I can't even close my eyes And I don't know why, guess I don't like surprises
I can't even stay away from the game that I play
They gon' know us today, yeah

Many of the houses have fireplaces that are 15% efficient and use 15 kg of wood to heat a room to 20 degrees celsius. wanting to reduce their ecological footprint, several of the homeowners are considering switching to woodstoves that are 75 percent efficient. if they do change to using a woodstove, how many kilograms of wood will they save per use?