Cap for a removed radiator?

During a renovation we had a radiator removed from a room where it wasn’t needed, though the pipes and everything else remained. I just noticed that where the radiator connected the pipes are still open. Will I need to cap these for the system to function? WIll the absence of the radiator screw up the rest of the system – i.e. do I need to close the connection between the 2 ends? Thanks for your help!

By AstralOil |