spg
Big Red
Can't we play nice and share and learn from each others ideas.
If you're very careful with the way you set it up and monitor it for trouble every now and then you can grab a low density how water heater element rated at 4500w/220v and drive it at 110v (they last longer than their 110v brethren), you then go to the electrical section and get a junction box nut that fits the thread on the element. Pick up a 110v how water heater thermostat too.
You get a hole saw and drill your hole to mount the element about 6" off the bottom, put the washer on the outside mount it with the nut.
JBWeld the thermostat at the the drum lip just below the level to which you will be filling it with oil. Wire her up.
Then I would grab a bundle of r19 and wrap the barrel - being careful to leave a 4" hole in all direction around the mounting point for the heater element to avoid fire hazards. Then wrap the insulation it with saran wrap.
heater element: ~$15.00
thermostat: ~$15.00
insulation: ~$10.00
good ideaDepends on how much dirt is in your unfiltered oil. The longer you settle before filtering the longer your filters will last. Also don't pull your oil from the bottom of your pre-filter source.
I have filtered several hundred gallons of oil through the 2 micron filter although I gravity feed filter instead of pressure feed filter my oil.