Identifying the most appropriate central heating boiler type
Identifying the most appropriate central heating boiler type
Selecting the best heating boiler can be a complex chore. price is obviously one factor but there are different factors, whether you will use one hot tap or many simultaneously it is to be studied, the storage space you have available for heating heating boiler elements and how green the central heating boiler is.
We have listed in the most common types of boiler below to give you additional data:-
back boilers
Some homes still have back boilers, these are are normally obscured at the back of a chimney, the fire hiding the back boiler behind it. If you do not already have this central heating system then its not going to be a first option for you as the water pressure is low, it is space-hungry and in this form of boiler it needs to be hidden somewhere. Having said this your best option could be a substitute if you currently have this type of boiler.
Traditionally, back boilers are not very efficient, but the modern domestic back boilers are more economic now, so by swapping out an aging inefficient back boiler, you could make savings in your energy usage and cut your heating bills.
The latest Combination heating boilers
The most popular type is now the combi boiler. Combi gas fired boilers use gas sparingly and are smaller than other central heating boiler types enabling them to be squeezed into small cupboards. They also heat cold water immediately meaning that you do not will have to wait for a hot water cylinder to heat up – as a result you have endless hot water.
They are more economical than other types too. As they don’t store hot water there are reduced heat losses. A disadvantage of this can be that the central heating system cannot deliver hot water to several water taps at the same time.
Unvented central heating heating boilers
Your system central heating boiler will use a hot water tank to store previously created hot water. You may want to install this in the airing cupboard taking up valuable space. The other system constituents 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. If the hot water tank is fitted high in the home you will also get good internal water pressure.
Open vent system boilers
Most houses will have a vented heating boiler fitted. If you have one of these you will want to water tanks to be fitted in the attic, additional space is also called for for the hot water storage tank fitted in the airing cupboard.
The first tank in the attic feeds mains supply water to the hot water storage tank.
The other cylinder in the attic facilitates expansion of the water in the system when it heats up. Showers, taps and running baths can be run in any room concurrently, but be aware that if the cylinder should become cold it will take a while to reheat.