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Are all chimneys required to be lined?
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Are HVAC contractors required to be licensed?
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Are unvented gas-fired space heaters permitted in the City of Oregon?
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How far from the property line is an air conditioning condensing unit required to be set back?
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How much does a permit cost?
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Is a carbon monoxide detector mandatory in a dwelling?
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Is combustion air always required to be piped in from the outside?
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When do I need an HVAC permit?
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