adding a rad

[greengrass]

My offspring' lives in Devon I live in Sussex and she and her family have moved into a new house six mths ago and want to add a rad to a bedroom that never had one.
Haven't seen the system but he wants help adding the rad using compression joints in the flow pipes as he's been told not to use pushfit.

My son in law says their is no header tank in loft only mains tank. Are header tanks supposed to be direclty above the boiler? or is that only for vent pipe reasons?. Oh! he did say he thinks the vent pipe comes up from the h/w tank into the main tank. Of course the other thought is to look for one in a cupboard in the room above. The boiler which is in the kitchen.
Strange if no header tank and not a sealed system how is the boiler topped up and how do we turn off the water feed other than from the mains? He knows it isn't a combi as he had one in the last house and it doesn't turn on when you open the hot tap [hence storage tank]
any advice will be appretiated.
Rob

 

[Fluffster]

He may have an open vented h/w system with a sealed heating circuit. There should be a pressure guage on the boiler if so with a filling loop nearby.
Pete

 

[greengrass]

Thanks Pete

 

[Gasman1015]

You could also have a primatic cylinder, if not a sealed system.

 

[Soggy_weetabix]

You could also have a primatic cylinder, if not a sealed system.

Im which case, please dont bung it.

David