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USEFUL RECOMMENDATIONS FOR CHIMNEY EXPLOITATION

To re­pla­ce an old he­a­ting boi­ler or to ins­tall a new one first of all you will have to as­sess tem­pe­ra­tu­re and draught in a chim­ney. Po­wer of draught should sup­press the re­sis­tan­ce of a he­a­ting boi­ler, con­nec­tor and ot­her ad­di­tio­nal­ly at­ta­ched de­vi­ces. The dec­re­a­se of tem­pe­ra­tu­re of com­bus­tion ma­te­rials re­mo­ved by a he­a­ting boi­ler le­ads to the po­orer draught in­si­de the chim­ney. The­re­fo­re, it is ne­ces­sa­ry to main­tain the re­qui­red chim­ney draft even at the lo­wer tem­pe­ra­tu­re of ex­haust gas. In this ca­se the chim­ney should ha­ve suf­fi­cient ther­mo iso­la­tion and op­ti­mal dia­me­ter and height.

Qualified specialists recommend mounting the flue li­ners into the brick-build and concrete chimneys for all kind of boi­lers heated by li­quid, so­lid fu­el and gas and ha­ve higher ope­ra­tion co­ef­fi­cient then 85%.

Condensation point
The con­den­sa­tion point of wa­ter ste­am that produces in combustion products, va­ries depending on fu­el type. It de­pends on CO₂­ content in the ex­haust gas. When dif­fe­rent types of fu­el (li­quid, so­lid, gas) are used for heating, tem­pe­ra­tu­re of ex­haust combustion products on the walls of a chim­ney should not be lo­wer than the con­den­sa­tion point, i.e. 56°C. At lo­wer tem­pe­ra­tu­re, hu­mi­di­ty of com­bus­tion ma­te­rials con­den­ses on the walls of brick-build chimney and is ab­sor­bed in­to them, which le­ads to the so­a­king of a chim­ney and in­ten­si­ve de­struc­tion of its in­ner part. It is sup­po­sed that such a chim­ney could be completely rui­ned wit­hin 1-3 years.According to dif­fe­rent ty­pes of fu­el and boi­lers, the tem­pe­ra­tu­re of exhaust com­bus­tion ma­te­rials should be main­tai­ned at 80-250°C.

Chimney protection against aggressive condensate
„Vil­pra“ was the pio­ne­e­ring com­pa­ny in Lithuania wor­king in the field of brick-build chim­ney pro­tec­tion from aggressive condensate. Ac­cor­ding to the pro­fes­sio­nals of the com­pa­ny, when re­const­ruc­ting or re­pla­cing an old sys­tem by a new one, an exis­ting chim­ney should be ad­jus­ted to a mo­dern boi­ler. It could be done by installing re­le­vant si­ze of round, oval or flexible li­ner in the chim­ney, and if the chim­ney is ab­sent or it‘s diameter is un­sui­tab­le to ope­ra­te with chosen boiler, our company specialists will plan, manufacture and mount double wall chim­neys. They are used to re­mo­ve com­bus­tion ma­te­rials and for the at­ta­ched air chan­nels both in the individual houses, public buildings and the in­dust­rial boi­ler plants.

Reccomendations to ensure chimney durability and fire resistance
In order to ensure that single wall liners or double wall chimneys will serve many years and won’t cause any troubles, "Vilpra" is offering “SADPAL” for burning out soot and other tar sediments in furnaces and chimney ducts to all the customers who are using solid fuel boilers or have fireplaces in their houses. If used on regular basis, “SADPAL” reduces coal consumption, decreases emission of CO2 and NO2 into the atmosphere, increases heating capacity and decreases the risk of soot igniting in the chimney ducts. At the same time, it reduces corrosion of steal construction elements in grate surfaces and boilers. It releases no odour during combustion, is non-flammable, in-explosive and non-toxic. Due to regular use of “SADPAL” chimney durability is secured and soot fire risk is decreased.
Vitiated chimneys are dangerous as a fire cause in building exploitation!

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