We rent a flat in a big old Victorian house and find that when it's really cold the radiators doesn't even touch it. Last year we spent a fortune on an unefficient old electric heater and are looking for alternatives. We don't have a fire and can't get one as we rent. I know there are different types of portable heater including energy efficient ones but I don't really know much about them and am a bit lost after a bit of a google. Does anybody have a portable heater that works well for heating one room (or even just part of one room - it only needs to be warm where we are on the settee!) and doesn't cost the earth?