Thermal roj rhaub rau cov xovxwm kub yog ib qho tshiab, muaj kev nyab xeeb, kev ua haujlwm siab thiab kev txuag hluav taws xob, tsis tshua muaj siab (nyob rau hauv ib txwm siab lossis qis qis) thiab tuaj yeem muab cov cua kub kub lub zog ntawm lub qhov cub tshwj xeeb, nrog cov roj hloov hluav taws xob ua cov khoom siv hluav taws xob, los ntawm lub tshav kub twj tso kua mis kom circulate lub tshav kub cab kuj, lub tshav kub hloov mus rau lub tshav kub khoom.
Lub tshuab hluav taws xob hluav taws xob hloov hluav taws xob hloov hluav taws xob yog tsim los ntawm hluav taws xob hluav taws xob tawg, hluav taws xob hluav taws xob hluav taws xob, hluav taws xob hloov hluav taws xob, hluav taws xob hloov hluav taws xob (yog tias muaj), ntawm qhov chaw tawg-pov thawj lub thawv, roj kub twj tso kua mis, lub tank nthuav dav, thiab lwm yam, uas tuaj yeem ua tau. tsuas yog siv los ntawm kev sib txuas rau cov khoom siv hluav taws xob, kev xa tawm thiab xa tawm cov kav dej nruab nrab thiab qee qhov hluav taws xob cuam tshuam.