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dixowk: Temperature inside microwave during cold snap - 2015
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dixowk: Old range hood vent opening behind microwave template
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dixowk: Old range hood vent opening
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dixowk: Microwave template
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dixowk: Two foam board cut half in smaller than vent dimensions
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dixowk: Two inch foam board shimmed in opening
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dixowk: Opening sealed with foam and Great Stuff