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Messages - Harpswelding

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Waste Motor Oil / Re: Used Motor oil for heating
« on: January 07, 2009, 01:53:52 pm »
I do not have "scaling problems". At 100 Psi and 160 degrees a delval nozzel does not attomize the fuel very well. I also did not want to heat the oil outside of the burner for safety sake. At 120 degrees sprayed oil will burn you. I have already burnt 140 gallons of used motor oil this season with no problems and this is my third season. Like I stated I use a thermocouple / PID temp controller and not the old Clixon.....Big difference. I am just here to give what info I have and not to be negative.

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Waste Motor Oil / Re: Used Motor oil for heating
« on: January 04, 2009, 10:29:13 am »
The oil is only that hot for a second or two as the nozzel is heated and not the oil before it enters the pump.
I own 3 air cooled motorcycles. 2 Harleys and a honda XR650L. The honda runs very high oil temps and recomends oil changes at 2000 miles. How hot do you think the oil hitting the underside of the piston is getting?
      It takes 2 things to crack oil, heat and time. The flash point of drain oil is just under 400 deg.
The high temps are needed to lower the viscosity so that a normal fuel nozzel can properly attomize the oil without the used of compressed air. I am running a .65 GPH extra solid nozzel but can also run up to a .85A.
Regards, Matt.

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Welcome Center / Re: Hello and how the forum came about.
« on: January 01, 2009, 06:10:49 pm »
Russ, I heat my small farm house with WVO and my 4 car garage with used motor oil. I modify a Beckett oil burner with a nozzel holder that has a 400 watt heater and can lower the viscosity so that a normal nozzel can attomize it. The pump and all safeties are still used. No compressed air is used. Matt.

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Waste Motor Oil / Used Motor oil for heating
« on: January 01, 2009, 06:00:47 pm »
I use the same method to burn used motor oil as I do for WVO. A nozzel holder preheated to around 300 deg. F. The problem is ASH. Used motor oil burners need cleaning. I get around 30 gallons burnt between cleanings. I use heat to drop the viscosity and attomize the fuel without the use of compressed air. Matt, Zip code 19312.

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Waste Vegetable Oil / WVO A.K.A Yellow Grease
« on: January 01, 2009, 05:55:01 pm »
I heat my home with WVO. I designed a nozzel holder for a normal Beckett oil burner that heats the Veggie oil  to 300 deg. F..... WVO at 302 deg. is the same viscosity as #2 oil at room temp. This allows the oil to properly attomize and burn without smoke. The down size is that you can not leave WVO in the nozzel when the boiler is not running, it will turn solid. WVO+heat+air+contact with metal= Solid WVO. I purge with #2 oil for 50 seconds at the end of each burn. All of this is controlled by a 3-way solenoid and a timer. The system is fully automated and all you need to do is set the thermostat. Cost to convert is around $350 in parts. I am using a 30 year old Columbia boiler with a newer Beckett Burner. Final filtering is only 25 Micron. A little water is Ok as long as it stays suspended in the oil. My fuel savings will be about 90 to 95 percent this heating season. Matt, Zip code 19312.

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