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Gas company did not allow un-vented

Discussion in 'Fuel Gas Codes' started by aarothepharo, Feb 3, 2019.

  1. aarothepharo

    aarothepharo Registered User

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    I helped my cousin put a 30,000 BTU natural gas wall mount heater in the living room. It was a direct vent / un-vented heater. When the gas company came to inspect they would not turn the gas on saying it had to be a vented heater. North Carolina allows un-vented heaters so I poured though the fuel gas code and I cannot find any reason the house would require a vented heater.

    Any ideas?

    Aaron
     
  2. cda

    cda Sawhorse

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    Welcome
     
  3. cda

    cda Sawhorse

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    I wish I was into heaters

    What is a direct vent/ in vented heater

    I have an idea

    Can you post a link to the actual model.


    It may be thier company policy

    Do you have a link to them to post
     
  4. ICE

    ICE Sawhorse

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    Somebody better weigh in soon.....this person may not be with us for long.
     
  5. cda

    cda Sawhorse

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    This is 2009.

    and same in the 2012



    501.8 Equipment not required to be vented.
    The following listed appliances shall not be required to be vented.
    1. Ranges.
    2. Built-in domestic cooking units listed and marked for optional venting.
    3. Hot plates and laundry stoves.
    4. Type 1 clothes dryers (Type 1 clothes dryers shall be exhausted in accordance with the requirements of Section 613).
    5. A single booster-type automatic instantaneous water heater, where designed and used solely for the sanitizing rinse requirements of a dishwashing machine, provided that the heater is installed in a commercial kitchen having a mechanical exhaust system. Where installed in this manner, the draft hood, if required, shall be in place and unaltered and the draft hood outlet shall be not less than 36 inches (914 mm) vertically and 6 inches (152 mm) horizontally from any surface other than the heater.
    6. Refrigerators.
    7. Counter appliances.




    8. Room heaters listed for unvented use.





    9. Direct-fired make-up air heaters.
    10. Other equipment listed for unvented use and not provided with flue collars.
    11. Specialized equipment of limited input such as laboratory burners and gas lights. Where the appliances and equipment listed in Items 5 through 11 above are installed so that the aggregate input rating exceeds 20 British thermal units (Btu) per hour per cubic feet (207 watts per m3) of volume of the room or space in which such appliances and equipment are installed, one or more shall be provided with venting systems or other approved means for conveying the vent gases to the outdoor atmosphere so that the aggregate input rating of the remaining unvented appliances and equipment does not exceed the 20 Btu per hour per cubic foot (207 watts per m3) figure. Where the room or space in which the equipment is installed is directly connected to an-other room or space by a doorway, archway, or other opening of comparable size that cannot be closed, the volume of such adjacent room or space shall be permitted to be included in the calculations.




    https://www.ncdoi.com/OSFM/Engineering_and_Codes/Documents/2009_NCBuildingCode_amendments/approved/2009NCFuelGas.pdf
     
    #5 cda, Feb 3, 2019
    Last edited: Feb 4, 2019
  6. Mark K

    Mark K Platinum Member

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    What does state law say about authority of gas company vs building regulations?
     
  7. aarothepharo

    aarothepharo Registered User

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    Yeah guys it's crazy. We followed all other codes. The fuel company had no problem with our plumbing just the vented vs unvented.
     
  8. steveray

    steveray Sawhorse

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    Do you have a link to the manufacturers installation instructions?
     
  9. ICE

    ICE Sawhorse

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    A direct vent wall furnace is a vented appliance. Trust the Gas Company.
     

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