K
But the fireplace itself should be fireproof bricks with fireproof mortar to protect the surrounding material.
 
K
Stefan N said:
In my time, what was stated in SBN applied:

A chimney wall is accepted built with solid brick 250xl20x62 according to SIS 2104

Nowadays it is stated in Hus AMA.
There is no match for SIS 2104, but I will check in AMA when I'm back at work to see what it says. I will also ask my neighbor who is a chimney sweep 😊
 
ktm250 said:
But the actual fireplace itself should be made of fireproof bricks with fireproof mortar to protect the surrounding materials.
The thing is, nowadays "no one" builds a typical open fireplace.
Instead, you build a surround for a fireplace insert, which is actually a complete stove hidden inside an open-fireplace-like surround.

So how should the fireplace insert be installed?
I can imagine that a few plasterboards might be enough, but it should be clear from the installation instructions.
 
Hemmakatten
Well, we have a masonry fireplace for cozy lighting. Built with bricks all the way up. Double-walled. Even the chimney is plastered. Love to see the fire, hear it crackle and smell the aroma.
And in the lakeside cabin, there's also a masonry fireplace with two flues, one for the sauna and one for the fireplace where we have an insert. The chimney sweep who approved the nails said it had been a long time since he had seen properly masoned brick fireplaces. He called them the Rolls-Royce of fireplaces.
 
Hemmakatten said:
Yes, we have a brick open fireplace for cozy lighting...
Good, note that I wrote nowadays "no one" builds a regular open fireplace, with no one in quotation marks. Which means almost no one as you understand.

The reason for not building conventional open fireplaces is because they have a disastrously poor efficiency. You usually want to get some heat exchange from the wood, not just light and "coziness."

But congratulations on your cozy fireplace!

Question:
How is a double-walled open fireplace built in brick constructed?
What is the function of the "double-walled" feature?
 
Fireplaces with pipes straight out have dreadful efficiency. They became completely outdated already in the late 1800s. More than 100 years later, we should let them become a dismal parenthesis in history. They are associated with a housing standard with constant snow on the floor inside the door and ice in the water bucket in the mornings.

A proper open fireplace with circulation channels, on the other hand, can provide a fair amount of heat. Such fireplaces are built with brick and clay mortar, and it's quite a science to get the draft in the circulation channels, plus the person tending the fire must know how to adjust both dampers correctly. Unfortunately, not many people today are familiar with this type, but I know of at least two masons who build them according to the traditional model.
 
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Resuming an old thread.
I plan to build a pizza oven using leca blocks with a base of fireproof brick.
There were thoughts on this earlier in the thread, what are the current thoughts?
The pizza oven will be outdoors, are there any disadvantages with this setup?
 
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