Hi and good morning, The dimensions are probably not correct. According to the manufacturer, the dimensions are as follows: Inside dimension (W) x (H) x (D) mm 306.6 x 208.2 x 306.6 Outside dimension (W) X (H) x (D) mm 439.5 x 257.8 x 358.5 https://sharphome.eu/en/sharp/cooking/r242inw/ And yes, it is 20 litres. You have to be careful though, I got a unit with a German power plug at the time, which I didn't think was so great. However, an adapter was included.....

Mine had a Schuko plug on it and a fixed adapter was in the box. I cut the cable and screwed a CH plug onto it. CHF 1.50 at the Hobby Centre, 10 minutes' work.

Yes, this is possible. Seconds of 10 steps at least. W power should also be possible.

European plug but an adapter also came in the box. :-)