[Syrupmakers] Looking for a propane burner design w/ chimney for batch pan

[Tracy Baudoin (tbaudoin)]

A friend of mine acquired a 3' X 10' copper (!!!) batch pan and is
looking for the most efficient way to heat it using propane (no access
to natural gas, and wood requires more labor).  I have the Golden and
Improved "Cook" diagrams from the syrupmakers.com website, but the
drawings are too fuzzy to make out details.  Does anyone have much
experience on this?  

 

Some details I'm interested in:

-        How many propane 'finger-type' burners are required for this
size pan?  i.e., I currently cover the bottom of my SS pan with burners,
but I'm sure this could be made more efficiently by channeling hot air
across the bottom to a chimney.  My current design is for two
'finger-type' burners per jet (29kBTU/jet w/ a #74 drill bit hole).

-        How deep should the area under the pan be to allow proper flow
to the chimney?

-        How tall should the chimney be?

-        What shape should the area be? i.e., I've seen pics with a
baffle to hold the heat and reduce back draft, but I have no details on
this.

-        How big should the chimney be, assuming double walled SS?

 

Any help would be greatly appreciated.

Thanks,

Tracy Baudoin

Houma, LA

 

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