating system with a combi boiler will mean you won’t need to worry about rust, debris or sludge building up as no water is not left in a tank; instead, water is channelled directly from the mains.
Most engineers are trained on how to service and repair combi boilers due to how popular they have become, and it’s easier to find help when you need it.
4. More Compact
As there is no requirement for a water tank, combi boilers gift homeowners more space in their loft area, which can be converted into a living space without the unsightly view of a water tank.
The Disadvantages of a Combi Boiler
1. Restricted use
Of course, there are downsides to a combi boiler, which may not suit households with large families or homes with more than one bathroom. For example, you can only access hot water from one source at a time, which means that when one person takes a shower, you will not have access to hot water anywhere else in the house.
2. No Immersion Heater
As there is no immersion heater, you instantly lose access to hot water unless you have an electric shower if your boiler breaks down.
3. Heavily reliant on Mains Pressure
You will also have to consider how strong the mains pressure is in your geographical area, as combi boilers perform better with stronger pressure.
4. No option for a Power Shower
A combi boiler also means you can’t install a power shower because the mains configure the pressure, and there’s no option for adjustments.
Overall, if you live in a house with limited space, have a small family, or a couple, then a combi boiler is ideal.
This post was written in conjunction with The Boiler Exchange who provide new boiler installations in Glasgow and surrounding areas.
The Boiler Experts 
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