The rewards and drawbacks of the contrasting heating gas boiler variants

There are a number of kinds of Central Heating Systems on the market these days. Most if not all of these Central Heating Systems comprise of a heating boiler, some radiators and connecting pipework.





Across the majority of Northern Europe the climate is not warm enough to warrant air conditioning. In fact, a decent central heating system is a necessity in these regions, and due to this, a majority of new houses have a Central Heating system.





With wintertime coming up round the corner heating should be at the front of your mind. A heated home has a comfortable and enjoyable feel to it. Your Gas Central Heating System must be fault free as much as possible and efficient to cut bills. It is important to have peace of mind that your Gas Central Heating System is not only practical to use but also safe.





Vented (or pumped) and Sealed heating systems are the two most common types available.





Pumped or vented Central Heating systems are most popularly used. The pumped/vented Central Heating Systems have an expansion tank and a feed. Your house gets hot water through the stored hot water tank, it also supplies heat to the radiators. Water expands when heated; this expansion is accommodated in a feed-expansion tank. The tank is positioned at the point of maximum height, usually in the attic area to create water pressure. The hot water tank has two main functions; to heat the house and and provide hot water for washing.





Most houses, especially the old ones will have a vented/pumped heating system.





A slightly newer central heating boiler is sealed heating system and this is the preferred heating system in newer properties. No water tanks are needed for a Sealed system as it is a completely closed setup saving space. In the absence of water tanks and pipework, the whole system is sealed and vented; here are some prominent benefits of such a system.





- No risk of freezing pipes in the attic.





- There won't be any repair work on the tank or pipes which will be in the attic for a pumped/vented system.





- The risk of a leaking water tank is all together missing.





- As there are no open vents, air cannot enter into the system and so the risk of corroding, airlocks and sludge is drastically diminished.





- Can be easily rinsed out under pressure via the main water supply.





A sealed Gas Central Heating System is a packaged unit with all the necessary controls and safety devices. No tank feeds a sealed system, the supply comes directly from the mains. The main water supply feeds the system immediately under pressure.





Normal variations of pressure can be allowed in a sealed system through a pressure vessel that contains compressed gas; this is separated from the sealed system water by a diaphragm. Pressure buildup in a Sealed system can be relieved by a safety valve which drains out water; and pressure drop is compensated by automatic fresh intake of water via another valve.





Central Heating Systems are a worthwhile investment as they have the lowest cost of performance when compared with other types of heating. Their ease of operation and versatility is much better than other types of heating.