Nrog kev saib xyuas kom zoo, cov cement cav tuaj yeem kav ntev xyoo. Lawv tsis khaws cov creosote zoo li ntoo, yog li koj tsis tas yuav txhawj txog kev tu thaum lub caij so.
Txhua lub caij ntuj sov, kom koj lub qhov cub kuaj xyuas los ntawm ib tus kws tshaj lij txog kev puas tsuaj ua ntej teeb pom kev zoo dua tom qab nws tau dormant. Yog tias koj ntes tau teeb meem nrog koj lub qhov cub thaum ntxov, kho lawv ua ntej lawv dhau los ua teeb meem loj.
Ib qho tseem ceeb uas yuav tsum tau saib xyuas yog kev tawg ntawm cov cement cav. Cov kab nrib pleb tso cai rau dej thiab huab cua nkag mus rau hauv lub chimney system, uas tuaj yeem ua rau tawg ntau dua. Cov kab nrib pleb no kuj ua rau muaj hluav taws kub nyhiab, yog li nws tseem ceeb heev uas yuav tsum tau nrog lawv sai li sai tau.
Yog tias koj muaj lub qhov cub me me, cov cement gas cav tsis yog qhov kev xaiv zoo tshaj plaws. Lawv siv ntau qhov chaw thiab tej zaum yuav hnyav dhau rau koj lub chimney system.
