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Guide to choosing and installing a chimney: Step by step

When it comes to installing a chimney, it can seem like a daunting task. But with the right guidance and the right materials, it’s not an impossible task at all. In this guide, we will go through the steps to install a Vento chimney and explain what the different components are used for.

Introduction

Before we begin, it is important to note that the installation of a chimney must comply with local regulations, and it is always a good idea to consult your local chimney sweep, as he must approve the chimney before you can use it. Many skilled Vento chimney dealers offer free advice and tailored solutions for your needs, so don’t hesitate to contact one of our dealers if you have any questions.

Setting up your wood-burning stove or fireplace

Before you start installing your chimney, it is important that you make sure that your wood-burning stove is set up correctly.

Here you need to think about:

• The substrate on which the wood-burning stove is to be installed must be able to support the weight of both the wood-burning stove and the chimney. The substrate must not be able to burn – e.g. tiles, floor plates, concrete or the like.
• Ensure that distances to flammable materials can be observed. Both around the wood-burning stove, but also at the entire height of the chimney.
• Check that the manufacturer’s and the authorities’ requirements for the installation of the fireplace and chimney are met. Any installation with a fireplace and chimney must be carried out in accordance with the building regulations in force at the point of installation.
• Be sure to place the fireplace so that the chimney can be led up without having to change/cut posts, beams and rafters in the walls or ceiling. This can lead to a weakening of the building structure. Vento chimneys do not have to be erected in shafts.

Planning

The first step in any installation is to plan. You need to decide where your chimney will be placed and whether you want a top or back exit on your fireplace or stove. This will also help you determine which components you need for your installation.

Top exit, vertical chimney up through ceiling and roof.:

When you choose your chimney to have a top outlet, your flue pipe comes out of the top of the stove. Thus, the chimney runs vertically up and out through the ceiling and roof.

In the case of a closed storey penetration, the building insulation is cut away and insulated against the chimney with ordinary building insulation (glass/stone wool). For insulation thicknesses above 240 mm, an air space of 50 mm is left around the chimney from the insulation collar to the top of the insulation layer.
When you need to cut the hole in the roof, mark the center again, using a plumb line or line laser. You should also be aware of the rules on distance to flammables. Roof tiles or roof sheets are removed to the extent necessary.

Rear exit, horizontal connection with wall grommet:

Here, the chimney behind goes out of your wood-burning stove, and directly through the outer wall, after which it breaks 90 degrees and goes up along the outer wall, and up over the roof.

Outer wall of combustible material

If your wall is made of combustible material, cut a hole in accordance with the building regulations. When your wood-burning stove is in place, measure the height of the smoke outlet and mark it on the wall. The wall hole is cut/cut so large that the element can go through freely. Once the element is in place, it can be installed with an insulation collar around the insulated section, and a cover around the cut-out can be made with ceiling collars on both sides.

The minimum distance to flammable material is 50 mm.
Be aware of the greater distance requirement for any uninsulated connection pipes.

Penetration in cavity wall

You mark the hole in the same way as I have described above. The flue pipe is cut freely and it is mounted with masonry bushings outside and inside. On the outside, the flue pipe is led to the transition on the insulated T-piece.
Inside, cover around the flue with a decorative rosette.

Chimney support

On the outside of the wall, the chimney element or transition must be connected to a 90 gr. .

The T-piece should stand downwards either on a wall bracket or a floor bracket, fixed or adjustable. Under the console, there must be space for the soot bowl to be removed before emptying.

Chimney along wall

From the top of the T-piece, insulated chimney elements are installed in height. For every 4 mtr. a wall anchorage is installed, which, like the wall console, is available with different distances between the chimney and the
wall, or you can use our extension for wall anchoring. The chimney may not exceed 1.5 m past the top fastener. Very high chimneys must be relieved with support pipes or with guy ropes and wire.

The top of your chimney

The chimney must always be finished with a cap and possibly a jackdaw.

Chimney Test

After you have installed your chimney, you must contact your local chimney sweep who will ensure that everything is OK and approve the installation before you can start using it. Here you will find a list of local chimney sweeps.

Enjoy Your Fireplace or Wood-burning Stove!

Now that your chimney has been installed and tested, it’s time to enjoy your fireplace or wood-burning stove! With a properly installed Vento chimney, you can be sure that you are getting the most out of your heat source.

Installing a chimney can seem like a big task, but with the right guidance and materials, it’s actually a task you can handle yourself. We hope this guide has provided you with the information you need to install your Vento chimney safely and efficiently. Remember that the many dealers of Vento Chimney are always ready to help if you have questions or need advice and not least if you want a professional chimney fitter to do all the work.

Clitoris:

• Vento Nordic – Chimneys
• The Building Act