Changing Open-vented to Sealed System

[Mike2007]

Presently there is an oil Rayburn cooker, semi-gravity setup, open vented.
I need to install a condensing oil boiler. How easy is it to install a System Oil Boiler and seal the whole of the central heating, I will check expansion vessel against system contents to see if size is ok.

1. remove CH F&E tank
2. Cut back both pipes to tank and cap off. Remove mains supply to tank.

Thanks

 

[muggles]

Are you disconnecting the Rayburn?

Your description of sealing the system is reasonable, but don't forget to remove the tank from the loft and correctly dispose of it

 

[Mike2007]

Are you disconnecting the Rayburn?

Your description of sealing the system is reasonable, but don't forget to remove the tank from the loft and correctly dispose of it

Yes its a swap around

 

[HERTS P&D]

Then fix all leaking joints once sealed!

Andy

 

[Mike2007]

Then fix all leaking joints once sealed!

Andy

Umm sounds not that straight forward? I just want to avoid the system pumping over and getting oxygenated