6 HearthStone Quality Home Heating Products, Inc. ®
Installation Requirements
Choose a place to install your Pizza Oven, outdoors, in an open, well-ventilated area.
Inspect this location to make sure that the oven and chimney pipe will have the required clearance from combustible
materials that are near the oven (see page 6). Combustibles include walls, floor, ceiling, fences, sun shades, curtains, and
furniture. You must carefully consider the clearances to all of these combustibles before actually connecting your oven.
Only install the oven on a flat, stable surface. If needed, the feet of the oven are adjustable to level the unit.
If a wheeled cart or table is used, the wheels must be locked or chocked when in use and permanently fixed if a through
the roof venting system is installed.
If the floor or table where the unit will be installed is made of combustible material, then a non-combustible floor protector
is required between the floor/table and the oven. An example of a non-combustible floor or table protector is a surface
constructed with a continuous layer of tile, brick, slate, glass, steel or another non-combustible facing. There is no R-value
requirement under the appliance. Any exposed surface, including the floor in front of the oven must also be protected to 18”
from the front of the door, and 2” either side of the oven to protect against falling coals or embers.
For any installation that will cause any part of the oven or the flue (chimney) or any component of the flue to be
within 36” of wood or any other combustible, follow NFPA Code 211 Protected Surfaces guidelines.
Please refer to NFPA Code 211 for specifications and complete details. You can obtain this information directly from the
NFPA.
National Fire Protection Agency: Batterymarch Park, Quincy, MA 02269 1-800-344-3555 www.nfpa.org
Flue Requirements
Flue requirements for a free-standing or permanent installation.
Your pizza oven is supplied with a 20” section of 5” diameter flue pipe and a flue cap. These must be installed for safe
operation of your oven. Your oven must be installed without any obstructions or combustible objects over the flue cap,
as in an open patio without a roof covering.
If you wish to install your oven permanently under a roof overhand, or in a semi-enclosed patio; you must first check all
local building codes for restrictions.
Extending the flue through a roof penetration is possible, if permitted by local laws. You will need to use an alternative flue
pipe manufacturer for a through-the-roof installation. Your dealer can help you with this or redirect you to a chimney
professional.
If extending the flue beyond the flue pipe supplied with the unit, UL (US) and/or CSA (Canada) certified venting system;
referring to the UL/CSA certified pipe manufacturer’s instructions. In the absence of a certified system, follow NFPA 211
installation standards to properly guide your installation. We recommend using Duravent 5” chimney system products,
though other UL/CSA listed chimney products are available through other manufacturers.
Extending the flue may add the necessity of adding a flue damper to maintain good oven temperatures.
DO NOT INSTALL YOUR PIZZA OVEN UNDER A ROOF OR IN A CLOSED PATIO ROOM WITHOUT A UL LISTED
THROUGH-THE-ROOF CHIMENY SYSTEM INSTALLED. CHECK WITH YOUR LOCAL BUILDING CODES BEFORE
INSTALLING IN A CLOSED IN PATIO TYPE ROOM.