u/Aware-Cartographer-2

For context:

I have a homebrew ttrpg character that can shapeshift into a form that radiates a good bit of heat from its body (very fire-based). He was recently tested on Portal 2 style by one of the servants of the villain and they put him into a rather large room to accommodate the size of his shapeshifted form. One of the observing scientist NPCs said that the temperature of the room was raised by 3C and my DM later confirmed that this was stated after he was in the room for only 5 minutes.

So just for funsies i got curious as to how much energy he would have needed to produce to achieve this using the equation Q=mc(DeltaT).

I assumed the room was 30mx30mx20m, at room temp (i used 23C to hit a nice middle spot since room temp is about 20C-25C but it didnt really matter since we already know the change in temp), and was filled with dry air at a constant volume at sea level.

m = 25,050kg
c = 0.718kJ/(kg·K)
DeltaT = 3C

So the MINIMUM amount of energy he would have needed to produce was 53,957.7 Joules which means he would have been producing 10,791.54 Joules per minute or 179.859 Joules per second.

KNOWING THIS, is it possible to determine his exact or approximate temperature from how much energy he was producing?