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heating values

  1. HVAC
    Got a new furnace, and my checking shows its over-firing by about 25%. Called Northwest Natural Gas. I'm told the energy content is ~1020-1040 BTU/ft^3 The furnace is rated 60,000 BTU input, and there is a section about checking furnace input and there's a chart that shows at 1040BTU/ft^3, it...