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Flex for last 3 feet of gas line

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adambnyc
adambnyc Member Posts: 260
in THE MAIN WALL
Hey all and happy heating season!

Quick question. In NY, Staten Island, is it permissible to use a flex gas line at the last 3 feet or so to a hot water heater? I’m replacing a friends HW and it would be good if I didn’t have to start threading black pipe.

Thanks!

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  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    Home Depot installers do it all the time. I'd rather use the black pipe. If you measure it out, it's usually only one or 2 threads to cut.

    There was an error rendering this rich post.

  • ChrisJ
    ChrisJ Member Posts: 15,708
    edited October 2018
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    Some places require flex line for earth quake reasons.

    Mine is plumbed all in black iron, but I'm just a DIYer.


    @STEVEusaPA Home Depot "installed" our washer and drier.
    They hooked the hot and cold backwards, and no pipe dope on NPT connections for gas dryer...……. Nice eh? No one that works for them should be allowed anywhere near electrical or gas work.


    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
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    Natural gas I assume?
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
  • adambnyc
    adambnyc Member Posts: 260
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    Yes, NG
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
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    Can you simply buy a coupling and a nipple and maybe an elbow, then a 12" or so appliance connector to the water heater? Looks more professional IMO than some long azz flex.....
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
  • adambnyc
    adambnyc Member Posts: 260
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    @Solid_Fuel_Man that’s exactly what I’m doing. When I said 3 feet of flex gas, I was talking about an appliance connector.
  • adambnyc
    adambnyc Member Posts: 260
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    Thanks all! We can close this one out

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