HearthStone WFP-100 Owner's Manual page 18

East-west loads that are built compactly break down slowly when heated, but the amount of wood you can
load is limited because if you put in too many pieces, one may fall against the glass. East-west loads are
excellent for long, low output fires for relatively mild weather.
North-south loads break down more quickly, but much more wood can be loaded at a time. This makes
north-south loading good for high output, long lasting fires for cold weather.
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HearthStone Quality Home Heating Products, Inc ® WFP-100 Model 8420