Page 1
CO N S T R U C T I O N M A N UA L I TA L I A N WO O D - F I R E D OV E N Includes: Venting and Oven Curing Instructions Mugnaini Residential Wood-Fired Ovens have been tested to: UL 737–2007 ...
This construction manual contains information regarding the construction of a support base and assembly of your PRIMA 120 AOS Oven. The foundation and base provide a support structure for the oven and serve as a wood storage compartment. Concrete masonry units (CMU’s), cast-in-place concrete or similar materials are typically used to construct the base on a poured-in-place, reinforced concrete foundation.
Fire Starting Tools ..............................23 Using The Door ............................... 24 How to Measure Oven Temperature ....................... 24 Starting a Fire ................................25 Curing The Oven ..............................25 Curing Schedule ..............................29 LIMITED WARRANTY ............................... 30 Prima 120 AOS Manual Mugnaini Imports, Inc.
INTRODUCTION W120 Oven The following is intended to be used as a general reference for the installation of the Mugnaini “PRIMA 120” wood-burning oven, and more specifically for those individuals (like yourself, your architect, or your contractor) who will be involved with the design and the construction of your oven.
5’9” in 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. (wood storage area) Prima 120 AOS Manual Mugnaini Imports, Inc.
Page 6
(minimum) as support for shelf. Pour a leveled 3” concrete slab on top of the construction paper, sand base and to the outside edge of block perimeter. Once cured, go to Section 3 — Oven Assembly. Prima 120 AOS Manual Mugnaini Imports, Inc.
Using refractory mortar, place each floor element in the following succession (Item 1 thru 10). Floor pieces should fit together as snug as possible. Note: Due to the handmade characteristics of this product, a 1/8” gap may exist between floor elements. DO NOT mortar or grout in between the floor element joints. The natural gap between floor elements is designed to allow for thermal expansion. Prima 120 AOS Manual Mugnaini Imports, Inc.
DO NOT place mortar in the crown element joints. A small gap of roughly ¼”– ½” will also exist between the oven floor and crown elements. Prima 120 AOS Manual Mugnaini Imports, Inc.
(Approximately 3” wide x ½” thick over the outside perimeter). STEP 5 – MORTARING CROWN JOINTS Wet sponge joints. Apply refractory mortar over the joints. (Approximately 4” wide x ½” thick over each joint). Do not allow mortar to enter joints. Prima 120 AOS Manual Mugnaini Imports, Inc.
Note: Ensure the flue manifold is level on top of crown elements. STEP 7 – INSULATION Cover the entire oven with 2-layers of 1” or 1-layer of 2” Thermal Insulation Blanket (Item K). Prima 120 AOS Manual Mugnaini Imports, Inc.
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 pg. 18 for “Oven Venting Instructions”. Prima 120 AOS Manual Mugnaini Imports, Inc.
ENCLOSING THE OVEN Your Mugnaini Oven is now ready for the final step of the construction process – which relies entirely on your level of creativity and desired architectural effect. The oven 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 and around the oven crown itself.
½” plywood. Place a 2” diameter metal weatherproof air vent on the back near the top of your structure. You may use nonflammable roofing materials of your choice. (e.g. Slate, Roof Tiles, Metal etc.) Prima 120 AOS Manual Mugnaini Imports, Inc.
Page 14
Cantilevered hearth extension, subject to owers preference. 23” combustible ceilings. Arch opening 32” Arch width PRIMA 120 FLOOR AND BASE PLAN Chimney cap with spark arrestor Simpson Dura-tech or equivalent Tile, plaster or metal roof cap Roof material of choice 1/2”...
Perlite granules. Place a 2” diameter metal weatherproof air vent on the back near the top of your structure at the chimney to prevent condensation within the oven enclosure. Prima 120 AOS Manual Mugnaini Imports, Inc.
Page 16
After second coat of stucco has cured, you may now paint or use finished stucco coat. NOTE: If placing the oven under an overhang or patio structure follow local Building Codes and Fire Marshall requirements for passing the chimney through combustible ceilings. Prima 120 AOS Manual Mugnaini Imports, Inc.
Page 17
10” x 38” (min width) Cantilevered hearth extension, subject to owers preference. 23” Arch opening 32” Arch width PRIMA 120 FLOOR AND BASE PLAN Chimney cap with spark arrestor Simpson Dura-tech or equivalent Tile, plaster or metal roof cap 7/8” exterior cement plaster 1/4”...
OVEN VENTING INSTRUCTIONS Residential Model Wood-Fired Ovens OVERVIEW Your Mugnaini wood-fired oven has been listed to the UL Standard for Safety for Fireplace Stoves, UL 737 8th edition. These requirements cover fireplace stoves that are freestanding assemblies having fire chambers intended to be operated open to the room with the door either open or closed.
RECOMMENDED CHIMNEY PIPE Mugnaini Imports recommends the Simpson DuraTech chimney pipe. Simpson products can be found on the web at www.duravent.com. Proper planning of the chimney venting system is essential for a safe and successful installation. • DuraTech is an all-fuel chimney system designed for appliances that require a UL 103 chimney system. With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers safety and performance.
IF CREOSOTE HAS ACCUMULATED IT SHOULD BE REMOVED TO REDUCE THE RISK OF A CHIMNEY FIRE. VENTING There are two approved methods of venting your Mugnaini wood-fired oven. 1. Direct vent with a factory built chimney. 2. Direct vent with a masonry chimney using clay flue liner.
CURING YOUR MUGNAINI WOOD-FIRED OVEN This section covers the following Mugnaini series models: Piccolo 80 Medio 100 Medio 110 Prima 100 Prima 120 ♦ ♦ ♦ ♦ READ ALL INSTRUCTIONS BEFORE STARTING A FIRE AND CURING YOUR OVEN FOR USE WITH SOLID WOOD FUEL ONLY WARNING FOLLOW THE COMPLETE CURING SCHEDULE BEFORE COOKING IN THIS OVEN.
OVEN CURING INSTRUCTIONS Your Mugnaini wood-fired oven is made from Refrattari Cotto or refractory clay. The water used to form the clay must be cooked out before your oven can be put into use. Curing is the process of slowly heating an oven to first drive out the moisture from the oven components and surrounding mass, and then to temper the oven dome.
NOTE: For curing your oven read the temperature of the dome in the center of the oven walls just below the curve. Measure left and right sides of the oven and average the temperature. This method is for curing only—see diagram below for details. Prima 120 AOS Manual Mugnaini Imports, Inc.
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. Prima 120 AOS Manual Mugnaini Imports, Inc.
Page 26
After 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. Piccolo 80 Medio 100 Medio 110 Prima 100 Prima 120 ♦ ♦ ♦ ♦ Prima 120 AOS Manual Mugnaini Imports, Inc.
Page 27
IF FLAMES EXTEND BEYOND THE OVEN DOOR OPENING AND UP THE EXHAUST FLUE – YOU ARE OVER FIRING THE OVEN. CONGRATULATIONS —you have fully cured your pizza oven! You can now fire your oven as per the operating instructions and start cooking. Prima 120 AOS Manual Mugnaini Imports, Inc.
Use the metal peel to shovel the ashes out of the oven. TECHNICAL ASSISTANCE We want your experience to be rewarding. Please call the office at 888.887.7206 if you have any questions or need help understanding these steps. Prima 120 AOS Manual Mugnaini Imports, Inc.
DAY 1 DAY 2 Time Temperature Time Temperature Target 250° F maximum Target 400° F maximum DAY 3 DAY 4 Time Temperature Time Temperature Target 600° F maximum Target Burn off all soot Prima 120 AOS Manual Mugnaini Imports, Inc.
This warranty shall not apply: (a) to any Oven or related equipment or accessory that is improperly installed or maintained; (b) to products resold in other than Mugnaini original packaging or to Ovens modified or altered by the Original Purchaser; (c) to failure or malfunction of the Oven or any related accessories that is caused by improper use or any failure to assemble or install pursuant to factory instructions; to any Oven or related accessories that...
Page 31
Mugnaini’s determination with regard thereto shall be final and binding upon the Original Purchaser. If it is found that Mugnaini’s Oven has been returned without cause and is still serviceable, Original Purchaser will be notified and the Oven returned at Original Purchaser’s expense. In addition, a charge for testing and examination may, in Mugnaini’s sole and reasonable discretion, be made...
Need help?
Do you have a question about the PRIMA 120 and is the answer not in the manual?
Questions and answers