Rad balancing order when multiple rads are stone cold?

[AVR2]

We have three rads that remain more-or-less stone cold (and they're full of water, they don't need bleeding) while some others are very hot and others just warm. I've read up on the technique for balancing and the need to make a list of the order in which the rads warm up, because that's the order you follow when balancing - but what about the ones that stay cold? Does it matter which order they're done in?

Two are downstairs and one is upstairs, if that affects things.

 

[Crofton Gas]

When balancing a system, you open the furthest rad fully open and then restrict the flow as you you get nearer the boiler. Any that are hotter are restricted more.

 

[snb]

adjust to all downstairs so lockshield valves are open 1.5 turns and all upstairs to 1.0 turn open.

But before you do that make sure that the trv heads on the affected rads do not have the pins stuck down as this is the most common cause for rads not working

 

[AVR2]

Thanks guys!