Logic Masters Deutschland e.V.

This one should be nowhere near as monstrous as my last puzzle and I hope you enjoy, and this was a fitting puzzle at the time I created this (I think it was near Valentine's Day).

Rules:

-Normal sudoku rules apply.
-Adjacent digits along a red line must sum to a power of 2 (2, 4, 8 or 16). Digits may repeat along lines as long as other rules allow it.
-Digits along a thermo must increase from the bulb end.
-Thermos and the red lines only intersect (no complete overlap).

Links:

F-Puzzles
CTC