Wood burner smoky or full of embers

The wood burner is smoky, slow or full of embers

The Wood Burner manual:

• Basket full of embers: the wrong fuel or overfeeding. Empty some embers and keep the door closed.
• Thick or black smoke: wet or soft wood. Some smoke at the start is normal.
• Slow to heat: wet wood, wind, cold or too little fuel. Back to the wind, and feed more often.