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Well done as usual Marty !
The Taylor stuff is also Optimus based. I have disassembled both their
heaters and stoves and found the same burners. The older ones did have
have the self-cleaning pricker. I think they worked just as well maybe
better. All you did to clean the unit was to run it at max for a while
and the carbon would burn off. Kerosene also burns much cleaner than
diesel. I would always opt for it in this type of unit e.g.:
pressurized spray. Diesel is superior in a drip type unit e.g.: Sigmar
or Reflex. They throw much more heat and like a well made diesel engine
are designed to run continuously .
On Oct 26, 2004, at 5:23 PM, Marty Chin wrote:
Thought you would want to know. Just got off the phone with Force 10
factory this morning, for what its worth.
I was chasing down a problem regarding our Force 10 kerosene/diesel
heater and the repair kit we received. Our burner assembly has a knob
which is marked Optimus, the shank on the knob is about 6 inches long,
same as sold on current units.
I had assumed the heater was set up for kerosene and wanted to convert
it to run diesel, at least this is how the story begins. In June this
year we called Force 10 and ordered the conversion kit, last weekend
we attempted to install the kit with some minor problems.
We searched the boat and found an older kerosene to diesel fuel
conversion kit we didn’t know we had, it has the nozzle removal tool,
2 prickers, nozzles and gaskets. Without the nozzle removal tool, you
will not be able to remove the nozzle. The instructions (Sugg. 100)
state “Suggestions on fixing problems with kerosene or diesel burners
made by Optimus or Patria burners.” The factory Representative claims
they never sold parts for Optimus burners, according to the literature
in the kit, this may not be entirely the case.
Our Optimus burner jet is stamped with the letter “M”, Force 10 said
their parts have always come from Patria and are not marked, both old
and new kits are not marked I suspect these to be Patria kits. The
note in the older conversion kit, states this “conversion is a
relatively new product,” I translate this into meaning this kit is one
of the original kits developed for conversion to diesel.
I checked the Optimus backpacking stove website, the Hiker and Hunter
cook stoves use part number 2457 cleaning needle, Force 10 calls this
part a “pricker” and the 2509 which is the jet, there are 3 jets,
A=alcohol, G=white gas, M=multi-fuel, the “M” jet will work for
kerosene, diesel and white gas, not automotive gasoline.
The instructions state 135 degree rotation from full open to close of
the handle is required for the heater to operate properly. Here is
how it works, the 6" long handle is attached to the burner spindle
square shank by a hairpin clip, the spindle is threaded into the
burner housing, when the spindle screws in all the way (clockwise) the
end of the tapered spindle is part of the valve which shuts off the
fuel; the spindle has gear teeth which mesh with gear teeth in one
side of the pricker, which raises and lowers the square sectioned
pricker up and down to clean out the jet with a needle.
Note both the old conversion kit and new kit parts are identical. This
is were we had a problem; the pricker in our old burner has 5 gear
teeth and the prickers in the new kits have 6 teeth, yes they are
longer, which means we only get 90 degrees of rotation on the handle.
How to fix this problem: place the pricker in a vise and carefully
file off the end opposite the needle, making the pricker equal to the
length of the original pricker.
Force 10 still has plenty of rebuild kits on hand. However, Steve said
Patria has closed its doors on three occasions and says this is the
last time; there are no more burner bodies (housing) available on the
market. Therefore, the kerosene/diesel version of the Force 10 Cosy
Cabin Heater are no longer available. They are still producing the
propane version and the propane conversion kit is still available to
convert your kerosene/diesel heater, cost is $200 US, half the cost of
a new Cozy Cabin propane heater.
If you intend to keep your old kerosene heater, you might try to
scrounge the flea markets for used parts, at least the burners.
Other news, Steve said Force 10 has acquired Sigmar heaters and cook
stoves two years ago and have signed an agreement to sell these
products through West Marine. I suspect they will show up in next
years catalog; as mentioned earlier, Sigmar makes a little heater,
Sigmar 100, which may be a possible candidate to replace the Force 10
kerosene/diesel heater, http://www.go2marine.com/ also sells the
Sigmar heaters often the prices are a little lower.
Another maker of small heater from England is the Blake/Lavac guys,
the Taylors 079D, not cheap by any stretch of the imagination, at
$1,400 US, includes heater, exhaust pipe, deck iron, deck cap, fuel
line, auto shut off and SS fuel tank.
http://www.blakes-lavac-taylors.co.uk/prod01.htm If you include all
the parts required to install the Sigmar unit, you might find the
prices to be comparable, not considering shipping of course.
I think, when you consider the total cost in locating the correct
parts to complete your heater installation, including your time, gas,
etc, it might turn out to be a fair price.
I hope you find this information useful.
Marty Chin, BCC Shamrock
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Slightly off subject but very relevant.
At this link is a Maritime Safety Austhority of New Zealand warning
about Dickinson diesel heaters.
I understand that there have been similar incidents elsewhere
including North America. I also understand that similar issues exist
for other liquid fuel heaters of similar type.
It is also of interest that LPG heaters and water heaters are not
acceptable to survey authorities in Australia due to safety concerns.