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your old gas fired boiler?







your old gas fired boiler?

Picking Out a new or replacement boiler can be a tough task. price will be high on your list but you also need to think of other matters, you have to consider how much hot water you will be likely to require, how efficient the boiler is and what space you have accessible for the installation.

The main gas fired boiler types are:-

Gas Fired domestic back boilers

In the past domestic back boilers were frequently installed in families, being installed in the chimney they were hidden from view, the fire concealing the back boiler behind it. Low internal water pressure is a problem in these gas boilers and they are now only installed as substitutions, space can be an issue and you will want to find a place to hide this type of boiler. However if you already have a back boiler then a transparent replacement could be your best option.

domestic back boilers have not been noted for their efficiency in the past, but the modern back boilers are more economic now, so by changing an aging back boiler, you might make a large savings on your heating bills with improved boiler efficiency.

Modern Combination heating boilers

In recent years the most popular type of boiler sold is the combi gas boiler. Combi boilers use gas sparingly and are smaller than other gas boiler types enabling them to be squeezed into small cupboards. As they take cold water from the mains and heat it instantly this removes any delay in waiting for hot water – as a result you have endless hot water.

Combi central heating boilers use less energy than the other types.. Because combi gas fired boilers dont use an external hot water tank, there is no water cylinder to heat first, and no need to reheat the same water once again if youve let it run cold. Look out for somebody turning on all the hot water taps in your house whilst you are having a hot shower as it could temporarily turn cold.

Unvented central heating system heating boilers

central heating central heating boilers use a water cylinder to store hot water. You may require to install this in the airing closet taking up valuable space. Constructing the other central heating parts into the gas boiler this means that installation is less involved and lower-priced.

A Benefit of the hot water tank is that it enables the drawing of several streams of hot water simultaneously. system boilers tend to give high water pressure.

Open vent central heating system boilers

The most familiar home central heating system is an open vent heating boiler. 2 water tanks will be fitted in the loft with a vented gas boiler, the airing cupboard is still required for the hot water storage cylinder and overall this takes a deal of space.

The first tank in the attic feeds mains supply water to the hot water storage tank.

The other cylinder in the attic enables expansion of the water in the system when it heats up. Although the hot water cylinder will take a while to heat up it it can supply several hot water taps simultaneously.

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