Temperature curve

Ah, finally it is a comfy 75ºF. I got home around 7pm at 55º, and it's now 12am at 75º, so that's Δ20ºF/5hr = 4º/hr = 1º/15min ... and I could now go on and look at my 2 heaters' wattages and calculate the power that went into the room temperature and figure out how lossy my bedroom is, but I don't feel like it. Yay math! Yay laziness! If anyone else feels like it, go ahead and I'll check your results. :-P