OutDoor Furnace Plan
Eliminate your heating bills!
This OutDoor Furnace (ODF) design can provide some
real relief from high winter heating costs.
This comprehensive package is a printable production
type drawing set which you use
to "Build-It-Yourself". The ODF is built with common
materials and components.
(The materials and components you find to use can be
new, used, or surplus).
The price of gas & oil is only getting higher!
Order your ODF plans today!
BETTER THAN OTHERS OUT THERE
Efficient compact design saves on your firewood
Lighter weight, less expensive, easier to build and
handle. No connections to the existing system. Can be
used 'alongside' any other type of existing heating
system. No antifreeze or liquids that can leak,
slush, or freeze. No stealing heat from the house or
wasting valuable firewood or electricity just to keep
hundreds of gallons of liquid from freezing during
the many days when the ODF isn't even needed. No
expensive liquid heat exchanger. Don't opt
for complexity. This system is as simple as it gets!
no reason not to do this!
This ODF can be built for about $750 ;
ABOUT THE COST OF ONE or TWO LP GAS FILL-UPS!
on the cost savings success of your new/ used/ surplus
can more than pay for itself in the first season.
This system can typically save $2000 in LP home heating
costs each year.
Procure the purchased
parts per the
Procure raw materials and fab the piece parts
per the detail
Fab the weldments
Assemble it all
per the assembly drawings.
It's that easy.
(A help file
is included for assistance).
SOME CUSTOMER FEEDBACKS:
As described. Smooth transaction. AAA+++
Plans are very good!!!!
A straightforward deal. 5 stars.
And from a
happy Michigan customer :
"Nice plans... Works great... This thing works like a
concept can also be used in OUTBUILDINGS, SHEDS, or
fuel prices have all gone wild; LP and Natural Gas,
Corn, Pellets, etc. -- but your firewood source IS
STILL FREE and more eco-friendly than using gas, as
trees are replaceable! The value of your time spent
cutting your own firewood can be worth $40 to $60 per
hour or more at current LP gas prices!
File types in this package are: .txt, .doc, .pdf, .jpg, &
Sold for private single use by purchaser - homeowner.
All items are copyright.
Package can be supplied as an easy .zip data
file attachment sent by email - FREE S&H
or is available (worldwide) on CD with the addition of a small
S&H & copy charge.
Raw materials for the ODF can often be bought at scrap prices. Many purchased
components can be found in places such as eBay or Surplus Supply Dealers
online (some suggested resource links are included).
The package also contains helpful info on different types of firewood
& heat values, general money saving heating tips, as well as operation
and maintenance of the ODF.
PLUS an AMAZING EXTRA...
There are included links to our free helpful (but optional)
assembly-explosion .avi videos and 3-D models and a download link to an
easy to use 3-D program that allows you to view and rotate, explode
the model, measure, do cross sectional views, make parts transparent to
see inside, and more, even mark-up and save the file!
THIS BONUS OFFERING IS AWESOME!
The Videos & 3-D Models can be downloaded to your PC!
A very thorough package-
The entire package is 132 files/ links/ etc. which includes 64 drawings
(one is an easy to follow electrical schematic).
Over 9 MB total.
Professional Grade Drawings
Such as those used by manufacturing
Super easy to read Ordinate Dimensioning.
Clear indented structure parts lists on the drawings.
Flat pattern dimensions included for formed parts.
Drawings include isometric views for easier reading.
SOME PACKAGE CONTENT
(download may take a few moments)
Get started on your ODF today!
Protect yourself from a situation like the one in '08
- '09 when a trade dispute between Russia and the Ukraine cut
off the heating gas supply to parts of the E.U. for WEEKS in mid WINTER!
With the financial trouble being seen worldwide this could happen
anywhere. EVEN in the USA! Be sure you have a backup system this
The ODF is Outdoors, so the firewood, the ash and smoke,
all stay out of the building!
WHAT THIS WOOD BURNING FURNACE SYSTEM IS:
This ODF is a simple and efficient, forced air, stand-alone, temperature
controlled, outdoor furnace which can completely suspend the
operation of the building's existing furnace. Situated behind the
building at a recommended min 12' away, the ODF circulates
cold / warm air between the ODF and the building. Output sized
for buildings in the 2300 sq ft gross living area range plus partial
heat to basement (of ~1300 sq ft).
A typical home gas furnace can supply 125,000 BTU/Hr but usually only
runs about 1/4 of the time in the winter, cycling on and off many times
per day. The ODF supplies approx 1/4
of that heat rate or 35,000 BTU/Hr, but since the ODF runs
continuously (when fueled) the heat output of the ODF would be about
equal to that of a gas furnace if either were used for a full 24 hour average
The ODF spends no idle time wasting firewood for a building
not calling for heat. Nor does it waste firewood sending excessive heat
into the building. Therefore, with this design approach, on the occasional very cold days,
some assistance from the existing furnace may be called for. This
is much preferable to burning an extra cord or two of firewood all
winter just to have extra capacity for the rare few very cold days. The ODF is
designed to run at a 'happy medium'.
firebox volume is 15 cubic ft. The size of the enclosure is
67" H X 53"
L X 40" W.
The ODF has a run time of 12 to 30 hours.
(Depending on your firewood density)
The more you use the ODF the smaller your heating bill is going
Use it as much or as little as you like. You aren't chained to constant
The ODF circulates air not liquid. A VERY BIG PLUS. If the fire goes out,
no problem, you never have to worry about the ODF freezing! Just restart
it whenever you wish.
Intended for the home shop enthusiast with good metalworking
and welding skills and some electrical & mechanical ability.
The package is supplied as computer media (drawing files) using common
Estimated fabrication time is 80 hours.
This ODF as documented will have two steel sheets approx
48 x 96 x 1/8" which will need to be roll formed by your local metal
(These are the main and most expensive
items -- these have been done for
around $280 including material for the pair by our local shop that was
glad to help us).
This cylindrical design reduces welding by 75% and
improves flow and efficiency over typical square sided furnaces.
The rest of the fab'ed parts can be made in a reasonably equipped home
Recommended TOOL LIST:
All common metalworking hand tools.
MIG wire welder (not a stick welder).
Small tap & die set.
Metal cutting band saw.
Grinders (bench & portable)
Cut off saws
Concrete leveling tools
Small pickup or trailer to move items.
The main (bare firebox) weldment
will weigh ~ 415 lbs.