What temperature would you want a radiator to allow a living room to be able to get up to when the rad and boiler is set to max? That is, in order to allow for exceptionally cold evenings/nights. For example, I set the boiler to max (stated 85.5 degrees on boiler for heating system) and turned a vertical radiator up full, was able to a room temperature of 27 degrees when there an outside temperature of 12 degrees. The room temperature before heating was turned on was 15 degrees. Do you think this radiator is providing enough heat for the room to allow for exceptionally cold temperatures (e.g. beast from the east)? It didn't get up to this 27 degrees quickly though as it's a column rad, possibly took a couple of hours or more. It reasonably quickly got up to 22 degrees in the room though. Thanks.