Lousy quality and extremely dangerous!

After me the thing is already 2 times "explodes", I followed the issue.
The plate with the large hole at the top is glued on the container with the ethanol, this adhesive has risen - or was never performed well. Thus, the ethanol in the tank seems to get around it, which then ignited by the heat and the container with the ethanol is suddenly "lifted" by the inflammation and the burning ethanol injected through the room.

Incomprehensible that someone sell "must".

Should not buy unless you feel like tinkering you. I then recommend also equal a fire blanket dazuzubestellen ...
Quality matches the price.

The screw with the base plate by the way is also true. Since the thread is greater than the thickness of the sheet. Only "at the end" of the screw engages the screw then.
Apart from the glass plates clanking in the metal frame, because that are just pure pushed and the frame is significantly larger than the plates. But you can also even "fix" with a window sealing strip ...