Annex 11 (4 pages)
pg. 1
Manufacturers instruction for testing procedure
according to ASTM E3053-17
Morsø 2B Classic 2020 High Fire Procedure
Test Fuel:
Recommended test fuel species is beech.
The guidelines of the Cordwood standard E3053-17 are followed in regards of moisture content and weight
ratios for kindling, startup, core and sub loads.
The nominal length for High Burn core and sub load is 12’’ (30 cm.)
The usable firebox volume is 0.686199 ft
3
(0,019431 m
3
)
Kindling and Startup:
The Start-up load is added to the kindling load. Ignited together in the same batch.
A “top-down” approach is used when igniting the fire.
The firebox is deep and narrow. To make things simple keep the length of kindling and start-up
pieces just about the same lenght as the minimum width of the firebox.
Left to right:
Startup load. Consist of 6-8 pieces.
Weight of each pieces varies from 100-
150 grams. Diameter 3 cm to 5 cm.
Kindling, medium size. Consist of pieces
with a weight of 30-60 grams. Diameter 1
cm to 2 cm.
Kindling, small size. Consist of pieces with
a weight up to 20 grams. Diameter
approximate 0.5 cm
Start-up load at the bottom, distributed in two
layers. Each layer is perpendicular to each other.
Next, on top of the startup load, the medium sized
kindling is distributed in two to three layers. These
layers are also perpendicular to each other
Finally, the smallest kindling pieces is placed
loosely on top, all in the same direction, stove
front to stove back.
On top of the wood, place one or two fire-starters.
Re-arrange a couple of the top kindling pieces so
they support the fire-starters on the sides. This
will prevent the fire-starters from falling off and
ease ignition of the wood.
Keep a ≈ 2’’ distance from the load to the baffle.
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