Best electric heater for old, draughty house with high ceilings

friendsrgreat

QrizB said:

You asked:

If your flat has properly-fitting double-glazed windows, a well-fitting door, and no open flues I'm not sure why you think air will be escaping as it's being heated. Your landlord will have provided an Energy Performance Certificate (it's a legal requirement), what does it say?

Energy efficiency rating D. There are gaps around all of the skirting boards on the external walls.

Reed_Richards

If you plaster all the way down to the floor then when the floor expands it will crack the plaster.  So you stop short and cover the gap with a skirting board.  But plaster or no plaster won't significantly affect the insulation provided the plaster is on top of a solid wall as it surely would be in an old building.  So I don't see that gaps around the skirting boards are something to worry about, other than from an aesthetic point of view.