Harsashi heaters ne mai kyau zabi don amfani a matsayin conductive tushen ga dumama m karfe faranti, tubalan da kuma mutu ko a matsayin convective zafi tushen don amfani a iri-iri na ruwa da gas. Za a iya amfani da dumama dumama a cikin yanayi mara kyau tare da jagororin ƙira masu dacewa.