Exchanging your aging gas boiler?

Identifying a new or substitute gas boiler can be a hard task. You might commence with the cost but also want to think of other considerations, you have to take into account how much hot water you will be likely to want, how cost-efficient the central heating boiler is and what space you have accessible for the installation.

The most common gas boiler types are:-

Stand alone gas back boilers

Some families still have back boilers, if you look carefully in the chimney you might see the back boiler installed out of view, with a fire in front to obscure them. Low water pressure is a problem in these boilers and they are now only fitted as substitutions, fitting requires a lot of space and there needs to be somewhere to conceal the boiler. A replacement back boiler however could be your best choice if you already have one.

Most times, gas back boilers are not very efficient, but the modern gas back boilers are more cost-effective now, so by swapping out an older inefficient back boiler, you might make a large savings on your heating bills with improved boiler efficiency.

The latest Combination heating boilers

In the last few years the combi heating boiler has become the most popular type of central heating boiler sold. As a combi gas fired boiler is small and it will fit into a cupboard and uses gas very economicaly. As they take cold water from the mains and heat it instantly this removes any delay in waiting for hot water – and your hot water supply will be unlimited.

A combi is also more economic than other forms of central heating boiler. Heat losses are reduced as there is no hot water storage tank One drawback to look for is that you hot bath could run cold if someone turns on the hot water taps in the kitchen simultaneously.

Unvented system gas fired boilers

A system boiler works on the concept of stored hot water. You may need to install this in the airing closet taking up valuable space. Many of the constituents of the heating and hot water system are built in, which means that installation is swifter, neater, smoother and more economic.

You can now run several hot water taps concurrently as they are furnished from the hot water cylinder. You can get a good water pressure from a central heating system heating boiler by putting in the hot water cylinder high in the home.

Open vent central heating system boilers

Most probably your household will have an existing open vent gas fired boiler fitted. two water storage tanks will be fitted in the loft with a vented gas boiler, a lot of valuable storage space is taken as the hot water storage is also required in the airing closet.

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

Water expands when heated and this is helped by the second tank in the attic. Although the hot water cylinder will take a while to heat up it it can supply several hot water taps simultaneously.