Combi Boilers

What is a Combi Boiler?

Traditionally called a combination boiler, they were initially designed to combine all components of a traditional central heating system into one compact unit. A combi boiler is a type of boiler that can provide both hot water and central heating.

Here at Home Heating Systems Ltd, we offer a wide range of combi boilers from the UK’s leading boiler brand Worcester Bosch. You can receive up to a 12 year guarantee and finance options are also available.

Boiler & Client

How Does a Combi Boiler Work?

Modern combi boilers use condensing technology to heat the system water efficiently by extracting latent heat from the flue gases. When you require heating or hot water, a gas burner in the combi boiler is ignited. The heat from the flame is transferred via the main heat exchanger to the primary circuit, at which point the heat is moved directly to the radiators or your hot water taps via a plate heat exchanger.
Many modern combi boilers also have a pre-heat system, allowing the combi boiler to store a small amount of water drawn from the boiler. The water is held inside the boiler and maintained at your desired temperature throughout the day. That is then ready to be sent to the hot water tap as quickly as possible.

What are the Benefits of a Combi Boiler?

Combi boilers are highly efficient when compared to older boiler models. Replacing your boiler with a newer combi boiler could help you to save up to £300 a year on your heating bills.
Combi boilers are far less complex than traditional heating systems, so installations are cheaper. It is also easier to find replacement parts if a problem occurs.
With no water tank to heat up, combi boilers can provide an unlimited supply of hot water on demand. No waiting time!
As there is no need for a separate water tank, combi boiler systems take up much less space than conventional heating systems. This makes them ideal for homes that have limited room.
The cold water from a combi boiler system is always safe to drink as it is fed directly from the mains. However, this is only sometimes true of traditional systems, which may store cold water in a tank before it is piped through the house.
Combi boilers are more efficient than other boiler types; this can be a selling point if you want to rent or sell your property. This will also show on the Energy Performance Certificate (EPC).
Combi boiler systems do not tend to suffer from air locks or low pressure, as the hot water is taken directly from the water mains.
Central heating systems with a combi boiler generally have less sludge build-up because the water is piped directly from the mains and not kept in a tank where it can accrue rust and debris.
The popularity of combi boilers means that most boiler engineers are trained on how to repair and service them. This makes it easier to find qualified engineers in your area.
Worcester Bosch Combi Boilers