Unvented .

[quality]

Best cylinders by experience please not just the cheapest.

 

[townfanjon]

Ultrasteel ( tribune ) , Center brand , RM , in that order , I M O of course

 

[Last Plumber]

Vaillant............

 

[SimonG]

RM for me, avoid warmflow, they need compression connectors for all the connections.

 

[Scott_D]

I like Joule
Never had to call any cylinder manufacturer though, that’s going to separate the good and bad

 

[king of pipes]

Joule for me well put together

 

[ShaunCorbs]

Gledhill or joule for me

 

[Harvest Fields]

Gledhill are decent mate. Fitted a few, no issues.

 

[Chalked]

Cheap and good RM.
budget no problem. ACV