Summary
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Earthcore Industries
MAGNUM Series Fireplace
1. Chimney Installation and Draft
Chimney systems will only draft properly when they are installed according to the instructions in an appropriate loca-
tion and with the proper chimney height. Installing the fireplace according to the instructions, choosing an appropriate
location, and choosing an appropriate chimney height are the responsibility of the designer and the building contractor.
Tightly insulated and sealed homes, two-story interior spaces, and high-vaulted ceilings can cause negative air pres-
sures within the house, which can impair drafting performance. HVAC return air ducts near the fireplace opening will
adversely affect the fireplace drafting performance.
It is the responsibility of the designer, the building contractor, and their mechanical contractor to determine that the
building’s internal air pressures are conducive to positive fireplace drafting.
Avoid placing any fireplace in an area near tall trees, tall buildings, or high land masses. These structures can reduce
ambient air flow pressure as well as produce down drafts, either of which can impair fireplace drafting performance.
Earthcore Industries L.L.C. does not warrant drafting and is not responsible for it.
2. Fireplace Curing Instructions
It is critical that the Isokern masonry elements in the firebox and smoke dome assembly be dry before firing of the
unit. Moisture left in the components from exposure during storage and shipping, as well as moisture from the instal-
lation phase, must be eliminated before the unit is put to its intended use.
The first step in reducing the ambient moisture is to be sure that the completed fireplace rest totally in a dried-in set-
ting for a minimum of 28 days after construction of the unit is complete.
The next step in curing the fireplace is to be sure that the first five or six fires are of short duration. The first fire of the
unit can take place once the minimum 28-day drying period has passed. This fire should be especially short.
Start the first fire slowly with a small amount of paper and kindling (small dry wood splits or twigs) and a maximum
load of four to six pounds of dry firewood, estimated to be no more than two or three logs, each of about three inches
(3”) to four inches (4”) in diameter. The first fire should burn for no more than 30 to 60 minutes and then allowed to go
out. Do not refuel the fireplace during the first lighting. A cooling-off period of 24 hours, at a minimum, should follow
the first fire.
The second fire should be the same as the first fire. It should burn for no more than 30 to 60 minutes and allowed to
go out. Do not refuel the fireplace during the second lighting. A 24-hour cooling-off period must be observed following
second lighting.
After the first and second fires, continue use of the unit with three or four small fires of short duration (60 minutes or
so) and small fuel load.
After these first five or six small fires of short duration, normal use of the fireplace can proceed. For normal use, the
maximum recommended fuel load is 12 to 16 pounds of dry firewood at a time. This fuel load is considered to be
approximately three to five cured hardwood logs of about three inches (3”) to six inches (6”) in diameter. As the fire
burns down, refueling should be only one or two logs added at a time.
IMPORTANT:
Do not burn construction debris or trash of any kind in the fireplace. Whereas it is not uncommon for
construction debris and refuse to be burned in a fireplace by site personnel on a project that is under construction, this
activity must be avoided. It is the responsibility of the building contractor to ensure that the required dry-in period is
met and that the required lighting sequence is performed by the owner or by the owner’s agent.
3. Log Grates
Log grates are required for burning solid fuel in the Isokern fireplace. Grates allow for easy air flow up through the
burning logs, thus creating a more complete and efficient burning of the fuel.
