Cov hnab ntim tshuaj insulated, raws li cov khoom siv hluav taws xob ua haujlwm tau zoo, yog siv dav rau khaws cia khoom noj khoom haus thiab dej haus, muab ob qho tib si txias thiab txias. Cov khoom tseem ceeb nyob rau hauv cov khoom insulating sab hauv lub hnab, xws li polyurethane ua npuas, uas muab lub hnab nws cov khoom siv hluav taws xob zoo thermal rwb thaiv tsev. Tsis tas li ntawd, lub hnab ntim yog qhov tseem ceeb rau kev rwb thaiv tsev zoo.
Thaum xaiv lub hnab insulated, cov khoom yuav tsum tau ua kom haum rau cov kev xav tau ntawm cov khoom tau khaws cia. Piv txwv li, rau luv -}}}}}} {{{{{- 2 teev. Rau cov khoom noj uas yuav tsum tau siv cov cua sov ntev dua, xws li kua zaub lossis bento, stainless hlau noj su muaj cov rwb thaiv tsev zoo dua.
Ua ntej siv lub hnab insulated, xyuas kom lub sab nrauv huv si. Nws raug pom zoo kom yaug nrog dej ntws, zam kev siv cov xab npum kom tiv thaiv cov seem. Ua ntej tso zaub mov lossis dej haus, kos lub hnab ntim; Tsuas yog ib qho kev kaw ntom nti ua kom muaj kev pom kev zoo. Ib qho ntxiv, rau cov khoom uas yuav tsum tau khaws cia rau lub hnab ntev, koj tuaj yeem sau cov dej rwb thaiv tsev lossis dej txias kom ncav cuag cov khoom kub uas khaws cov khoom.