Before choosing a new boiler for your home, you should first assess what your heating and hot water needs are, and how much space in your home you are prepared to give over to it.
A condensing boiler makes better use of the heat that it generates from burning fuels such as gas or oil. They work by recovering the heat that would normally be wasted by conventional boiler systems. In a conventional boiler some heat is lost because the boiler releases very hot waste gases from its flue. Instead of wasting this energy a condensing boiler uses some of the heat from these waste gases to heat water returning from your central heating system,
so it requires less heat from the burner. This makes your condensing boiler more efficient.
Condensing boilers fall into two main categories – regular and combination. Since combination boilers aren’t compatible with all types of central heating system it is best to seek the advice of a professional heating engineer to find out which type is most suitable for your home.
A Condesing Boiler is the name given to a boiler that provides heat for central heating and heats water instantaneously on the opening of a hot tap. Condesing Boilers do not need to store hot water in a copper cylinder which leads to elimination of hot water storage components in the cupboard saving you space and reducing heat loss from the stored hot water. This improves the energy efficiency profile and means that there are fewer components in the system.
Back boilers, hidden behind a chimney, are installed in a lot of older homes, and while they are not as efficient as modern combi or system boilers, they do provide a reliable source of hot water to a number of simultaneous outlets. Although it is not recommended that you buy this type unless it is a replacement for a similar unit, modern back boilers are a lot more efficient than older ones.
Burner is a heart of the boiler which converters water to steam. This burner is heated by supplying fuels into it. Generally the steam needed to heat your houses, buildings, hospital, office and other places where heat is required is created by the fuel that is burned and supplied to the boiler from the burner. The burner can be heated by using different fuels like natural gas, coal or wood pellets. If you’re using natural gases, then the natural gases are released into the burner through a special pipe which heats the burners. If you’re using any oil to heat the burner the then the oil is supplied to them which pressurizes and heats the burners. When it comes to wood pellets, the woods are burned using some fuel which helps to heat the burners.
Watertube Boilers: In the Watertube Boilers the tubes are arranged vertically in the shell. Then the water is filled in the shell which is heated by sending the hot fuel or hot gases through the tubes. Generally Watertube boilers are built in rectangular shape with two or three drums. The drums are arranged at the top and bottom, where top drum is used to separate water and steam and the bottom drum is used to collect he sludge. Watertube boilers are usually utilized when more than 750hp of steam per hour is required.
The temperature generally rises up to 212 degree Fahrenheit when the fuels or hot gases released into the boiler from the burner which heats up the water. At this temperature the water converted to the steam. The steam generated is then circulated throughout the building or home using radiators, vents and pipes, specifically created for heat transferring.
To overcome the problems like overheat of the boilers, some of the heat is retained in the boiler to keeping the building or home warm needs. Since more steam is produced as the temperature increases, it is essential to check the boiler and ensure that excess pressure is not built. To check the pressure build up, run your boiler for short durations of time. Furthermore, they have to be maintained regularly to keep them in optimum working condition.
