Oil conversion 2

[Chasefamily]

I'm not sure why my last thread got closed, although I have got my burner to fire, it starts smoothly and makes the transition to high fire well I believe. I have a 4.5 80 deg hollow in it. Although it only seems to boil in the back of the syrup pan. Not sure what to I need to do to fix this although I do have a few ideas such as angling the burner, spacing burner back, maybe some sort of fire wall, less fuel pressure, air adjustment, or something else. Anyone have any thoughts?

[wiam]

How long did you run it for. Mine takes a little while to get front of pan up to boiling.

[Mead Maple]

How long did you run it for. Mine takes a little while to get front of pan up to boiling.

I second that. What I have noticed with oil is that because the flame is horizontal versus vertical, you have to just let reflective heat do some of the work. I have a similar situation as you, rear of syrup pan tends to boil quickly but like wiam stated, it takes a while to get the front portion boiling. Fortunately with my pans you draw from the rear of the syrup pan which is ideal be it’s the hottest and the reason I had Thor design the pans that way. Let it run for a while and I think you will find that eventually the deflection will heat up the very front of the syrup pan as well.


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[Brian]

check stack temp, nozzle up and cut oil pressure back, this brings the flame back closer to the front. the front pan should boil with water in it.

[Chasefamily]

Yesterday I boiled for about 3 hours with fresh raw sap, the longer I went the more the front seemed to boil. Although it seemed like I was only getting about 70-80gph where with wood last year I touched 120. Today I'll check stack temp.

[Chasefamily]

check stack temp, nozzle up and cut oil pressure back, this brings the flame back closer to the front. the front pan should boil with water in it.

Stack temp was 705-715, fuel pressure is 300. The syrup pan starting to boil lil better as gets closer to syrup. Although my overall book rate appears to be way down compared to where I was with wood.

[BAP]

How far is the burner pushed into the firebox.

[Chasefamily]

IMG_20200307_105043614.jpg
I'm not sure of the exact measurements I guess I forgot to write it down.

[Brian]

try to back off the pump psi back to 250 psi and see what happens.

[Chasefamily]

try to back off the pump psi back to 250 psi and see what happens.

I can try that. I'm also gonna try to install a barometric damper and the. Make a steeper ramp angle and make it flush with bottom of pan about 1/3 of way of flue pan. After monitoring it today seemed like stack was 725-735 ish