Waste Oil Heater Forum - Your definitive source for burning waste oil for heat.

I think the best and cheapest set-up is using a vacuum pump ($40 used)(in
reverse) powered off the burner.

--Paularlo

I use a old fridge compressor for air brushing that works very well but the
question here, in trying to use one for a furnace gun, is would it have enough
air volume to do the job?
Richard in Vermont

Scott,

Owned one and operated it for a year before I decided to build my own
siphon setup. It was an Omni boiler with a side mounted Gast
compressor coupled to the end of the blower motor on a Wayne
Combustion Systems burner. You are right, it was noisy and it
carried moisture over to the air passage in the preheater block which
contributed to lots of nozzle maintenance. I have not written off
the Gast compressor completely though. With a quest to build the
lowest power consumption system possible, I am thinking of directy
coupling another used Gast rotary vane compressor to a DC motor and
dial in the exact output I need for the nozzle air to avoid the
bleedoff valve, tank, or regulator's typically used with these
compressors. I figure if one were to slow the RPMs down on the
compressor and take 100% of the output of the compressor and send it
to the nozzle, it might make a pretty decent highly efficient air
source. Setting it up this way should help make it quieter too. I
will let you know how the experiment goes. I guess the moral of the
story goes is that the direct burner mounted Gast compressors are not
as good as the separately mounted compressors such as the Thomas 2650
units found on ebay. You have to admit, the Gast burner mounted
compressor looks far better installed than any other remote setup but
it is not worth the money and problems associated with it.

Thanks,
Jason

HI,
Go to ebay and look up Thomas compressors. Mine is a 2 diaphram pump
it produces about 35 PSI it draws 4.5 amps and produces all the air
you could ever use on your siphon gun.Best of all it is quiet I
bought mine for 60.00 shipped to my door! it's awesome
Best,
Joe

is anyone using the gast gun-style oil burner compressor on the siphon
system ? Ive heard its noisy and for 300 dollars is it worth it.it
mounts right to the burner and gets driven by blower motor . or does
everybody use stand alone compressors and what type.

scott

Thanks for that steve. i am actually trying to buy one of these from king built,
they seem very protective of their product. It looks like a good air turbulator.
i have used clean burn in the past but they cost over here £60 each. it's a
joke.

Kind Regards

Rob

hello
because the small garage air compressor was noisy, bought a second hand
thomas pump from ebay, attached to a small tank from a water pump, a pressure
relief valve set to 1.5 bars (it's enugh) and a one way valve, 2 cheap plastic
gasoline filters on intake and pressure relief valve like silencer ...and that's
all

it functions all the time when the burner functions, maybe next year attach to a
bigger tank and an electrical switch on pressure control too
those pumps are very quiet and made to work all around the clock, without oil,
but for maximum pressure of 2.8 or 3 bars; that;s why i limited the pressure at
1.5 bars, thinking it's a second hand one

wish u luck

"matei

Steve could you send me photo of you retention head/air diffuser i would like
one of these for my burner, i think i could machine one up or have one laser
cut.Â

Many thanks


Rob