Only glass is on the front ken.ive just got back now been to buy a 2ft vivarium.
I've seen 3ft and 4ft vivariums for sale but my thoughts are the bigger it is they might start using 1 corner for toilet duty which 1 don't want.
An another benefit is the oil boiler is in the shed I've removed the front panel and removed the boiler jacket to reveal a very hot metal panel on the front of the boiler.it acts like a small radiator in the shed.
I will post pics tomorrow when its finished.