Brazed farantin zafi Exchanger wani nau'i ne na rarrabuwa zafi musayar.Wani sabon nau'i ne na musayar zafi mai inganci wanda aka yi ta hanyar tara jerin zanen ƙarfe tare da wani nau'in corrugated da brazing a cikin tanderu.Ana samar da tashoshi na sirara na rectangular tsakanin faranti daban-daban, kuma ana yin musayar zafi ta cikin faranti.