New cylinder & boiler due..... what improvement can I expect?

[Jkb]

Hi,

As the post says.

My installation engineer said he could not guarantee a flow improvement but, it’s highly likely.

I have 3 showers in the house (only 2 used at the same time though). I am having a Worcester 27i system boiler & 300l express pressurised cylinder fitted (Heatrae Sadia). Gas pipe upgraded to 22mm as well as hot & cold pipework to the cylinder upgraded to 22mm. Also a garden tap fitted.

What do you recon? Will I see an improvement?

 

[Harvest Fields]

Good morning, how many litres a minute are you getting out of your taps at the minute? What are the pressures at you incoming stop
Tap? What size pipe is leading to your stop tap?

 

[SimonG]

Would need to see flow rate in litres per minute, static pressure and dynamic pressure.

I would expect these to have already been looked at.

 

[Aire]

What's the reason behind the upgrade? Are you wanting more flow rate?

 

[Riley]

Has your installer mentioned testing supplies? You may also need to upgrade your mains

 

[Jkb]

Getting 16 litres per minute from my tap at the kitchen sink..... don’t know any more than this sorry

 

[Harvest Fields]

Getting 16 litres per minute from my tap at the kitchen sink... don’t know any more than this sorry

Do you mean the Hot tap?

 

[Riley]

I’d ask for the other tests before work commences

 

[Jkb]

Do you mean the Hot tap?

The cold tap in the kitchen

 

[Riley]

But static and dynamic pressure haven’t been tested??

 

[Jkb]

But static and dynamic pressure haven’t been tested??

Not that I know of

 

[ShaunCorbs]

This needs to be done first

 

[Riley]

really does. Could be an expensive mistake if not

 

[Jkb]

What's the reason behind the upgrade? Are you wanting more flow rate?

The boiler is about 15 years old, it was in the house before we moved in. It’s serviced every year but, it’s a noisy bugger and spares are difficult to find

 

[Stu-B]

Is your “installation engineer” a qualified g3 & gsr guy? Or just the local builder?
Get him to test pressures and flow rates and explain how things will work, get him to explain the minimum requirements for unvented cylinders.

Let us know how you get on

 

[Jkb]

Is your “installation engineer” a qualified g3 & gsr guy? Or just the local builder?
Get him to test pressures and flow rates and explain how things will work, get him to explain the minimum requirements for unvented cylinders.

Let us know how you get on

He is a qualified gas engineer. He does need to get in an electrician to connect up the electrical components though.

 

[Riley]

You had better find out if he is G3 qualified then as he can’t work on cylinders unless he is