Given that the furnace is a structure in which thermal processes occur, there are some limitations in the choice of brick for masonry. For example, you can not use brick burned or unburnt. The same applies to its variety - silicate samples are not applied( only in certain cases and in certain places).
However, the furnace itself consists of various structural elements, and a high-quality refractory brick is quite expensive. This is the main reason why sellers so obsessively recommend it - the revenue will be more. But a normally thinking person has a completely natural question: is it reasonable to use only 1 type of brick for bricklaying the stove, if it is possible to economically save, given the different degree of heating of the individual parts of the stove? Here with this and understand in more detail.
By the way, even among professional ovens there are different opinions on this issue. But if you summarize all the information, then you can make certain conclusions.
Fireclay( fireproof) .Disadvantages - high price, low thermal conductivity. However, it is recommended for the laying of fireboxes, as well as in the rooms where the owners appear from time to time and, consequently, the furnace does not "work" constantly.
Quartz. Has a limitation in use, as it does not "like" contact with alkalis, lime and metal oxides.
How to check the quality of
It was noted above that a brick must pass not just heat treatment but be burned( without attachments to this adjective "over-" or "under-"), that is normal. How is this determined?
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By color. If at least one of the faces looks yellowish, violet or pale pink shades - this is a clear sign of second-rate products. The color of the qualitative sample is uniform red; - In appearance. Excess temperature treatment leads to the reflow of the ribs. In addition, the edges should not have even the smallest shells or chips, not to mention the signs of a projected crack.
- By the sound. It is enough to knock something on the product. Sound( "clean") sound - you can safely buy .But if he is deaf, then it is better to look for the goods in another place.
- By coincidence of dimensions. To check whether the product meets the standards or is "samopal", it is enough to put several samples side by side. The difference in linear dimensions is a sign of forgery.
Which bricks to choose
For the furnace, the best option is a fire-resistant chamotte( it is distinguished by a cream shade, it is indicated on the price tags as " SHA " or " SB ").The chamber built of it is capable of withstanding very high temperatures( up to 1,800 ° C), therefore various materials( coal, briquettes, wood and a number of others) can be used as fuel.
Well suited Vitebsk. But its shortcoming is an unpresentable appearance. Therefore, you have to deal with plastering the surface. Borovichsky also has high characteristics, but does not enjoy popularity because of the numerous marriages, which increases the amount of waste and increases the total costs for the construction of the stove. The Baltic is most often purchased for laying a fireplace.
For the chimney you need a brick of the category "frost-resistant".If the laying is carried out in several rows, then for the external one, one can use a slotted or "holey" one.
In order to reduce the cost of building a master advise to pay attention to the red porous. Its "minus" is in insufficient strength. But this is easily eliminated by masonry reinforcement.
Dimensions
Given the large range, the number of manufacturers and the inconsistency between the standards of the Russian Federation and the EU, it is pointless to list all the options. The optimal parameters of the brick for laying the stoves( taking into account the high requirements for the thickness of the seam) is the following ratio( in "mm") - 250 x 120 x 65 .By the way, it is these samples that are mainly sent to the market.
Product cost
* All prices are approximate, applied to the Moscow region
| Brick name | Price( rub / piece) |
| Vitebsk | from 19.70 |
| Borovichsky | from 16,50 |
| Baltic | from 62,30 |
| ShA | from 32,95 |
| SB | from 39,55 |
Useful advices
Before you buy a brick, you need to arrange "order", that is, the layout of the masonry. Then it becomes clear how many and which samples will be needed.
Whatever the quality of the brick, but the percentage of marriage or combat during its transportation can not be excluded. Consequently, you need to buy a lot with a margin of about + 10%.
Read also about the order of the solution for masonry stoves.
