The primary forms of central heating systems
The primary forms of central heating systems
There are several alternative forms of Central Heating System on the market and numerous forms of gas boiler to drive these. In this page we will discuss that the forms of central heating system available to help you match them to your requirements. The type of central thinking system selected will determine the type of heating boiler to be installed.
Whether you are purchasing a new development or established dwelling house you’ll find that it will contain a central heating system which is a modern day necessity. Most existing houses and virtually all new dwelling developments now contain central heating systems to heat the household and supply hot water.
Whilst we tend to forget about the central heating system it will be operational everyday to provide hot water and comes to the fore in the wintertime when heating your dwelling house. Heating your dwelling house provides a restful and cosy ambience. In addition to heating the dwelling house the central heating system will be used to provide hot water when called for. As heating and hot water are essentials your system needs to be reliable. You want to fit the central heating system to your home needs so that it both meets your needs and uses energy efficiently.
Whilst there are several forms the two primary types of system are vented and sealed systems.
The most usual type of system is the pumped or vented system. The main difference you will see is that this form of heating system in addition to the hot water cylinder is that it has an expansion tank. The expansion tank permits the system to be topped up with water and creates headroom for the hot water to expand when the heating system is used. The attic is most usually used to house the expansion tank as it needs to be high in the house.
A more modern option is a sealed system. Sealed systems have fewer elements having no need for the water expansion tank. The water for a sealed Central Heating System is rendered direct from the primary water supply. It feeds directly from the primary water supply. if you embrace this system you don’t need to use your attic for housing in the expansion tank thereby saving space, the whole system is sealed, its unvented, which has its benefits:
- no chance of freezing pipes in the attic
- fewer constituents mean reduced get costs
- less copper piping and joints to leak
- you will get fewer troubles from air entry leading to corrosion or blocks
Any water pressure variations are accommodated by the incorporation of a pressure vessel. Safety valves open if the internal pressure is too high. Other automated valves open to allow the inner water to be topped up if it drops to low.