The principle of operation of condensing gas boilers is to use the energy from gas combustion and the resulting exhaust gases. They are designed to use all the energy to convert it into heat. However, for this to be possible, the stove must have properly connected chimney pipes. How to do it? What is it about?
Check chimney pipes at the Onninen wholesaler
How to properly connect chimney pipes?
Correct connection of chimney pipes guarantees what is most important - effective and safe operation of the device. This requires taking into account several key factors. Firstly, it is important to use materials adapted to the type of fuel and exhaust gas temperature. Secondly, the pipe connection must be as tight as possible to prevent leaks and, even worse, carbon monoxide from entering the room. They must be carefully prepared before installation. We should treat flanges in the same way as with chimney pipes. It is extremely important to remove all contamination at this stage and then degrease the surfaces. This will ensure proper adhesion of the sealing materials.
The key is to fit the pipe to the flange so that the connection is proper 
tight. We may need to use sealing materials such as tape or sealing paste to improve this effect. Connect the pipes in such a way as to reduce the resistance to exhaust gas flow and at the same time prevent condensation inside the pipes. Avoid too long horizontal sections, as water vapor condenses intensively in such places. If we connect them ourselves, it is a good idea to consult it with an appropriate specialist after finishing the work. It will assess whether the installation has been carried out correctly.
What is the diameter of the chimney pipe?
Correct connection of chimney pipes to a condensing furnace is important 
importance, but this is not the only important issue to remember. Choosing the appropriate pipe diameter is equally important. This largely determines how the furnace will function. A well-matched diameter affects several important parameters, such as combustion efficiency, boiler efficiency, but also the minimization of exhaust gas flow resistance. To match them properly, we must take into account the power of the boiler, especially since in the case of condensing furnaces there is a recommended minimum diameter for the selected power. We cannot forget about other factors, including the length of the chimney pipe, bends and various obstacles. The rule is that the longer the pipe, the greater the resistance to exhaust gas flow. For this reason, it is possible that its diameter will have to be increased so that the efficiency of the furnace is not disturbed.
Overview of chimney pipes at the Onninen wholesaler
We see how important it is to choose the right chimney pipes and connect them correctly. For this reason, it is worth investing in proven solutions - these can be found in the offer of the Onninen wholesaler.
PP L1000mm DN80mm
Reliable products are available, such as a straight PP L1000mm DN80mm chimney pipe, resistant to UV radiation, with a [EPDM] gasket. Made of resistant polypropylene with a 15-year warranty. Extremely easy to install and process.
L500mm DN60mm
Another interesting solution is a straight chimney pipe L500mm DN60mm with the same good properties as the previously described product (among other things, it is resistant to UV radiation). All of them are offered in different sizes, so they can be easily adapted to a specific solution.
PP 12m DN60mm
The proposals also include flexible inserts, such as PP 12m DN60mm , which do not require connectors and do not have a gasket. Easy to install, even in curved and unusual chimney shafts. Of course, this is only part of the rich product offer of the Onninen wholesaler.