Mugnaini PRIMA 120 Assembly Instructions And User'S Manual Download Page 25

Prima 120 AOS Manual 

Mugnaini Imports, Inc.   

25

STARTING A FIRE

To start a fire, first place two small pieces of wood on the oven floor aligned front to back. Lay 5–6 pieces 
of kindling across the first two pieces as per the diagram. Place 3 Weber® brand fire starters in between the 
wood and light. Push the pile to the center of the oven.

TIP: Use the long handled peel to push the wood to the center of the oven. Then light the fire starters and 
push them under the woodpile using a piece of kindling.

5-6 or ≈ 1 lb. kindling 
sticks—aligned 
perpendicular to the 
hardwood

Two small pieces 
double split 
hardwood—aligned 
front to back

3 Weber brand fire 
starters

1)

2)

3)

CURING THE OVEN

The goal is to increase the temperature of the oven at a rate of 50–75° F per hour by making a small fire 
every hour. Use the chart at the end of this manual to record the starting time and temperature of the oven. 
Start a small fire per the instructions. Allow the fire to burn and adjust the wood if necessary. You can place 
the door in the partially closed position to establish a draft and keep smoke from rolling out. After the fire 
has gone out place the door in the fully closed position until the next hour’s fire.

Prior to starting the next fire, open the door slowly and measure the temperature of the sides of the dome 
paying attention to use the same spot each time you measure. Average left and right side temperatures and 
record on the chart.

Summary of Contents for PRIMA 120

Page 1: ...mports Inc 11 Hangar Way Watsonville CA 95076 888 887 7206 831 761 1767 Fax 831 728 5570 www mugnaini com mugnaini mugnaini com Includes Venting and Oven Curing Instructions Mugnaini Residential Wood...

Page 2: ...specific design and construction criteria WARNINGS Failure to follow instructions will void manufacture s warranty and may result in property damage bodily injury or even death If this oven is not pro...

Page 3: ...ints 9 Step 6 Installing Flue Manifold 10 Step 7 Insulation 10 Step 8 Oven Venting 11 4 ENCLOSING THE OVEN Diagrams 12 Gable Shaped Enclosure 13 Dome Shaped Enclosure 15 5 OVEN VENTING INSTRUCTIONS Ov...

Page 4: ...and the construction of your oven W120 Oven B C E D G 1 2 3 4 5 F H 6 7 8 9 10 A L K Package Contents Check List Oven Crown Elements Items A H Metal Flue Manifold with Screws Item I Removable Iron Doo...

Page 5: ...height If elevation adjustments are desired modify the height of the lower base only the wood storage area Contractor to verify height of final installation with the owner Oven Base Materials List Us...

Page 6: ...o step 5 determine desired length and depth of extended shelf may extend beyond minimum of 10 deep x 32 wide STEP 5 Place 6 x6 10 10 welded wire fabric 1 above sand using wire dobies and place 4 rebar...

Page 7: ...an outline of the pre assembled floor on the concrete slab for easy assembly W120 Oven B C E D G 1 2 3 4 5 F H 6 7 8 9 10 A STEP 2 MORTARING THE FLOOR Using refractory mortar place each floor element...

Page 8: ...ts Items A and H around the floor elements Item B and C must slide into item A All other items overlap each other You may use a small pry bar at base to manipulate into place the dome pieces on the ex...

Page 9: ...s Apply refractory mortar to the outside base of crown elements Approximately 3 wide x thick over the outside perimeter STEP 5 MORTARING CROWN JOINTS Wet sponge joints Apply refractory mortar over the...

Page 10: ...and mark fro screws Drill 2 holes with masonry bit 1 8 w 1 d Attach flue manifold with provided screws Mortar base of metal manifold 2 Note Ensure the flue manifold is level on top of crown elements...

Page 11: ...Inc 11 STEP 7 INSULATION continued STEP 8 OVEN VENTING Based on the overall oven design and architecture each chimney system will vary Contact your local licensed chimney or mechanical contractor See...

Page 12: ...ven enclosure protects the oven from atmospheric moisture supplies ventilation to the oven so that condensation does not occur within the compartment and retains the insulating materials placed over a...

Page 13: ...e top is put in place fill this enclosure with the specified loose Perlite 9 on top measured from the 1 Thermal Insulation Blanket STEP 4 Place pressure treated 2 x 4 P H T F s or metal studs around t...

Page 14: ...er 3 9 22 3 4 12 2 0 min 4 3 3 2 x 4 P T D F Mudsill with 1 2 A B 16 O C 2 clr PRIMA 120 SECTION SAMPLE DIMENSIONS Verify Oven Floor 72 64 6 conc block 10 1 arch 2 clearance from combustable materials...

Page 15: ...d to desired shape then wait for the Pour Stone to cure STEP 4 Once the Pour Stone or equivalent has cured reshape the rebar and wire all the ends together at the top around the chimney leaving the ex...

Page 16: ...he first coat has cured you may now cut off the excess rebar at the chimney Begin again at the bottom and cover the first coat with the second brown coat 3 8 thick exterior stucco right up to the chim...

Page 17: ...rk arrestor Simpson Dura tech or equivalent 7 8 exterior cement plaster 1 4 steel pencil rod rebar Perlite insulation Thermal insulating blanket 1 Wood burning oven model Prima 120 3 conc Slab with 6...

Page 18: ...burning oven is not provided with a chimney system The oven must be connected to any listed chimney assembly The chimney assembly must be installed in accordance with NFPA 211 Standard for Chimneys Th...

Page 19: ...d spark arrestor Your Mugnaini wood fired oven was evaluated to meet the fire safety standards of UL 737 Eighth Edition by Intertek Testing Laboratories ETL Listing Report J20020124 www interteksemco...

Page 20: ...0 30 30 30 30 30 0 6 9 12 18 24 36 48 48 6 48 9 48 12 48 18 48 24 0 6 9 12 18 24 36 48 48 6 48 9 48 12 48 18 48 24 2 3 1 4 4 4 3 4 6 1 4 8 11 14 1 4 15 1 2 16 1 4 17 18 1 2 20 4 6 1 4 7 3 4 9 1 4 12 1...

Page 21: ...fired oven 1 Direct vent with a factory built chimney 2 Direct vent with a masonry chimney using clay flue liner FACTORY BUILT CHIMNEY Per NFPA 211 wood burning ovens are required to use chimneys list...

Page 22: ...LIQUIDS TO START OR FRESHEN UP A FIRE IN THIS OVEN KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE OVEN WHEN IN USE NEVER USE WATER TO LOWER TEMPERATURE INSIDE THE OVEN OR TO EXTINGUISH THE FIRE USE SOLID WO...

Page 23: ...en used for a long period it is recommended to allow one full day to slowly bring the oven up to maximum temperature SELECTING THE PROPER WOOD FOR YOUR OVEN You should use only seasoned hardwood moist...

Page 24: ...you intend on keeping a fire going We will use this partially closed position during the curing process to control any smoke roll out HOW TO MEASURE OVEN TEMPERATURE Mugnaini wood fired ovens will se...

Page 25: ...ont to back 3 Weber brand fire starters 1 2 3 CURING THE OVEN The goal is to increase the temperature of the oven at a rate of 50 75 F per hour by making a small fire every hour Use the chart at the e...

Page 26: ...er the fire goes out place the door through the arch into the fully closed position The door should stay in place unit the next day s fire Day 2 5 hr time commitment Record the oven temperature in the...

Page 27: ...h the arch into the fully closed position The door should stay in place unit the next day s fire Day 4 4 hr time commitment Repeat the hourly fires starting slowly and then adding enough wood to creat...

Page 28: ...re with a thermometer do not be alarmed Most of what you read with an infrared thermometer gun is the surface temperature which will regulate down in the pauses between fires FIRE PLACEMENT If you hav...

Page 29: ...e the oven temperature at a rate of 50 75 F per hour until the daily target temperature is reached Close door until the next day s firing DAY 1 DAY 2 Time Temperature Time Temperature Target 250 F max...

Page 30: ...D ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF MUGNAINI UNLESS SUCH OTHER WARRANTIES OBLIGATIONS OR LIABILITIES ARE EXPRESSLY AGREED TO IN WRITING BY MUGNAINI This warranty shall not apply a to...

Page 31: ...ION OF STATUTE OR REGULATION STRICT PRODUCTS LIABILITY CONSUMER PROTECTION STATUTES OR DECEPTIVE TRADE PRACTICES STATUTES OR 2 DAMAGES INCLUDING SETTLEMENTS JUDGMENTS AND AWARDS AND COSTS INCLUDING AT...

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