Amakhethini eminyango ye-thermal insulation ayizinto ezishisayo nezivimbela umsindo ezilenga emnyango wesakhiwo. Zifaka isendlalelo esizwakalayo sikakotini esiminyene esishunyekwe ngesakhiwo sokuqinisa i-fiber mesh, kanye nongqimba olungaphezulu ngokuvamile olwenziwa{1}}ngezinto ezigugayo ezifana nekhanvasi, isikhumba, noma indwangu ye-Oxford. Zisetshenziswa njengesendlalelo esisodwa noma eziningi, zivimbela ngokuphumelelayo ukulahlekelwa komoya oshisayo nobandayo futhi zinikeze ukuvikeleka komoya. Asetshenziswa kakhulu ezitshalweni zezimboni, ezitolo ezinkulu, eziteshini zezitimela, nakwezinye izindawo. Ahlukaniswa ngokwezicelo: ezezimboni, zokuhlala, nezomphakathi. Eminye imikhiqizo ifaka amaphaneli ekristalu abonisa ngale ukuze kuthuthukiswe ukubonakala.
Amakhethini angaphambili eminyango kakotini ayenziwe ngokuyinhloko ngendwangu, kodwa kamuva avela esikhumbeni, indwangu ye-Oxford, nendwangu evimbela umsindo. Ngemuva kuka-2017, amakhethini eminyango kakotini anamafasitela{2}}aye aduma, ekhuluma nezindawo ezingaboni emehlweni ezindaweni zomphakathi. Kusukela ngo-2022, abakhiqizi bathula imikhiqizo ewugqinsi, esebenza kakhulu evikela ukufudumala nokubanda, kanye{5}}nekhwalithi ephezulu, amakhethini eminyango akhethekile asetshenziswa ezindaweni ezifana neziteshi zesitimela. Okwamanje, izintengo zomkhiqizo ojwayelekile zisuka ku-55 ukuya ku-165 yuan imitha-skwele ngayinye, neminye imikhiqizo eyenziwe{9}}ngamakhanvasi aminyanisayo kuseyiyona ndlela ekhethwayo yezinhlelo zokusebenza zezimboni.