Magnum 2824, 2832ST, 3224, 3228, 3528 Owner's Manual

MAGNUM®

BUILD-IN FACTORY BUILT MASONRY FIREPLACE

OWNERS MANUAL

Installation, Operation and Maintenance Guide

Models

2824 – 2832ST – 3224 – 3228 – 3528 – 3536ST – 6028TV

KEEP THESE INSTRUCTIONS FOR FUTURE USE

WARNING

Read entire manual before installation and operation of the Magnum Fireplace. Failure to follow these instructions may result
in product warranty being voided, property damage, bodily harm or even death. Always disconnect the power to the blowers
(if you have the blower option) before attempting service work.
DO NOT connect the Fireplace to a chimney serving another appliance.
ALL MINIMUM CLEARANCES TO COMBUSTIBLES MUST BE FOLLOWED.

FOR YOUR SAFETY

When installing your Magnum Fireplace, particular attention needs to be paid to fire protection. If the fireplace is not properly
installed, a house fire may result. For your safety, follow the installation and operations instructions provided. If you have a
question, contact local building officials about restrictions and installation requirements in your area.

CAUTION

Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter fluid, or similar liquids to start or “freshen” up a fire
in this fireplace. Keep all such liquids well away from the fireplace at all times. If you are using processed solid fuel fire logs,
use only fire logs that have been evaluated for use in this type of fireplace. Do not poke or stir the logs while they are burning.
Refer to the package instructions for their proper use and warnings.

DO NOT USE A FIREPLACE INSERT OR OTHER PRODUCTS NOT SPECIFIED FOR USE IN THIS PRODUCT

NOTE

OUTSIDE COMBUSTION AIR MUST BE USED ON THIS FIREPLACE TO AVOID

DEPRESSURIZATION OF YOUR HOME.
The Magnum Fireplace has been tested with our air-tight door system. The model ACI-B Cast Iron
Door system must be used on this product.

AMERICAN ENERGY SYSTEMS, INC. GRANTS NO WARRANTY, IMPLIED OR STATED,
FOR THE INSTALLATION OR MAINTENANCE OF THE FIREPLACE AND ASSUMES NO

RESPONSIBILITY FOR ANY CONSEQUENTIAL DAMAGE(S).

American Energy Systems, Inc.

. – 150 MICHIGAN ST SE – HUTCHINSON, MINNESOTA 55350

TECHNICAL SERVICES (320)-234-0743 PHONE [phone] FAX – [phone]

[e-mail]

A FAMILY OF HEARTH PRODUCTS

- www.hearthdirect.com

MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 1 -

TABLE OF CONTENTS

PAGE

MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 2 -

Dear Valued Magnum Customer,

I would like to take this time to thank you personally for the purchase of your
Magnum Fireplace. You have purchased a product that has over the past 30
years earned its reputation for unmatched quality and efficiency.

The added features of this fireplace will enable you to have years of trouble­free operation. Please read this manual completely through before attempting
to install this unit. It will give you step by step instructions for proper
installation and operation.

Sincerely,

Mike Haefner
Owner
American Energy Systems, Inc.

MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 3 -

INSTALLATION

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.

MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 4 -

IMPORTANT TIPS

• Do not allow the steel fireplace unit to come into immediate contact with masonry or mortar.

• Fiberglass insulation with paper removed should be used as a buffer between steel from fireplace and

any masonry.

• A lintel bar must be used to support brick across the top of the fireplace. Allow a minimum of 1”

space underneath the lintel iron to the top of the unit. Keep mortar from falling on top of the unit by
inserting a strip of fiberglass on the back of the lintel. Remember to remove this insulation strip when
cleaning out the fireplace chamber. All loose mortar must be removed from the top of the fireplace.

• Allow ¼” expansion room between the side of the unit and the front face brick. Also, allow ¼”

expansion along the brick supported by the lintel bar.

A. Foundation Concrete F. Concrete Slab K. Connector Pipe P. Chimney Adapter
B. 8 x 8 x 16 Concrete Block G. Electrical Conduit L. Chamber Top Q. 1” Expansion Space

C. Ground Level H. Hearth Extension M. Top Slab R. Damper Control Rods
D. Insulation Area I. Chamber Walls N. Insulation Space S. Upper Grill & Frame
E. Clean Out Door J. Air Intake O. Air Space T. Lintel Iron

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MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 5 -

CAUTION: The Magnum fireplace and its components have been tested for safety when installed in
accordance with this installation manual. IT IS YOUR RESPONSIBILITY to read all instructions
carefully before and during the installation to assure safe operation and maximum performance of the
unit.

• WARNING: Do not pack the required air space with insulation or other materials.

• NOTE: The lower grill is recommended with every installation. If it is not used, the same 150 square inches of open area

is required.

INSTALLING BLOWERS

Two different styles of blowers are available for Magnum Fireplaces. A hearth mount 465 cfm squirrel­cage design or an interior mount low profile design. NOTE: Low profile fans tend to create more
noticeable air turbulence noise; therefore should be mounted underneath the fireplace toward the back of
the fireplace.

Always allow service access for periodic oiling or motor replacement.

MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 6 -

INSTALLATION

• Excavate a hole to conform to the frost level (approximately 48” deep in the northern climates).

Allow the footing to be in excess of 6” beyond the area needed to install the unit. NOTE: If the unit is
being installed on an existing slab, you need 12” of slab thickness to support the masonry chimney.

• Set up forms and pour the foundation concrete. (A) The foundation must be a minimum of 12 Inches

thick. NOTE: Refer to figure ____ for placement of re-bar. Rebar must be used. If large amounts of
brick or stone are to be used or if masonry chimney 19’ or taller is to be used pour the slab of 18”
thick. The fireplace foundation can be located either on an outside wall or on the inside of the
structure.

• Allow 24 hours minimum to set up before continuing.

• Lay up 8” x 8” x 16” concrete block from foundation up to ground level. Reduce foundation block

dimensions to accommodate 4” of insulation and 4” of face brick (allow more for stone). Continue
laying block bringing up this same dimension to floor level. NOTE: See Figure ____. Decide at this
point whether an ash pit is to be used.

• If the foundation hole is to be used as an ash pit, install an airtight clean-out door above ground level.

(See Figure ____).

• Form up and pour 6” concrete slab. Refer to Re-bar requirements (Figure __). A thermo-break of

insulation must surround this slab if installed on an outside wall (see Figure __). NOTE: If an ash
dump is to be used, leave a 5” x 10” hole in the slab.

ELECTRICIAN’S NOTE: If a fan is to be used, install electrical conduit in the slab allowing
for a serviceable limit switch or thermo-disc to be used. A rheostat to control the blower
speed should be mounted conveniently nearby. Building codes require at least 16” non­combustible hearth extension across the front of the fireplace opening (See your local listing
for more information).

• Construct the inner chamber wall using 4” x 8” x 16” lightweight Hadite block. Note: If installing

adjacent to combustible materials, leave at least 6” of open air space between the inner chamber’s
outside block wall and combustible surface. Cover entire area with fiberglass batts. Do no use
Styrofoam. The two sidewalls of the chamber must be started 4” back from the faceplate to allow for
proper placement of face brick. Allow for a fiberglass insulation buffer between face brick and any
contact with metal. Note: Use metal ties to insure a proper seal when joining the face brick wall to
the inner chamber wall.

• Continue to lay up block until reaching the desired height of the combustion air intake. At this point,

run the 6” intake pipe through the chamber wall and secure with mortar. Leave enough pipe to
accommodate a positive connection from the unit to the outside. The duct must terminate below the
level where it enters the firebox to minimize a reversed flow condition.

MAGNUM MASONRY MANUAL – MAY 1999 PAGE - 7 -