How to???

[helpsy]

How to connect a combi to an unvented cylinder?

 

[SimonG]

Combi hot to kitchen sink then t off heating circuit with all the controls wired up.

 

[AWheating]

as above, one tap to combi and connect up as a system boiler via s plan.

 

[Ermintrude]

S CLUB. There ain't no party like a S Plan party

 

[Matt06]

Why would you want to? , why not just install a system boiler and cylinder ?

 

[stevetheplumber]

combis are usually cheaper to buy than similar system boilers also it gives one outlet thats not reliant on the cylinder being heated ive often done it with either the kitchen or the ensuite on the combi which works for families where one works and leaves early without the need to heat the cylinder till later
the other scenario is existing combi in good condition growing family means its not enough to run 2 bathrooms add a small unvented for one and other on combi