Picking Out the right boiler type
Picking Out the right boiler type
You could want assistance in choosing your next heating boiler as this is not a straightforward cost based decision. price is evidently one factor but there are different considerations, you will require to contemplate on how much hot water your home will use, how much gas the gas fired boiler will burn and how much space you have to install it.
The main forms of gas fired boiler are:-
Stand alone back boilers
In the past gas back boilers were frequently fitted in households, these are are usually hidden behind a chimney, the fire hiding the back boiler at the back of it. Low internal water pressure is a problem in these gas boilers and they are now only installed as replacements, it is space-hungry and you will need a place to both install and conceal this type of boiler. A substitute back boiler even so could be your best option if you already have one.
In the past gas back boilers have not been noted as being very economical, even so lately large advances in efficiency have been realised, so by replacing an aging back boiler, you could make savings in your energy usage and cut your heating bills.
Modern Combination gas fired boilers
The combi central heating boiler is now the most popular type of central heating boiler. They are cost-effective and small enabling them to be installed into small spaces. As they take cold water from the mains and heat it right away this removes any time lag in waiting for hot water – this means you get an on-going stream of hot water.
Combi boilers use less gas than the other types.. There is no hot water storage cylinder reducing heat losses in the system. The downside of this is that combi boilers sometimes struggle to supply several hot water taps at the same time.
Unvented system gas boilers
A hot water tank is used by a central heating heating boiler to store of water. This means that you will require an airing cupboard or alternative space for the hot water storage tank. One benefit of this type of system is as many of the system components are built into the boiler allowing a speedier and lower-priced installation.
An advantage of the hot water cylinder is that it helps the drawing of several streams of hot water simultaneously. central heating system central heating boilers tend to give high internal water pressure.
Open vent central heating heating boilers
The most popular home central heating is an open vent gas boiler. This type of system uses two water tanks, both located in the attic, additional space is also called for for the hot water storage tank fitted in the airing cupboard.
The hot water storage cylinder is supplied by one of the storage tanks in the loft.
The second is called the feed and expansion and this enables the water in your central heating system to expand and contract. Whilst you can now run several hot water taps concurrently you will be limited by the hot water tanks capacity.