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The exhaust pipe of a heating stove is simply the most important element of the stove. And yes, even though this drain hose is rarely visible, will depend on its installation our safety, and the proper operation of the stove.

The exhaust pipe of a heating stove: its role

The exhaust pipe of a heating stove has a double-role: on the one hand, it serves to evacuate the fumes of combustion. And on the other hand, to renew the amount of air in the home bringing back "new" air.

Generally, it is invisible: it is often "hidden" in the roof, and all that we see in the house is the connecting pipe to which the drain pipe is connected.

The exhaust pipe of a heating stove: a question of safety and performance

As often, it is what you do not see that counts the most... The exhaust pipe of a stove does not lie that adage, far from it. If its installation is so important and delicate, it is that it will condition the performance of the stove, and our safety!

Indeed, a poor quality exhaust pipe, poorly installed or poorly adapted, makes us run the risk:

  • That the draft of the stove is bad, and that it loses in yield.
  • That the conduit clogs up faster, with the dangers it entails: flaring of the pipe and chimney fire, intoxication by smoke and toxic gases.

The exhaust pipe of a heating stove: the essential safety rules

In order to guarantee optimal and safe use of our heating device, the exhaust pipe of a heating stove must therefore meet certain safety standards.

The book that refers to the subject: the standard NF DTU 24.1. A technical document that establishes the rules for the design and implementation of flues and connections. Thus, if we want our exhaust pipe to comply with the laws in force and be installed in the state of the art, better comply with it.

As an indication, this document mentions in particular:

  • the nature of the drain pipe. The use of non-extensible flexible hoses with a maximum length of 2m is for example the only one authorized by the DTU 24.1.
  • the size of the drain pipe. The diameter and height of the duct must be proportional to the size of the stove.
  • implementation rules. The deviation on the exhaust pipe of a heating stove is possible, but at the maximum number of 2, with an angle of 45° maximum.

Floor penetrations should not interfere with duct expansion, etc.

Video Instruction: Wood Stove Install- Stove Pipe And First Fire