No its not a joke .

[Harvest Fields]

Zone it. Pump on each zone.

 

[Welder]

Personally, Id start with shutting all rads down but one of the dodgy ones (opened up fully). See then if anything happens and try bleeding to see what emerges. Id then try closing the bypass, if there is one, to try to get it to force its way - turn pump up full pelt and bleed again.

If that doesn't get something through there is def a prob and you're busy for the next 5 years. If it does something, do same with other two till the crap is distributed.

You will also prob find you'll disturb a load a junk if its not been flushed recently. That then, as you well know, means **** loads more work...

Come on Town. If you need something doing, ask a busy man!!

EDIT: Bu66er. Missed the other posts

 

[townfanjon]

Zone it. Pump on each zone.

Erm a maybe , I will work out KW loading and I have a idea its running through 22mm zone valves , but not sure on how much they can cope with

 

[Chalked]

Fit a cheap low loss header to the boiler and a suitably sized pump,to the rads. Probably getting lots of restriction through the boiler.
Give it a good flush while your on.

 

[Chalked]

Erm a maybe , I will work out KW loading and I have a idea its running through 22mm zone valves , but not sure on how much they can cope with

55,000 through a 22mm zone valve.

 

[Harvest Fields]

Erm a maybe , I will work out KW loading and I have a idea its running through 22mm zone valves , but not sure on how much they can cope with

Should be 28mm with that many rads, shouldn’t it?

 

[townfanjon]

Fit a cheap low loss header to the boiler and a suitably sized pump,to the rads. Probably getting lots of restriction through the boiler.
Give it a good flush while your on.

Boilers too old mate , not worth the work and expence , think its about 9 ish years . Like most customers hes after a quick fix for this winter , maybe a new one next summer

 

[SimonG]

Not had three rads pipe up off all flows or all returns?

Trying to think out the box.

 

[Ben-gee]

Take off one dodgy rad and replace with just straight pipe, if that gets hot flush rad or replace it with new if that doesn’t work.

 

[townfanjon]

Should be 28mm with that many rads, shouldn’t it?

Yep think so , apparently BG put this lot in