Features of new and replacement central heating boilers
Features of new and replacement central heating boilers
When you select your next boiler there are a multitude of matters you require to take into account. You might start with the price but also need to think of other factors, the amount of hot water wanted at any moment is also important, how economical the heating boiler is and what space you have accessible for the installation.
The primary gas fired boiler types are:-
Gas gas back boilers
In the past gas back boilers were frequently installed in families, these domestic back boilers were typically fitted in the chimney space out of view, with a fire in front to hide them. If you are going to change or boiler you will not be installing one of this type as they had certain drawbacks and in particular low internal water pressure, they take up space to install and you will need someplace to hide your boiler. Nonetheless, if you do already use a back boiler, then it could be the best option for you when the moment comes to exchange it.
Previously domestic back boilers had not been economical, but big improvements have been made over the past 5-10 years, so by swapping out an aging inefficient back boiler, you could cut your heating bills through improved efficiency.
The latest Combination gas fired boilers
In recent years the most popular type of central heating boiler sold is the combi gas fired boiler. Combi heating boilers use gas sparingly and are smaller than other central heating boiler types enabling them to be thrust into small cupboards. Heating water direct from the cold mains removes any wait moment for hot water – consequently you get a plentiful supply of hot water.
They are more economic than other types too. As they don’t store hot water there are diminished heat losses. 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 central heating system gas fired boilers
central heating gas boilers store hot water in a hot water tank. You may require to install this in the airing cupboard taking up precious space. The other central heating components to be integrated into the central heating boiler simplifying the installation.
You can now run several hot water taps concurrently as they are provided from the hot water cylinder. You can get a good water pressure from a central heating system boiler by putting in the hot water cylinder high in the home.
Open vent central heating boilers
Most probably your dwelling house will have an existing open vent gas fired boiler installed. If you have one of these you will need to water cylinders to be fitted in the attic, a lot of valuable storage space is taken as the hot water storage is also required in the airing closet.
One of the loft tanks feeds the hot water storage cylinder with water from the mains.
The 2nd is called the feed and expansion and this enables the water in your central heating to expand and contract. Showers, taps and running baths can be run in any room simultaneously, but be aware that if the tank should become cold it will take a while to reheat.