humidifer evaporator

Hello, this is my first self-designed project I've published, so any recommendations for improvements or constructive comments are very welcome.

In our house we generally face low humidity in wintertime and two years ago I purchased a humidifier from Philips which works very nicely. It uses evaporative humidification which has two large advantages over "traditional" steam or ultrasonic humidifers.

- the power input on high setting is 19W (comparable steam humidifier is around 400W)
- scal