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Central ND | I wouldn't make it long term and I would open up for ventilation. Neighbor used one of those exclusively for a few years in a tightly insulated shed. Day and night, 24-7 all winter long for several years. They though it was the next best thing to sliced bread and almost as good as actually fixing the furnace.(sarcasm) anyway, It didn't bother them to work in there but honestly I could never catch my breath when i was in that shed. it seemed VERY SHORT on oxygen in there to me. | |
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