"Phil L" wrote in message
. uk...

Not without spending any money, no...you've already stated that it's a mid
terraced, which rules out knocking a large hole through a gable wall and
putting a window in, the loft windows are out which severely limits your
options...you could try adding another 150mm of insulation up there but
this won't allow the heat to escape which is already there,

All he has to do is put fans in the windows.