Originally Posted by arcticathlon

Well now we are talking. i have built many custom watercooling setups for my pc and the best way to heat your fuel would be with a peltier (TEC) and a waterblock. one side of the peltier needs a heatsink(to cool it) and the other side gets extremely hot. i use a 220W peltier with my pc, and it will have a equally cold side. most are made to run at 12v, and are easily attached and made into a fuel heating module.

the H is the hot side, the other gets cold, and in case of the processor it cools it so it runs faster. you would just need a simple heatsink on one side of the peltier and the other side has what pawoSD has pictured, your run the fuel through that, and all is well. i think i will build one with my extra parts i have and show you guys.

in the pics below is my peltier from my pc, it removes heat, but all i have to do is turn it around and it would add heat to my chip. in this case we need heat added to the fuel.