What is a good way to keep the house warm very cheap?
I have recently moved to Japan where apparently insulation does not exist yet for buildings. I am freezing with the apartment staying around 3-6 degrees Celsius or around 37-43 degrees Fahrenheit. We I have a small 800 heater which I have been using but thanks to leaking windows, sliding doors, and no insulation it does not help at all. Does any one know any economical ways to heat my apartment?
I can't have a wood burning stove or to replace the windows, I have a very tight budget for the next 3 months.
Any help is greatly appreciated.