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Closing the chimney, a simple job even for those who do not have practice and experience. There are different solutions, close it definitively as in the first step or close it by isolating it to give it a higher yield and better functionality, or if you want to look at the design we can see the chimney as a piece of furniture.

How to close a chimney?

You will need a circular section chimney and building material.

Chimney closure

Initially, we are going to check which material our chimney is made of, after the verification we proceed with the closure, if the chimney is made of brick we can proceed with the physical demolition of the chimney, then obtain an electric breaker with tip and chisel and a stonemason’s bundle with a chisel.

How to close a chimney

At this point, being very careful, and putting all the protections (goggles, gloves, etc.) we take the breaker and start the demolition. The demolition of it must be done in accordance with the rules, d otherwise, if signs of soot remain in the demolition, I even have encrustations due to the previous combustion, they could create very evident problems when finishing the wall where the chimney was placed with cement plaster.

Once it is ascertained that there are no impediments and impurities, it can carry out the final finishing and closing first with plaster and finally with a smoothing mortar. By performing this procedure you will have the house wall both inside and outside depends on where the chimney was positioned if internal I external from the property.

Chimney closure with finish

To close a chimney and at the same time beautify the house, it can be closed with plasterboard walls along the section of the chimney, building a metal structure where the plasterboard panel can be anchored, after building the metal structure, coat the chimney with an insulating and flame retardant material, a tip is glass fiber or better yet ceramic fiber that resists significantly higher temperatures and without dispersing heat outside and having a better draft performance, once the flue is completely isolated, fix the metal structure to the wall with dowels if possible or with immured flaps.

The last step screws the plasterboard panels to the metal structure so that they end and definitively close the chimney. Get a plaster putty knife and smooth to then paint the wall, or finish with other materials such as tiles or stones. On the plasterboard wall having made a sturdy metal structure, you can anchor it for any shelves if necessary.

Flue design radiant

The flue of a pure biomass stove gives off a very intense color so it could be very convenient to take advantage of this heat with the irradiation. Let’s suppose that we have the flue, possibly in steel, which crosses our house, going to make it dark. from the inside of the wall, we would find the steel tube visible and when the boiler is at full capacity the tube gives off high heat, to exploit this heat and putting the tube in protection, a grid is applied around the tube anchored to it with due distance to ensure that anyone who gets their hands on it cannot get burned.

The flue would become a radiator, plus if you wanted you could paint the tube with high-temperature paints to your taste to give an innovative design. I tend to specify and recommend a condensate drain from the flue at the lower end to avoid damaging the boilers.

Use this procedure only if you think you have some practice with the construction industry otherwise rely on an expert.

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