Air in CH system

[Diyhomerenovator]

We have just had a heat only boiler relocated and new one installed. Is it normal for the CH pump to still be making a whooshing sound and a lot of air moving into the radiators 2 days later?

 

[John.g]

No, have you a sealed or open system with a feed & expansion (small) tank in the attic?.

 

[Ric2013]

Not ideal, but it is common for air to take some time to settle out of a system. If you bleed the radiators again today, see how it is on Monday, that would be my suggestion.