our fire smokes most of the time I.e. if the wind is blowing or we look at it the wrong way.This is having a serious effect on our health ( children with asthma e.t.c.) not to mention the soot on all the walls . there are no cracks in the chimney and nothing has showed up.I think the answer is a burner but worried that after spending a few grand the problem will persist.Has anyone any experience of this?I have a fire in the other room that works perfectly.