Basic generalities in the assembly of a metallic wood chimney Main floor

Main floor

This plant is the one we consider as the main one, where we will install the metal chimney. The normal thing is that this divided in two parts, body and tube or exit of smokes. We will proceed to the assembly of the two pieces. In our case the union is made by means of a wick that takes the body of the chimney of 10 cm that will be where the tube or exit of smoke is inserted, previously special silicone for high temperatures was placed that was applied in the inner part of the tube of exit of smoke. Never in the wick of the body as this would cause when connecting the two tubes that the excess silicone protrudes from the outside.

If the room is higher than 2.90 m, the tubes can be connected until it is necessary. The joints will be in 2-meter sections, to avoid heat deformation as much as possible. The union between them will be by means of a 10 cm. wick, the same as in the case of the union of the body with the tube described above.

Second floor

Once they reach the floor, the section of the pipe may not coincide with the pipes to be installed on the upper floor, which will have to be double-chambered stainless steel and insulated with rock wool. To do this we will install the adapter to go to a circular diameter of 15, 20, … cm, depending on the model of the chimney. Once installed, we will start to assemble the pipes until we reach the covered floor. The union of them is by means of metallic clamps.

Covered floor

We have to take into account that the smoke outlet has to be between 1 m. and 1,50 m. with respect to the bony ridge, the highest part of the roof. This can be done on site or by following the metal conduits, in both cases we will have to place a hat to facilitate a correct exit of smoke and avoid the entry of water.

 

What is the minimum height for a good run?

It depends on the chimney, but talking about the metal chimneys, the minimum height at the exit has to be 3.50 m.

Can a very high height affect the smoke outlet?

On the contrary, it facilitates the suction of the smoke. The more height the more suction

How do I keep a fireplace from smoking?

As long as the problem is not the bad interior design of the fireplace there are two very important causes.

It is very important that once we leave the floor where the chimney has been installed, the ducts of the other floors will be double chambered and thermally insulated. If this is not the case, the smoke will cool down before it reaches the chimney exit, causing a plug to form in the chimney plaster.
Once the summer season is over, the smoke outlet hat should be checked. Sometimes the birds make their nests inside and plug the smoke outlet.

Can I make deviations in the flue pipe?

Yes, you can do it as long as the elbows are not more than 45º.

Do I have to clean the flue pipe?

Yes, of course. It will depend on the spindle that is given to the chimney, but the normal is every year. The ducts should be cleaned because the soot remains stuck in them ostrating the duct on the other hand the accumulation of it can cause a fire. If the installation is done correctly with AISI 316 stainless steel pipes, the cleaning can be extended, as stainless steel is more resistant to soot getting stuck in its walls.

 

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