Converting a fuel oil furnace to burn waste oil? Possible?

[allessence]

I filmed the starting of the furnace and steps..

Some of the my favorite things about the setup..

Will burn anything.. Wood, coal (hard and soft) and of course use oil..

I love the remote thermostat.. Has been flawless and can use temperature gradients to keep one aspect burning..

If wood or coal is running and the fuel runs out, the furnace will automatically switch over to oil or gas if a gas burner is installed.

I have it set for a 5 degree difference so if the thermostat is set for 65F and it drops to 60 the oil burner will automatically come on..

Here is a link to the video.

Still processing but it's a short video..

One of the things I'd love to fix is a fuel cutoff that will wait till oil pressure has fully built up and when the burner shuts down it would be nice if the fuel nozzle and tube would self purge..

Because oil will boil as the burner comes up to temperature it will spit oil out the nozzle.. This is a problem if the nozzle is set back to far in the burner holder tube of the furnace.

https://youtu.be/eH48H35rOjQ