Reuters Business Report - This is becoming an increasingly common sight in Greece.
Facing economic hardship, more and more residents are turning from expensive heating fuels to burning wood for fuel.
The switch is causing problems for the environment, as wood smoke can contain potentially harmful pollutants that have been linked to respiratory and heart problems.
The centre for disease control and prevention says the use of wood is likely to increase even further in the coming months as the weather gets colder.
"The situation is going to be more serious over the next two or three months because we expect to have low temperatures."
The young and elderly are most at risk from the pollution.
This pensioner though says the government should reduce the price of heating oil so people can afford it.
Opposition parties in Greece have also asked for a reduction of tax on heating oil, but the government says it has not plans to do so in these times of austerity.