House & Home Physics
Insulation Heat Loss vs R-Value
Q = A·ΔT / R

Conductive heat loss through a wall is inversely proportional to its R-value — doubling insulation halves the loss, for any indoor-outdoor temperature difference.
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).