A Mixed Bag Of Rewards Today
Potions, SPS, Merits and Cards, just about every type of reward short of cards in the chests today. These are Silver II rewards and as far as I can tell, there's no difference between Silver I and Silver III when it comes to rewards in the chests.
There are still heatsmiths and conjurers in the rewards chests these days but for how much longer, that remains to be seen. Will be interesting to see their value once there are no more of them being printed.
Got promoted to Silver I and so far it is not the worst in terms of difficulty. The competition must have moved on to Gold already. Today it is the Defend focus which is good for the Earth and Life Splinters with some good Shield cards. There's also the armorsmith who can repair armor and although I don't use him often, he can be quite useful when there is those non-magic or weak magic battles.
Apart from getting these heats, I see no real value to them on the field of play and they have no other value as well. However, there's no harm in accumulating.
By heats do you mean the merits? Yeah there is not much use for them, really.