Magnum 2824 Owner's Manual - page 4
MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 4 -
SAFETY FIRST
• Consult your local building codes first. Failure to comply with these requirements can result in an
installation being denied by the local building inspector. A non-combustible fireplace hearth
extension must extend at least 16” in front and at least 8” beyond the sides of the fireplace opening.
• All framing supports such as plywood or dimensional lumber must be removed from the chamber
before installing facing material.
• Never use rigid insulation (Styrofoam). Always use fiberglass insulation with all paper backing
removed.
• Outside the block chamber any combustible framing or header support materials must be 6” from
block wall on sides and back and must be positioned at least 12” above the top chamber slab. This
entire outer area should be insulated with fiberglass batts with paper backing removed.
• The chamber slab height is determined by the height of the ceiling. Allow 17” minimum from bottom
of slab to ceiling.
• The top of the upper heat vent must be installed directly under the slab to prevent a heat trap.
• Only masonry products or authorized components may be used in the construction of this fireplace.
COLD AIR PREVENTION
• In cold or higher elevation climates, greater precautions against cold air infiltration must be taken.
• Never consider that an uninsullated masonry wall will take the place of a standard properly insulated
outside wall.
• On an outside installation, the wall directly behind or on either side of the fireplace must have
insulated properties equal to or greater than any other outside wall of the building. This insulation
must also extend down to completely surround the foundation slab. (See figure _____)
IMPORTANT NOTE: Never extend the foundation slab or upper heat chamber slab outside insulated
walls or severe cold air conduction will result on facebrick, hearth area, (See figure ____) and through
the lower grill.
• NOTE: Insulate at the point where the outside air vent penetrates masonry wall. A positive outside
shut-off is available through your Magnum Reseller.
• If outside combustion air runs outside the heat chamber for any distance, double wrap the pipe to
avoid frost or condensation.
• Always secure all outside air components with screws so that no leakage can occur at the seams.
INSTALLATION