NS Dev
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| posted on 13/9/09 at 12:32 PM |
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burning waste oil properly! (heating! )
I'm just wondering if anybody on here has any expertise in diy waste oil heaters!!!
I am looking for something to heat our rather large workshop, and seeing as we have the odd drop of waste oil, thought we might use that!
I have seen all the diy "mother earth" stoves, but I need something a touch more serious than those!
Bear with me and see what you can add!!
My first thought is keeping the oil fed properly, none of the other designs look very good at that. My thought is to use an old compressor air tank
(or a large empty inert gas bottle) and weld a2" pipe socket in the end and plug it. I can then put the tank on end, with the 2" filler at
the top, fill the tank, put in the plug, then feed it with regulated compressed air to give a nice constant pressure of whatever is
needed.....i'm guessing a first stab at 10 psi or 20 psi, all depends on the burner!
Next is the burner.....
I want to have a forced air burner, (and then also make the heater a blown air type so it fills the place with hot air not just radiated heat.)
Where I am a bit stuck is how to do the burner. I plan to filter the oil, prob through a strainer, then a truck oil filter I guess, so it won't
instantly block everything up. The burners I have seen seem to be either air mix injectors, or hotplate ones.
I don't want a hotplate type as they can end up with pooled fuel and a big fire, and the babington type are not very nice regarding this
either.
I think an injector will do the trick, but then how to design it!!??
I have seen waste oil burners which use electric cartridge heaters to heat compressed air, which is then blown though a venturi not unlike a
carburettor, pulling the preheated waste oil off a jet, again just like in a carb. This makes sense I guess, but can anybody come up with anything
better/simpler?
Anybody know of a source of decent adjustable needle valves to control the oil flow?
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Cousin Cleotis
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| posted on 13/9/09 at 01:02 PM |
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What about a deisel engine injection pump and injectors?
Paul
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Dangle_kt
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| posted on 13/9/09 at 01:03 PM |
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what about diesel injectors? I have no expertese in this area, I just know deisel injectors from old cars can run off veg oil, so took the idea a step
further.
EDIT - a few second late...arg!
[Edited on 13/9/09 by Dangle_kt]
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oadamo
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| posted on 13/9/09 at 01:46 PM |
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im looking at doing the same thing in my work shop its about 2000 sq feet so i think i need a big heater. its costs loads with gas bottles or i was
thinking of making a wood burner.
adam
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britishtrident
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| posted on 13/9/09 at 01:49 PM |
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One of the big problems is petrol contamination of the oil, not so bad thesedays but back in the days of carb engines oil it was pretty common for
waste oil heaters to explode.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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l0rd
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| posted on 13/9/09 at 02:06 PM |
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My mechanic in Greece had a similar configuration. He was told off eventually for environmental polution.
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twybrow
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| posted on 13/9/09 at 02:07 PM |
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Talk to Matt at Procomp. He has a homemade unit in his garage, that filters and then burns the waste oil. From what I recall, it heats his garage
(huge!) and part of his house.
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Canada EH!
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| posted on 13/9/09 at 02:57 PM |
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An old workshop I went to in the 60's had one.
It was made from a 45 gallon drum with copper tubing wrapped around the inside of the drum and a couple of bricks on the bottom.
I was told the heat from the stove heated the oilin the tube that was gravity fed from a tank above it then sprayed onto the hot bricks were it
burned.
Much like the system used in a Coleman portable stove.
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zilspeed
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| posted on 13/9/09 at 03:59 PM |
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I do not recommend the following method
A friend of mine has what amounts to an old gas cylinder with a hole cut in the side which has a flap for controlling the combustion air.
A flue on the top leading outside completes the deal.
He takes the flue off, chucks the sump oil and then throws a lit rag soaked in heating oil on top.
Replace the flue and now it's all down to the control of the airflow to basically stop this fire getting out of control.
This thing is basically a controlled chip pan fire.
As I said, do not copy this idea.
He's being doing it for 50 years...
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