Is the width of the fireplace crucial? Well, this one is 40 centimetres wide. It only comes in one colour; black.
From Amazon
Warmlite WL45056BF 2kw Curved Glass LED Flame Effect Electric Wall Mounted or Freestanding Fireplace with Remote Control, Black
Comet
Warmlite 22" 2kw Curved Glass LED Fireplace
Wayfair
Warmlite Curved Glass LED Flame Effect Fireplace, Wall Mounted or Freestanding with Remote, 2000W