Modern condensing boilers are very popular and are an excellent alternative to their traditional versions. They are characterized primarily by high efficiency and economy. Using them is also safe. Choosing the right home heating is a very important decision, and a condensing boiler can work perfectly. Find out what its advantages are and how it works.
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A condensing boiler is a component of a heating system that is responsible for generating heat and distributing it to individual rooms. As the name of this device indicates, inside, in a closed chamber, the process of condensation, or condensation of water vapor from the flue gases, takes place. This recovers energy that can be reused. It is due to the process of condensation that such boilers have a much higher efficiency compared to traditional models.
There are single-function and double-function condensing gas furnaces on the market. They differ from each other primarily in their application. The former only supply the central heating system. They do not have heat exchangers, so they are not able to heat domestic water on their own. For this to be possible, it is necessary to use special heaters.
On the other hand, a condensing dual-function gas boiler heats water on a flow basis and both feed the central heating system and deliver it to the taps. It should be borne in mind that in the first moments after turning on the tap, cold water flows, which was in the pipes. Most often, it is only after several seconds that it has the desired temperature.
Condensing furnaces can successfully work with both traditional radiators and underfloor heating. This is possible because the device is compatible with a low-temperature system, and such is the underfloor. To increase the efficiency of such heating, it is worth using wireless and wired systems from Engo Controls. They allow you to conveniently control the temperature in individual rooms. This not only provides adequate comfort but also has a beneficial effect on reducing the expenses associated with heating. Thanks to regulators and controllers, it is easier to control the temperature level and ensure that it is not too low or too high.
Without a doubt, the most important advantage of such a furnace is its efficiency. It makes maximum use of the fuel burned and thus provides heat. The best condensing gas boilers are distinguished by an efficiency of up to 107-109%. This is possible due to the use of energy escaping during condensation of water vapor and cooling of flue gases.
The cost of purchasing such a furnace is higher than for a traditional model, but in the long run, it is a more cost-effective solution. All thanks to the mentioned efficiency. Such a boiler uses less fuel, and at the same time provides the optimal temperature. However, it is necessary to remember that it is essential to take care of the tightness of the heating system, as well as the quality of the fuel. The gas supplied to the boiler must not have impurities.
Condensing gas furnaces are automated and therefore virtually maintenance-free. In addition, it is worth equipping them with remote control systems via the Internet, which you will find in the offer of Engo Controls. Thanks to them you will be able to control the operation of your device even when you are away from home. Such a solution is not only comfortable but above all economical.
A modern boiler adjusts its operation mode to the conditions outside. It can be programmed to operate at full power when the ambient temperature is very low. On the other hand, on other days, when the demand for heat is much lower, the device will use fuel economically. Such action will translate into lower bills.
Listing the advantages of a condensing boiler, we can not forget about safety as well. It has a closed combustion chamber, and the air necessary to carry out the heat generation process is supplied from the outside through special pipes. As a result, the room in which the furnace is located is not cooled. Such a boiler is also safe since the exhaust gases are discharged to the outside.
Other advantages with which a condensing furnace is distinguished are:
– quiet operation;
– no need to store fuel;
– low operating costs;
– easy installation;
– stylish appearance and compact size.
For more information, please visit Wall Mounted Condensing Gas Boiler.
In contrast, the biggest disadvantage of the boiler is its price. You have to pay significantly more for a modern model that is fully automated than for a traditional gas furnace. However, the investment is usually already returned within a few years thanks to the fact that a condensing boiler uses less fuel and is more efficient.
When choosing a condensing boiler, first of all, consider what functions it should perform. As you already know, it can only supply central heating, or it can also be used to prepare domestic hot water. Also, pay attention to the control automation with which a particular model is equipped and with which it can work. The more advanced the technology, the more comfortable the use of the device.
Condensing boilers are also divided by the method of installation into wall-mounted and floor-standing. The former is perfect for small rooms where there is not much space. A standing furnace is worth using, for example, in the boiler room, that is, where it will not interfere with normal operation. Such a model is usually more capacious than a wall-mounted boiler.
When choosing a condensing furnace, consider its power. This is a key parameter that must be matched to the size of the building, as well as its thermal insulation. The larger the volume and heat loss, the more power is needed.
When considering the type of heating in your home, consider installing a condensing gas boiler. This is an extremely efficient device that will allow you to save on fuel, with minimal effort during operation.
Wall mounted gas condensing boilers are particularly suitable for use in new buildings and small apartments. These extremely compact appliances can fit in virtually any space. They are used either solely for DHW heating or for space heating as well. In the case of the latter, they are referred to as combi boilers. Both versions work according to the instantaneous water heating principle. They therefore do not usually have a storage water heater and only heat water when it is needed. This means that they react very quickly to changing requirements. The disadvantage of DHW heating using the instantaneous water heating principle is that hot water is not available immediately. To avoid having to run water from the tap for a long time before it gets hot, some wall mounted gas condensing boilers have a small integral storage water heater.
Floorstanding gas condensing boilers take up slightly more space. This is mainly because they have a larger storage water heater in which the heated DHW is kept at a constant temperature for a longer period of time. This is particularly efficient if larger quantities are needed on a regular basis.
If there are plans to connect a solar thermal system for DHW heating, we recommend choosing a floorstanding gas condensing boiler with integral solar indirect coil. This is mounted on the buffer cylinder or near the draw-off point and heats the DHW. In combined systems such as these, there is no mixing of heating water and DHW. The floorstanding units are already designed for dual mode operation. This means that they can easily be combined with another heat generator to cover the heat demand. In terms of technology, Viessmann gas condensing boilers are state of the art and cover an output range of around two to 100 kilowatts (kW). This enables them to efficiently and reliably supply heat to detached homes, two-family houses and small apartment buildings at all times.
Floorstanding gas condensing boilers are also available in larger sizes. These are mainly used in buildings with a high heat demand, typically apartment complexes, public buildings and commercial premises. Thanks to the cascade function, several appliances can be quickly connected to form one unit and provide reliable heat in this area too.
In Germany alone, there are still around two million heating systems in use today that are more than 25 years old. By replacing these boilers with highly efficient gas condensing boilers, consumers can save a lot of energy –– as much as 35 percent when a modern gas heating system is used alongside solar technology. This would translate into ten percent of Germany's total energy needs, with annual CO₂ emissions being reduced by up to 54 million tonnes at the same time.
The savings are made possible because condensing technology uses energy extremely efficiently. This is due to the fact that it converts virtually all of the energy content of a fuel into heat. So anyone opting for a gas condensing boiler, for example, is able to keep their heating costs low in the long term while reducing the burden on the environment. After all, less combustion also means fewer CO₂ emissions.
All Viessmann gas condensing boilers meet EU-wide requirements for efficient condensing technology. 98 percent or more of the energy spent is converted into heat. With such unbeatably high levels of efficiency, anyone opting for one of these gas heating systems is making a positive contribution to protecting the climate and the environment.
As already mentioned at the beginning, one of the advantages of gas condensing technology is its high level of compatibility. In practice, this means that most gas condensing boilers come from the factory already prepared for combined operation. The combination of gas condensing boiler and solar thermal system has proven to be very ecological and economical. In this configuration, the solar thermal system is responsible for DHW heating using the free solar energy. This means that the gas boiler does not have to do so much work. This also reduces heating costs.
To the solar thermal system product range
Combining with a heat pump is another possibility. In this dual mode operation, the heat pump not only provides domestic hot water the whole year round, but also heating. If peak loads occur when the weather is very cold, the gas boiler is switched on as well.
It is also possible to operate a gas condensing boiler with a biomass heating system. Be it a log boiler, pellet boiler or woodchip boiler: here too, the gas boiler only needs to be switched on if there is an unexpectedly high heat demand.
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