I have a home in Western New York built in 1917. The third floor attic has been renovated by a previous owner however, it does not have heat. There does not appear to be any duct work up there as well. I primarily use it as an office or storage space. We are considering a larger renovation project allowing us to use the space more effectively (guest room, playroom). We recently re-insulated the entire 3rd floor with cellulose insulation but I am still wondering about heat. Buffalo winters can be chilly. Is there any way to heat the 3rd floor other than a space heater and without a ton of cost?