Thermometer Sudoku Puzzle (Fun With Sudoku #372)

One nice thing about Thermo Sudoku puzzles and Arrow Sudoku puzzles is that we can create some very nice designs using Thermometers and Arrows. I have tried creating some designs in these Sudoku types. Here is one such Thermo Sudoku with Smiley Face which I am publishing in the Fun With Sudoku Series as the 372nd Sudoku Puzzle in this Series.
My time to solve this Thermo Sudoku puzzle is 8.49 minutes. This is a very interesting Thermo Sudoku which starts very fast and then it will make you think to proceed :). The theme of this Thermo Sudoku is Smiley Face with Face Open.

Rules of Thermometer Sudoku Puzzle

Standard Sudoku Rules apply. Additionally, some thermometer shapes are in the grid, and digits must be strictly increasing from the round bulb to the flat end.

Thermometer Sudoku Puzzle (Fun With Sudoku #372)

The answer to this Thermo Sudoku puzzle can be viewed by clicking on the button. Please try your best to solve this Sudoku puzzle before looking at the answer.

This Thermometer Sudoku Puzzles I am publishing as the #372nd Sudoku puzzle in the Fun With Sudoku Series. Here are the next and previous Sudoku puzzles published in this series.

Previous Sudoku Puzzle is Inequality Sudoku Puzzles (Fun With Sudoku #370, #371)

The next Sudoku Puzzle is Anti-Diagonal Sudoku (Fun With Sudoku #1)