Izifudumezi ze-tubula ezigqityiweyo ziphezulu kunezifudumezi ze-tubular kuba amaphiko anyusa kakhulu indawo ephezulu, avumela ukuhanjiswa kobushushu ngokukhawuleza emoyeni kwaye avumele ukubeka amandla angaphezulu kwiindawo ezixineneyo-ezinje ngemigudu yomoya enyanzelwayo, ezomisi, ii-oveni kunye nezichasi zebhanki zomthwalo ezikhokelela kubushushu obuphantsi komhlaba.Zenziwe ngezinto zokufudumala ze-tubular kwaye zixhotyiswe nge-electro galvanized steel fins.Amaphiko aqhubekayo abotshelelwe ngoomatshini aqinisekisa ukuhanjiswa kobushushu okugqwesileyo kwaye anceda ukuthintela ukungcangcazela kwe-fin kwizantya zomoya eziphezulu.Njengoko indawo yomphezulu isonyuka kwaye ukuhanjiswa kobushushu kuphuculwa ngenxa yamaphiko, kukhokelela kubushushu obuphantsi besheath kunye nokwandisa ubomi bento.