Forno Rustico 120 User manual

Forno Rustico 120 - Oven Installation Instructions
1. Construct a 4” concrete slab supported by 2 masonry walls.
If space between walls is over 42”, build a third center wall.
The width and length of slab will be determined by the
size of the oven being installed. The slab should be large
enough to have room for at least 6” of insulation (ceramic
fiber blanket and vermiculite) all around. At the front of
the oven, the slab should be large enough to accommodate
the front arch or any other finishes (stone, bricks, tile, etc.).
(See construction details 1.)
2. For better insulation, lay one or two rows of fire bricks over
the slab or use ceramic fiber board.
3. Then, lay the oven floor pieces without any mortar or
grout. This will prevent possible cracking due to thermal
expansion. Be sure to leave enough space for the front
arch. If the joints of the floor pieces are uneven, smooth
them over using an angle grinder or coarse sand paper.
This will prevent the edges from chipping in the future.
4. Assemble the oven starting from the door pieces. Be sure
that all the dome pieces fit tightly together. The space
between the oven floor and the dome pieces should be left
open. The ash from the first several fires will fill this space
and lock the oven in place.
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Forno Rustico 120 - Oven Installation Instructions
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Ceramic Fiber
Insulation
5. Apply a small amount of mud to the outer seams of the
dome to seal the oven. There is no need to cement in the
dome pieces because the oven dome is self-supporting.
6. Cover the entire dome with a ceramic fiber insulation
blanket (sold separately). Lay wire mesh (such as chicken
wire) over the insulation to hold it tightly against the oven.
7. If the finished oven is enclosed with masonry walls, cover
it with at least 6 inches of loose vermiculite for optimal
insulation. If the finished oven is left dome-shaped, the
vermiculite should be mixed with cement so that it will
stick together. Mixing ratio: 10 cubic feet of vermiculite to
45 lbs. of Portland cement. Add water as needed.
8. For dome-shaped ovens, cover the vermiculite with 1
inch of stucco reinforced with chicken wire. If the dome-
shaped oven is left outdoors, it should be waterproofed to
prevent moisture from seeping into the oven. (For further
details, see construction drawings.)

Forno Rustico 120
52”
47”
61 1/2”
13”24”
22”
52”
24”
61 1/2”
18 1/2”
4”
6”
10”
28”
21/2”
21/2”
Top View
52”
47”
61 1/2”
13”24”
22”
52”
24”
61 1/2”
18 1/2”
4”
6”
10”
28”
21/2”
21/2”
Side View
52”
47”
61 1/2”
13”24”
22”
52”
24”
61 1/2”
18 1/2”
4”
6”
10”
28”
21/2”
21/2”
Front View
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Forno Rustico 120 - Concrete Masonry Assembly
74”
76”
12” Overhang
Door
6" Block
Ceramic Fiber
Insulation
Smoke
Vermiculite, Perlite
or Expanded Clay
4"
32"
6"
48"
Max
16"
Oven Floor
6" Concrete Slab w/ #3
Bars @ 12"O.C. Each way
or
12" wide x 12" deep Concrete
Footing w/ 2- #4 Bars
Undisturbed or
Compacted Earth
12"
Ceramic Insulation
Blanket
Fire Bricks or Ceramic Fiber
Board
4" Concrete Slab w/ #3
Bars @ 12" O.C. each way
4" or 6" Concrete Blocks,
Grout All Cells
Oven Dome
Notes:
#3 Rebar
16” O.C. Horizontal
#4 Rebar
24” O.C Vertical
Provide minimum of 2" air gap between
combustible material and masonry wall if enclosed.
Do NOT place any Structural load directly on oven.
CONCRETE MASONRY ASSEMBLY
8" Class A Chimney Pipe (UL103 APP.)
or Fire clay lue lined
Masonry Chimney
Lose Expanded Clay
Vermiculite:
Mix Ratio 10 cu.ft.
to 45 lbs. Portland Cement
6" Minimum.
6" Min.
Notes:
Provide minimum of 2” clearance between
combustible material and masonry wall if
enclosed. Depending on local building codes.
*If the flue goes through a wood framed structure,
such as a patio cover, use UL approved 103HT
Class A venting, anchor plate and spark arrestor.
Do NOT place any Structural
load directly on oven dome.
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Notes:
The finished oven floor
height should be between
42”- 44” or as desired.
4"
Finished Oven Floor
42”-44” (as desired)
48” Min
Vent
Solid Water
Proof Cover
Masonry lue line*
Approved Spark Arrest
Oven Front Arch
Oven Door
Oven Shelf
Fire Brick or
Insulation Board
Lose Vermiculite or
Expanded Clay- 6" min.
Ceramic Insulation
Blanket
12” 12”
6"
12"