Re: UNIONS ON GAS PIPE

You obviously aren't a licensed plumber.  Unions are only approved outdoor, which is at your meter location(bushings are also illegal unless outside, and this is because the gas company will use whatever they want because they have authority), or on the downstream side of the gas valve of an appliance.  And they only approve them there because a flexible connecter is basically a union, and some manufacturers recommend that you use a hard connection to the appliance, which would constitute a union.  Read your code book brother before you put bad advice out to the public.

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