Bio Fuel, fryer oil

My vote is for yes.

Make sure your fuel is properly filtered.

Do it.

(this is where my disclaimer is supposed to be... I take no responsibility for any unsafe situations, circumstances, or unpleasant side effects as a result of my advise. Any loss of life or limb as a result of listening to my words, must be taken up with the HR department. I shall be held responsible for nothing that happens as a result of my rambling incoherent thoughts)

I would be able to skip a some steps here as I use a boiler system for my house. All that needs to happen is heat some fluid (Propylene Glycol I think) and the system circulates the fluid throughout my home. What about a mixture of Diesel and fry oil?

I am not sure what steps you are going to skip, the part that needs the most changes is the burner which is common to any HHO setup boiler furnace or otherwise. Your boiler may also need modification as the flame tends to be longer.

I use a boiler that circulates hot water to heat my house so its the same setup as your talking about.

I have never mixed diesel and fry oil, I imagine its the same as HHO and WVO (waste vegetable oil) I have heard they mix ok although you need to mix throughly but once mixed they stay that way, but I have no first hand experience. Once again don't put any WVO in your main tank mixed unmixed or otherwise, as you will only be asking for problems.

The only rule I can think of:

Make sure they did not fry onion rings in that oil

Now if you could get oil from the doughnut shops, that would be Sweet

the difference between petroleum oil and fry oil is pour point. The fry oil will not mix well with the heating oil and will settle to the bottom of the tank and turn to a solid. The pump will lose it's prime and you freeze trying to unplug the pump suction.

bio diesel is 5% to 20% bio diesel and the mixture also has some additives to keep the two seperated.

As for fry oil, people blog it all the time, but they leave out what happens if the switch to fry oil before it has been heated up enough when driving in the winter in a place where you use oil to heat your house. Running fry oil in Florida in January may be OK, in Maine, you are out of luck.

good luck with the fry oil, people are paying top dollar for it.

I have heated my house for two winter seasons in New England with biodiesel. This year I have made over 1600 gallons. (my house is over 200 years old and not very tight as far as heat retention goes.)

I have read several post on other "Green" sites about using waste vegetable oil (WVO). The main problem other than fileing , which is essential, is that the stuff gels up as it get cold and eventually your furnace/boler may cease to function, unless of course you can prevent the cooling of the oil. This gel point is dependant on what type of oil you can get your hands on.

You could preheat the oil before using, similar to the greasecar method, to prevent nozzle clogging. No, this is not some type of Scottish dance.

You can research the process of making biodiesel as well. It truely is not very hard, just time consuming. With BD you will need to change a few things onyou furnace/boiler. One being the purchase and installation of a biodiesel compatible pump. The second is to increase the pump presure to 120 PSI or so while decreasing the nozzle GPM. This ulitmately creates a finer mist which ignites better. Also the filter will need to be changed a few times if you are using existing fuel tanks as BD liberate a lot of the junk that settles out of conventional fuels and will most definately clog the filter.

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I suggest you be particular about the type of old fry oil you use. Make sure it is liquid at room temp! This would be soy, corn, sunflower or canola. Stay away from partially hydrogenated oil commonly used at seafood and fried chicken restaurants. It will solidify on cooling and clog up the works. I filter down from 100 micron bags to 25, 5 and 1 micron bags and let settle in a tank. I draw out from that and filter thru 1 micron again before putting in my fuel tank. If you mix filtered fryer oil and heating oil, it should spray better. I would suggest adding an easily changed fuel filter right before the pump going to the nozzle. And put a box with oil absorbant pellets under the filter, because you will most deffinitely spill some when changing the filter!