Through walls? through the roof?

Through walls?

through the roof?

Which one is the best?

There is no correct answer, but each has advantages and disadvantages.

Let's start with wall penetration


Construction is easy if you prepare scaffolding → Easy to do DIY construction

low construction cost

Less damage to buildings

Even if the construction is bad, there is almost no worry about rain leakage


Poor draft (smoke removal) due to horizontal pulling

Double chimneys with L pipes, T pipe caps, support bases, etc. are often used, so material costs are high.

high heat loss

It is difficult to clean the chimney cap as it protrudes outside the roof

not aesthetically clean

On the other hand, the roof penetration


Since the chimney is straight, the draft (smoke removal) is good.

Since the chimney passes through the interior, more heat is released into the interior, resulting in less heat loss.

The indoor part can also be made into a single chimney pipe to some extent, so the material cost is reduced.

Penetrating the room on the second floor will also warm the room

Clean appearance

Often easy to clean from the top of the roof (except on steeply pitched roofs)


If the construction is bad, there is a risk of rain leakage → DIY construction is difficult

The existence of the chimney becomes an obstacle when penetrating the room on the second floor.

high construction cost

When cleaning from the wood stove side, curing is necessary so that soot does not scatter indoors

Both have their pros and cons.

I think it would be nice if you could think about installing a chimney in a way that suits you.

Even if the method of installing a wood stove is different, there is no difference in the fact that a life with a fire will enrich our daily life.

Yama no Entotsuya is an online shop, and nearly 90% of customers ask for DIY installation or installation by a carpenter, but it is also possible to install a wood stove.

The remaining 10% are purchased by chimney construction shops and construction shops that do not have conventional shops.

At Yamano Entotsuya, we will visit you for the installation together with an experienced carpenter.

We also support DIY installations.

If you have any questions or do not understand, please feel free to contact us by email or LINE .

By the way, the chimney of our stove was of course DIY.

At first it was a wall of a single chimney.

The horizontal pull was about 2m and the smoke pull was very bad.

I quit after one season.

Next, I made a double chimney using a plated spiral duct and made a double chimney with a roof.

And in the 3rd year, it broke from a typhoon where it rusted beautifully.

The galvanization melted from the heat, making it the same as a normal iron chimney, and the soot was acidic, so rust progressed faster than I expected.

The third one was a stainless steel welded single chimney made by Homma Seisakusho.

I've been using this one without any problems.

I think I used it for 4-5 years.

And at the end, I replaced it with an insulated double chimney on sale at the mountain chimney shop!

It was a long way to go until I found something good because the cost was high because I went to various places.

Also thank you.