Central Heating System Choices
Central Heating System Choices
There are numerous alternative types of Central Heating System available and numerous types of boiler to power these. To help you understand the choices available we will outline the main variants of system. When you buy a central heating system you are essentially buying a collection of different parts including a gas boiler and radiators.
In northern Europe the main dwelling house system will be the heating system, although there is much talk of world-wide warming at the moment there is little mass demand for air conditioning systems. Whether you are looking at a completely new home or an established house one of the features you will need to look into is its central heating system.
Try running a dwelling without your central heating system switched on and you will quickly picture how important the system is. You can unwind at family when the heating is running. The central heating system also can give you a cheap source of hot water. As heating and hot water are essentials your system needs to be dependable. Out of sight day-to-day operation without unforeseen breakdowns is a standard requirement of any central heating system.
There are two main types of Central Heating System; pumped/vented and sealed systems.
The pumped or vented system is most frequently seen. This type of system has a feed and expansion tank together with a hot water cylinder. The expansion tank permits the system to be topped up with water and creates space for the hot water to expand when the heating system is used. The expansion tank needs to be installed higher than the other system constituents and most often this will be placed in your loft.
If you buy a new dwelling you may now find that it contains a sealed central heating system. A sealed system, as the name suggests is a closed system so no water tanks are needed. The water for a sealed Central Heating System is provided direct from the primary water supply. It feeds directly from the primary water supply. This eliminates the requirement for any piping or central heating water tanks in the attic, the sealed nature of the system without any venting delivers a number of benefits:
- as the copper piping is removed from the loft it will not be at risk of freezing in the winter
- fewer component parts mean reduced purchase costs
- less hazard of copper piping developing leakages
- reduced risk of air locks, corrosion and gunk as there isn’t a chance of air being drawn down into the system through open vents as the system is sealed
A pressure vessel is included in the system to deal with any pressure variances in the water supply. Valves allow cold water to enter and top up the system when pressure falls, other safety mechanics open valves if the inner pressure is to high.
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