jrthe3
To estimate with oil and raw sap figure 3 gallons of oil to make 1 gal of syrup. 1 cord of wood will make approx. 20 +/- depending on effic.
So 60 gal of oil at say 4.00= 240
If you are not going to have the time to cut your own wood then you are probably better off going with an RO and oil fired evap.
For me I enjoy working up all my wood. I get it for free or next to free so the 20 or so cord per year is not a big deal.
Keith