"There are two more scuttles down in the cellar"

 A coal scuttle is a container used to carry and contain coal, particularly in domestic situations where the bulk of the coal is stored in the cellar of the building and transported in small amounts upstairs as and when it is needed.  In the developed world, it is now rare for people to use coal to heat their homes. 

Coal is lit using kindling and soon burns at a high temperature.  Compared to wood, it is safer to leave coal burning unsupervised, as long as there is a strong grate surrounding it and a sound chimney. 

Coal has long been mined in Germany but it is planned that this will end by 2018.  The notoriously dangerous levels of smog in Victorian London were testament to the  period's reliance on coal for heating and industry.