Most UK unvented cylinders are supplied with a 25 yr limited warranty on the shell.
The components around it normally carry a shorter warranty but the expensive bit is normally stainless and is expected to last many years.
I expect you are comparing a single coat glass lined mild steel rubbish spec unit in France.
The components around it normally carry a shorter warranty but the expensive bit is normally stainless and is expected to last many years.
I expect you are comparing a single coat glass lined mild steel rubbish spec unit in France.