My toyostove lazer 73 has too much soot
I am not a heating expert so take this with a grain of salt.
IMHO, a sooty burning oil burner (which kerosene is used in) is due to too much fuel or too little air. An oil burner consumes oxygen, therefore ventilation is required. A direct vent supplies makeup air and provides and exhaust path. Kerosene comes in a couple of different grades. K2 is generally used for heating.
SO, insure you have the correct type kerosene. Inspect your direct vent to insure it is drawing in air from the outside easily. Insure your control is not supplying too much kerosene.
The flame should not be red - that is a definite indication of too little air/too much fuel. If it is very blue, it may get blown out. Your manual should show you the perfect flame color.
If you are smelling kerosene, that would be a good indicator that something is wrong with your direct vent. Any leak between the exhaust section and the makeup air section will cause this. Reinstall the vent and insure the directions are followed. Moving the vent after installation is perfect for breaking the seals and creating the problem. Have you had any earthquakes lately?
on Oct 04, 2019