How does a condensing boiler work?
Posted: Sun Dec 15, 2024 3:36 am
Condensing boiler: Types and operation
Condensing boilers have become a staple in our homes as they are key to achieving the European Union's climate objectives . Furthermore, since 2015, it is the only model manufactured.
Did you know that with condensation technology you can reduce energy consumption by 25% and adapt the power to the needs of each home? Find out how condensation boilers work and all their advantages before choosing a model for your home.
What is a condensing boiler?
It is a type of boiler that takes advantage of the latent heat in combustion fumes during condensation , when the gaseous state is transformed into the liquid state of water.
If we want a more technical definition, we can consult the Performance Directive 92/42/EC and RD 275/1995, which specifies that a boiler is a condensation boiler if it has been designed to “condense a large part of the water vapour present in the combustion gases”.
When the boiler is not a condensing boiler, part of the latent heat is evacuated through the flue gases. This means that the temperature of the combustion products can reach up to 120 °C. However, with condensation technology, a large part of the latent heat is recovered, which reduces the temperature of the flue gases , which are 45 °C or even less.
The main consequence of this is that emissions of polluting gases are limited, making it one of the most efficient boiler systems .
In old boilers, heat was released in the form of mobile phone number list smoke, so that up to 35% of the calorific value was lost through the gas outlets.
Are condensing boilers mandatory?
Yes. The Royal Decree on Thermal Installations in Buildings (RITE) requires any home built after 2013 to install condensing boilers . In 2015, the European Union also approved the European Ecodesign Directive and the Energy Labelling Directive, which only allows the manufacture and marketing of condensing boilers.
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However, instead of wasting this calorific value, all the heat is recovered and used to provide hot water and heating . Let's go step by step so you can go through the whole process:
The boiler is activated when the heating thermostat detects that the temperature is lower than that indicated by the user.
The gas is mixed with oxygen entering through the air inlet tube.
Thanks to the fan, the mixture of water and air rises to the combustion chamber .
A part called a spark plug creates a spark essential to ignite the gas in the burner and heat the pipe around it .
The smoke from the combustion gives off its heat to the pipes to take advantage of all the heat energy.
The temperature of the exhaust fumes drops . Part of the water vapour that was to be discharged condenses and returns through the outlet pipe to the boiler. From there, it leaves through the drain.
Condensing boilers have become a staple in our homes as they are key to achieving the European Union's climate objectives . Furthermore, since 2015, it is the only model manufactured.
Did you know that with condensation technology you can reduce energy consumption by 25% and adapt the power to the needs of each home? Find out how condensation boilers work and all their advantages before choosing a model for your home.
What is a condensing boiler?
It is a type of boiler that takes advantage of the latent heat in combustion fumes during condensation , when the gaseous state is transformed into the liquid state of water.
If we want a more technical definition, we can consult the Performance Directive 92/42/EC and RD 275/1995, which specifies that a boiler is a condensation boiler if it has been designed to “condense a large part of the water vapour present in the combustion gases”.
When the boiler is not a condensing boiler, part of the latent heat is evacuated through the flue gases. This means that the temperature of the combustion products can reach up to 120 °C. However, with condensation technology, a large part of the latent heat is recovered, which reduces the temperature of the flue gases , which are 45 °C or even less.
The main consequence of this is that emissions of polluting gases are limited, making it one of the most efficient boiler systems .
In old boilers, heat was released in the form of mobile phone number list smoke, so that up to 35% of the calorific value was lost through the gas outlets.
Are condensing boilers mandatory?
Yes. The Royal Decree on Thermal Installations in Buildings (RITE) requires any home built after 2013 to install condensing boilers . In 2015, the European Union also approved the European Ecodesign Directive and the Energy Labelling Directive, which only allows the manufacture and marketing of condensing boilers.
Image
However, instead of wasting this calorific value, all the heat is recovered and used to provide hot water and heating . Let's go step by step so you can go through the whole process:
The boiler is activated when the heating thermostat detects that the temperature is lower than that indicated by the user.
The gas is mixed with oxygen entering through the air inlet tube.
Thanks to the fan, the mixture of water and air rises to the combustion chamber .
A part called a spark plug creates a spark essential to ignite the gas in the burner and heat the pipe around it .
The smoke from the combustion gives off its heat to the pipes to take advantage of all the heat energy.
The temperature of the exhaust fumes drops . Part of the water vapour that was to be discharged condenses and returns through the outlet pipe to the boiler. From there, it leaves through the drain.