While Heat may be great and all for the lower players still building up their equipment, what purpose does it serve for those with fully-leveled 4* or 5* gear? It's just going to waste for these players.
I've come up with a couple of ideas that would make Heat a once-agained valued resource for players with fully-leveled gear.
1. Heat storage: Heat could be stored in a reserve tank similar to that of the Mist tank, and once full it could be sold in the Auction House to players who could use it.
2. Heat conversion: Same concept, except it could be traded in to NPC's for extra crowns, materials, or possibly even energy.
Thoughts?
the chief issue with 1. is that heat leveling is one of the reasons people go through the clockworks in order to level their gear whether they like to or not
2. the issue is that selling excess heat for crowns is inflation of the energy market since more crowns are being pumped into the economy, materials would become more worthless and energy would undercut OOO's profit especially if it's converted to CE (in that case CE would be devalued)