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gas furnace flue gasket
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  1. HVAC
    I am replacing my old furnace with a Ruud model # RGPR-12EARMR. The old furnace has a 5" Metal-Fab B1 twist assembly flue pipe. The new furnace has a 3" outlet and specifies an immediate transition to 5" flue for the BTU of this model. The furnace also specifies that screws on the flue outlet...
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