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View Full Version : Propane/LNG with drop flue pan



TheNamelessPoet
09-25-2024, 01:34 PM
I currently work off a divided flat bottomed 33x17 (roughly) pan on a 3 burner grill (essentially each burner is a turkey fryer).

I am considering upgrading to a 2x4 pan, and will need up upgrade my burners as well. I have ZERO interest in switching to wood; whether it is more efficient or not, for MY use case, it is not something I can really do or even WANT to do.

My question is, if I got a drop flue pan, could I put burners in between the "drops" in the pan in my arch if I got a drop flue pan? Will that have any benefit over having a flat bottom pan with say 6 burners (each 75k BTU's)?

I am looking to make more syrup and do not have the time on such a "small" pan to expand. I get between 2-3 GPH and make about 5-6 gallons a year. My customer base has grown quite a bit and I actually ran out this year already! I won Best in Show / Grand Champion at the Big E this year, and word got out at my previous job and of course my new job and now everyone wants to start getting mine so I am thinking I need to get up to 10 gallons or more per season. Trees and collection is not my bottleneck, I have plenty more I can tap, it is just the processing of it. I use an RO and can just expand my RO or add an additional one to speed that process up, but it all stems down to not having a large enough pan to boil off faster. Even if I can just get up to 8 GPH that should be enough.

This is my current grill (or as close as is currently available)https://www.amazon.com/Coofel-Outdoor-Burners-Pressure-Detachable/dp/B0827R8RZM/ref=asc_df_B0827R8RZM?tag=bingshoppinga-20&linkCode=df0&hvadid=79920843355703&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4583520391341807&psc=1

DRoseum
09-25-2024, 07:54 PM
I built a NG arch that has a 20" x 40" drop flue pan set on it. I put multiple pipe burners running across the arch under both the front pan and flue pan (about 1 inch under bottom of flues) for a total of about 200k btuh. I also have a small variable speed blower to help push exhaust gas out/up the stack. I've estimated that i get between 12 - 15 gph on it. I have just over 100 taps on vacuum, 2 ROs, and make about 30 gallons of syrup per year on it at an average ratio of 75 gallons of sap per gallon of syrup (predominantly heavy forested red maples with low sugar %).

https://youtu.be/6FyWa9l-kw0?si=cFrXA1n-Zjjzsz9P
https://youtu.be/4N53Ar0jOdg?si=BlfqNm3j5FP4P4ky