I should have said:
While the eCat is "warming up," nearly all of the heat that goes in
comes right out. Nothing is stored. The heat is balanced. There is no
SIGNIFICANT endothermic phase, so there is not MUCH storage.
What storage there is, you can measure with confidence. A calorimeter
works just as well to measure a heat deficit (an endothermic reaction)
as excess heat (exothermic). The sensitivity of the same in either
direction.
Also, releasing heat from hot metal with this configuration can never
cause the temperature to rise. It can only make it take longer to cool
down to ambient temperature. When the input power is cut the temperature
must begin falling immediately; it can never go up, the way it did in
the most recent test.
- Jed
