What Are the Various kinds of Boilers Available?

There are three main forms of boilers: Combination, System and Open Vent.

Combination Boilers

Combination boilers (combi boilers) will be the most popular boiler that's fitted in the united kingdom right now. Combination boilers are units that take away the need for a warm water tank, and so save space in the home as no airing cupboard is necessary and no space is adopted in the loft. As the name suggests, combination boilers combine two functions - not only do they provide hot water to a property, in addition they become a central heating boilers. Combination boilers run 'on demand' which means they provide instant warm water when required.

Pros of combination boilers:

- Space saving.
- Saves money because there is no warm water tank which should be constantly heated to keep the water hot.
- Water received through taps and other outlets reaches mains pressure
- Less pipe work is necessary when installing so installation is generally quicker.

Cons of combination boilers:

- As the water given by combination boilers is 'on demand' at mains pressure, if several outlets are opened simultaneously (taps/showers/washing machines) the pressure could be reduced depending on how powerful the boiler is.

Go to this site  (sealed system boilers) include a sealed unit that always runs at about 1 bar of pressure. System boilers need a water storage cylinder to store the warm water for the property, that is generally installed in an airing cupboard.

Pros of system boilers:

- Good for homes with more than one bathroom as the type of boiler system can deliver warm water, at the same pressure, to several outlets simultaneously.
- No dependence on an expansion tank in the loft thus giving you more storage space in the attic.
- High water pressure.

Cons of system boilers:

- Can be expensive to correct and install.
- Airing cupboard is necessary.

Open Vent Boilers

Open vent boilers are usually linked to two tanks housed in the loft space of a house. One of these brilliant tanks is really a small 'feed and expansion' tank that is used to provide water to the boiler and radiators, another is a larger cold water storage tank which gives the water required for an open vented warm water cylinder.

Pros of open vent boilers:

- Mainly utilized in properties where there are many outlets (taps etc.) that could be used as well.
- Relatively cheap to replace.

Cons of open vent boilers:

- Low water pressure.
- If the warm water cylinder empties you might have to wait some time for it to re-fill and warm up.
- Takes up a great deal of space in comparison to other boilers.

As you can plainly see there are benefits and drawbacks for each type of boiler, if you are still unsure concerning which boiler will best work for you, most good boiler installers will advise as per the list below:

If you have a set or bungalow with no roof space - Combi Boiler.
If your property has 2 or even more bathrooms - System or Open Vented.
If you are within an area with low mains water pressure - System or Open Vented.
If you are looking to upgrade an existing conventional boiler to high efficiency - System, Open vented or Combi.
If there are many people in your premises requiring warm water on demand - Combi or System boiler with a hot water cylinder.
If your property is really a loft conversion - Combi.

When purchasing boilers for installation in the home, or in the workplace, it is always advisable to get hold of an installer who has all of the relevant qualifications to complete the job accurately and safely. An established installer of boilers will also offer you the very best advice concerning which system will suit your requirements. Do not attempt to use a boiler system yourself unless you are fully qualified.