thanks for that

to be honest i havent yet made a litre of biodiesel lol.
and im thinking of jumping straight to 900l batches.

before you laugh at me i must admit that i do have queit a background in chemistry and i have done plenty of research for many months now on the topic of biodiesel. the only part that looks difficult is the titration but i am used to carrying out complex titrations accurate to 0.001 ml. furthermore my neighbour also started at 900l and he is thinking of selling his equipment to me.

back on topic however i only know of guides that talk about making 35lt batches using 1.5kw heaters to maintain the temperature at 55 degrees C and take one hour to heat.
My question is that will i need to scale up the wattage of the heater to 38kw to heat the vessel in the same amount of time? (1.5/35*900)

in the same way the guide mentions the use of a 100w mixer to maintain an agitation rate of 500-600rpm. does that mean that i would need a 2571w (100/35*900) mixer to maintain the same rate of agitation OR does it mean that i would have to increase the actual rate of agitation eg 1000 rpm instead of 500-600.

i have based my figures on scaling up the wattage only, i dont know if i am right or not. im just trying to scale up the wattage, but it may be some other complex equation to scale up the amount of heat needed.

sorry for the long winded post,
thanks in advance,
Mubs