House & Home Physics
Heat-Pump COP vs Outdoor Temp
COP = T_h / (T_h − T_c)
A heat pump's Carnot ceiling: the smaller the indoor-outdoor gap, the more heat it moves per unit of electricity — efficiency collapses on the coldest days.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).