External pump??

[audi321]

Hi all, I have an Ideal Vogue c40 boiler and it's been working fine until I added 3 more radiators to the end of the line (big ones!).

Now these radiators are a very long way from the boiler and just don't get warm no matter how much I turn the others down with the lockshield. I can't find a maximum pipe run in the Vogue manual but I must be close or over it.

Can I add an external pump to the system to boost it? If so, what do you recommend and do I install it on the flow or return (or does it matter?).

Thanks for any advice.

 

[ianmcd]

nope not that easy you need a pro to balance the whole system

 

[muggles]

Do the new radiators get hot if you turn all the old ones off completely?

 

[audi321]

Yes they do.

 

[ianmcd]

Yes they do.

Then you have a balancing issue

 

[audi321]

Ah ok thanks. Just checked again and with all the others off, the last one gets warm on the flow pipe but the return is luke warm at best.

 

[D_Hailsham]

Hi all, I have an Ideal Vogue c40 boiler and it's been working fine until I added 3 more radiators to the end of the line (big ones!).

So there is more water flowing through the original pipes. Have they been upsized (if necessary) to take account of this?
What temperature differential are you using when balancing?