Exchanging your old central heating boiler?
Exchanging your old central heating boiler?
Choosing a new or replacement heating boiler can be a difficult project. cost is evidently one factor but there are other considerations, you will require to think over on how much hot water your house will use, the storage space you have available for heating gas fired boiler constituents and how green the gas fired boiler is.
We have named in the most popular forms of heating boiler below to give you supplementary data:-
Gas domestic back boilers
It is not uncommon to see back boilers in aging housing stock, if you look cautiously in the chimney you might see the back boiler fitted out of sight, when the coal fire at the front obscuring the back boiler. Low water pressure is a problem with these gas back boilers and you will not be putting in one of these unless it is a substitute, installation requires a lot of space and you will want someplace to obscure your boiler. Notwithstanding this if you currently have a back boiler then a transparent replacement could be your best choice.
Domestic back boilers have not been very economic in the past, but the more modern versions are more economic, so by swapping out an older inefficient back boiler, you could make large savings on your annual heating charges.
The latest Combination central heating boilers
In recent years the most popular type of gas fired boiler sold is the combi gas fired boiler. They are cost-effective and small enabling them to be installed into small spaces. Because they heat water directly from the water mains, you do not have to wait for water to heat up – accordingly you get a plentiful supply of hot water.
Combi boilers are more cost-efficient than the other central heating boiler types. There is no hot water storage tank reducing heat losses in the system. A drawback of this can be that the central heating system cannot deliver hot water to several water taps simultaneously.
Unvented central heating system gas boilers
central heating system gas fired boilers use a water cylinder to store hot water. This will need space in your home. Many of the elements of the heating and hot water system are built in, which means that installation is swifter, cleaner, simpler and more economical.
Storing hot water means that you can run hot water from many taps or a shower simultaneously. internal water pressure is increased if the cylinder is fitted high in the house.
Open vent system central heating boilers
Most probably your household will have an existing open vent gas fired boiler fitted. two water cylinders will be fitted in the loft with an open vent heating boiler, this is in addition to the hot water storage tank in the airing closet and all this takes a lot of space.
The hot water storage cylinder is supplied by one of the storage tanks in the attic.
The 2nd tank is the feed and expansion tank which maintains the right level of water for your central heating system, enabling water expansion when you turn the heat on. Whilst you can now run many hot water taps simultaneously you will be restricted by the hot water tanks capacity.