Some info required for radiators that aren't performing so well!

[ecowarm]

15/60?

 

[shorticus]

what about the temperature of the flow and return?

 

[shorticus]

Definitely more then a 100litre system mate, cos the flow & return pipe lines from boiler to the last radiator is atleast 23metres from the top of my mind

just out of curiosity, has the prv discharged?

 

[PuraTherm]

The size of the expansion vessel isn't the reason it isn't heating the space. The problem is that the boiler is spec'd out at 28kW for CH. Thats a load for that boiler in a domestic app let alone a wharehouse.

 

[hary_j]

15/60?

Unfortunately not, it's a Ideal one

 

[hary_j]

what about the temperature of the flow and return?

I've not got around to this yet, the flow warms up OK not the best.

 

[shorticus]

The size of the expansion vessel isn't the reason it isn't heating the space. The problem is that the boiler is spec'd out at 28kW for CH. Thats a load for that boiler in a domestic app let alone a wharehouse.

I was pondering that too, those rads have got to be say 2kw each + pipe loss etc etc

 

[hary_j]

just out of curiosity, has the prv discharged?

I havent seen any water triccle out but it does tend to loose little pressure every few days, with no signs of leak on pipe work, so assuming it is the PRV

 

[shorticus]

one other thing to have a quick check on is the internal auto by-pass, could possibly have a bit of debris on the seat

 

[hary_j]

The size of the expansion vessel isn't the reason it isn't heating the space. The problem is that the boiler is spec'd out at 28kW for CH. Thats a load for that boiler in a domestic app let alone a wharehouse.

That's the 1st thing that came to my mind, but seen as it is a big job and quiet pricey to replace, maybe some essential add-ons may help! :-S