Heat expedites the process, but adds significant danger - for obvious reasons. 
My bio-d partner has recently mastered soap making! Best soap I've ever used, seriously (from degreaser to shampoo!). We are working on a still to recover the methanol, but he is currently using turkey fryer to heat the glycerin and consequently boil off the methanol. 
I've heard the commercial biodiesel folks make as much $$ off their glycerin as they do biodiesel... seems a shame to 'throw it away'. It can also be used by concrete people as form release - most use diesel, so there's a huge savings for them (and $$ for you). Just a couple thoughts! 
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Choose wisely. Or PLEASE post pics of the carnage!!!
2001 F-350, DRW, 4x4, XLT Crew Cab, flat bed, 7.3, 6 spd, Dipricol Optix gauges on pillar - EGT, Boost, Fuel Press., HPO Press. - No Muffler, AIH delete, SB Con OFE, AC code injctrs, GTP 38R. Vegistroke-inspired WVO system w/150,000 trouble-free miles! BTS tunes, 203 t-stat w/billet housing, Evans coolant, coolant filter, boost relief valve, Dieselsite IC boots, Hella headlight harness, '07 grill/lites and big, bad front bumper!
2000 Excursion 4x4 Limited - BTS trans and tunes, AIS, Frybrid/V3 SVO conversion with over 100k VO miles so far!
That's 250k miles on SVO between them! 
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