Blue Portal Name: BPRI
Orange Portal Name: BPRO
Breaking Point: 80 Pressure or 1000 Temp
Uses: In a destroyable city, you could have portals all over the place but after it (most of it) gets reduced to lava, there arent random portals everywere.
Perhaps when they are first created, changing their temperature sets their channel without melting them. Afterwards, perhaps after they have been sparked, they will change so that temperature no longer affects their channel, and can melt if they get too hot like in the suggestion.
Maybe their channel could be set as the TMP value when they are melted(not to be confused as temp)