Ok if you have a spec machine the attached first page show what your working with.
The online specs does not show which burner the machines carry, you will have to look at the sticker at the back of the burner assembly (or call alkota) to determine the model number to verify the maximum output of the fuel pump and burner assembly in the assembled firing chamber.
The other attached tables on the second page should shed some light on what can and cant be done this is for my 120V burner manual. (not sure if you have a 12 v but the same principles apply)
Hope this helps.