Louis,
No Kidding! I fly a homebuilt too.

We looked at the "waste oil" furnaces that were
available either as plans or redi-built and decided
early on that we wanted a design that was modular,
required no outside power source, required minimal
filtering,and was as simple as possible. Essentially
the design I described in my previous post is a
glorified candle. Can't get much simpler. On one of
the early tests I simply set up a single burner and
used 20' of exhaust pipe to vent it to a metal
chimney. I was amazed at how much heat it produced.
You can figure how many burners you need to replace an
existng heater by extrapolating BTU value of 1/2 cup
of WVO per burner. We do use a warerbed heater to keep
the WVO at a constant temp. in an insulated tank but I
suspect that if the power went out it would be several
days before the WVO changed viscosity significantly.

Dana


--- Louie Pelletier <[EMAIL PROTECTED]> wrote:
> thanks Dana   i'm just finnishing building  my 4th
> airplane.  i built a wast oil furnace for my shop
> this summer.
> it's working fine , but it needs  electricity and
> compressed air
> to work. i want to start experiment on a heater that
> uses
> wvo that uses no power .
> louis
> 


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