12v heater for vedge oil

Hi guys currently running on 50/50 mix of diesel and oil with a bit of 2 stroke for good measure I seen some story's of people installing a 12v heater to warm oil through to allow a higher ratio of oil to diesel how and where would it go??? And is it worth it



(I'm guessing in the tank somwhere )

from the last news http://ift.tt/1vomo8T

via IFTTT