Combination boiler systems offer many storage space saving and gas economy benefits for the small dwelling house. With just a combi gas boiler and balanced flue you have all the component parts you need to install a full central heating system. All that is additionally called for to heat your rooms is some copper pipes and some radiators. You could be stunned by this and ask whether we had forgotten about some component parts. Central heating systems seem to need a hot water tank to store water, a feed and enlargement tank in the loft and a water pump to move everything around.
If you have a contemporary combi heating boiler it will not need any of these incremental pieces. With a combi you can dispense with the hot water storage tank, storage space in the attic can be saved by leaving out the feed and expansion tank, the combi heating boiler casing also has storage space to contain the other components mentioned. This gets rid of the requirement for a set of components, which take up a lot of room in your home.
Whilst you might consider all this is new actually combi gas boilers have been fitted for a number of years. They have a longer history in the Continent but have now become the most common heating boiler in the United Kingdom. There are two leading deviations between this form of gas boiler and its better known alternatives. The central heating hot water circulation system is sealed. This means that there is no need for a feed and enlargement tank in the loft. The boiler itself contains a large capacity expansion cylinder but again this is part of the sealed unit.
Domestic hot water is produced as required, the heating boiler is aware of this when you turn on a hot water tap. And efficient internal heat exchanger enables the gas boiler to quickly heat and cold water. The heat exchanger is heated by clever use of the existing hot water in the central heating system. On the other side of the heat exchanger cold mains water is heated before completing its journey to the hot water tap.
Hot water production is prioritised ahead of the transit of hot water to the radiators. The instant the valve is shut the combination gas boiler will return to offering hot water to the radiators.
If you do have a storage space issue in your house you should give great thought to installing a combination gas boiler when you next replace your gas boiler.
