Combi onto a one pipe system?

[Scott_D]

I am quoting to fit a combi to a one pipe system to replace a back boiler.
From my survey at least some of the existing system is a one pipe setup.
I would usually fit a vaillant but they may be too sensitive in this instance.

What are my options?
Try it and see what happens
Low loss header / CCTs and pump
Obviously a repipe would be best but it’s an old lady with lots of stuff in each room.

 

[ShaunCorbs]

I would plate it and keep the old system as is

 

[Scott_D]

I would plate it and keep the old system as is

Is there a supplier you use?

 

[ShaunCorbs]

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Material - 316L stainless steel with anticorosion system, brazed with copper (99,9% Cu). NORDIC TEC. NORDIC TEC Ba-12 1" Series. © NORDIC TEC. - heating & cooling. Heat Transfer Area Working pressure (max.).

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[Scott_D]

Little bump on this.
Is this setup going to make the boiler throw up error codes or just cycle lots?

I was going to quote vaillant but I know they are a bit sensitive