Hot water cylinder recognition - is it a pressurised system? Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[min1300]

Hi all, about to buy a new house and discovered the attached hot water cylinder.
Unfortunately i can't get access to confirm spec - but in the interests of progression and what we can and can't buy, is there any chance any one can recognise whether it is a pressurised invented system????
Thanks

Min1300