Normal Sudoku rules apply. Digits strictly increase along a thermometer from the bulb to the tip. For the purposes of this puzzle, a thermometer must be at least 3 cells long and can only span cells orthogonally. All thermometers are given.
SudokuPad Puzzle Link

Solution code: row 4
Solved by mbumbee, Cascade, welgen, clock, PinkNickels, Uhu, Rollo, micjo, metacom, jalebc, milxqueen, cmigas, mjozska1985, idanz, sze, Supertaster, Vaurien, achim-t, CaseyM, NEWS, dalyons, Pairot, thomamas, ... Snaques, gdier, MtodaP, OJPS, peep50183, Thibaa, Javier Rebottaro, varbrad, Jensa, Hyoryn, Dez256, Enkuryo, mattnburris, Apostolus, MThuolongguo, naggy, SKORP17, patolucatis, atron, 5381
Comments
today, 12:01 by shanzhai
interesting rule
today, 06:24 by Pairot
This was such an interesting restriction, great puzzle!
Last changed today, 00:29yesterday, 20:55 by PinkNickels
Somehow managed 39 seconds. Thanks for sharing,
Reply: Thanks for solving!
Last changed today, 00:35yesterday, 20:17 by mbumbee
I solved the puzzle but I don't know how hot it is, please advise.
Reply: I was sure there must be thermostat of some kind but I can't find one...