Matters to consider when choosing a central heating boiler
Matters to consider when choosing a central heating boiler
Choosing the right boiler can be an intricate undertaking. In addition to the cost involved, the amount of hot water called for at any moment is also important, the space accessible in your house and how economical your new gas boiler will be.
The most familiar central heating boiler types are named below for your consideration:-
Gas gas back boilers
Back boilers are still seen in some families, these are are normally hidden behind a chimney, the back boiler being hidden behind the fire. Low water pressure is a problem in these gas boilers and they are now only fitted as substitutions, they want a lot of space and you will require somewhere to conceal your boiler. A substitute back boiler however could be your best alternative if you currently have one.
Previously back boilers had not been cost-efficient, but the more modern versions are more economical, so by changing an elderly back boiler, you could make large savings on your annual heating charges.
Popular Combination gas boilers
In recent years the most popular type of boiler sold is the combi gas boiler. They are cost-effective and small enabling them to be fitted into small spaces. Because they heat water direct from the mains, you do not have to wait for water to heat up - this means you get an on-going stream of hot water.
A combi is also more economical than other types of heating boiler. Heat losses are reduced as there is no hot water storage cylinder Look out for somebody turning on all the hot water taps in your home whilst you are having a hot bath as it could temporarily turn cold.
Unvented central heating gas boilers
A central heating gas boiler works on the principle of harnessed hot water. This will need space in your home. Constructing the other central heating system constituents into the gas boiler this means that installation is less complicated and lower-priced.
Running various streams of hot water from diverse taps simultaneously is now manageable. You will also get good water pressure.
Open vent central heating system boilers
Most households will have a vented gas boiler installed. They come with two water cylinders to be fitted in the loft., the airing closet is still required for the hot water storage tank and overall this takes a lot of space.
The hot water storage cylinder is supplied by one of the storage tanks in the loft.
Water expands when heated and this is helped by the 2nd tank in the loft. The only restriction on hot water supply now is the capacity of the hot water cylinder which will take a while to heat up fully.