New Central heating but problems, Please help

[Harvest Fields]

I am being advised by the guy who installed the system an accumulator will give me the max pressure the boiler can cope as effectively it's a storage of water so I can fill 2 baths at max flow.

In my opinion a combi will never run a bath and a shower at full rate together let alone 2 baths.

 

[ShaunCorbs]

Think someone's been sold a dream

 

[Dale Sanders]

We all know a combi can't do this alone.
But what about a accumulator tank

 

[ShaunCorbs]

We all know a combi can't do this alone.
But what about a accumulator tank

No as the combi won't do over 14lpm

 

[Dale Sanders]

Yes I am aware of that but currently it's doing 10lpm so any more will be an advantage

 

[ShaunCorbs]

Yes I am aware of that but currently it's doing 10lpm so any more will be an advantage

I would do 22mm to the boiler that should sort it unless your mains flow is 10lpm

Any ISO valves on the hot pipework that arnt full bore get them changed as well

 

[Dale Sanders]

Mains flow is 14lpm.

Do you think the 15mm is restricting it

 

[ShaunCorbs]

yea

 

[Dale Sanders]

Why don't you think an accumulator will benefit my system? Why won't it work

 

[ShaunCorbs]

Why don't you think an accumulator will benefit my system? Why won't it work

because you will have 10lpm coming out, they dont increase the flow