Buying a new central heating system is not a straightforward thing, you first need to interpret what form of system is best suited to your family. This paper will help you to visualise the options available to you. Most if not all of these Central Heating System comprise of a gas fired boiler, radiator and piping.
In northern Europe the primary family system will be the heating system probably powered by a combi boiler, although there is much talk of world-wide warming at the moment there is little mass demand for air conditioning systems. Virtually all new housing developments incorporate central heating systems as a familiar fixture within the household.
The value of central heating systems is fully realised in winter although most are also used to provide hot water every day of the year. A new central heating system can give your dwelling house the ambiance you are looking for. Another essential role for the central heating system is to create hot water. You need heating and hot water every day so you need a system that you can depend upon. You want to match the central heating system to your household needs so that it both meets your needs and uses energy efficiently.
There are two primary types of Central Heating System; pumped/vented and sealed systems.
The most usual type is a pumped/vented system. This type of system has a feed and expansion tank in concert with a hot water cylinder. Water expands when warmed and the expansion tank allows for this. The expansion tank is placed high up in the house often in the attic.
A slightly newer, more up-to-date system that several people are choosing over a pumped/vented central heating system is a sealed system. An advantage of a sealed system is that it has no requirement for an expansion tank. The water for a sealed Central Heating System is rendered direct from the main water supply. It feeds directly from the main water supply. if you embrace this system you don’t need to use your loft for housing in the expansion tank thereby saving space, the whole system is sealed, its unvented, which has its benefits:
- as the piping is removed from the attic it will not be at risk of freezing in the wintertime
- there are fewer system elements reducing any upkeep requirements
- less chance of piping developing leaks
- reduced risk of air locks, corrosion and gunk as there is not a chance of air being drawn down into the system through open vents as the system is sealed
It is usual for the water supply pressure to change and that this is dealt with by incorporating a pressure vessel. Safety valves open if the internal pressure is too high. Other automated valves open to allow the inner water in the boiler to be topped up if it drops to low.
