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  1. #1
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    Oct 2010
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    Default Electric Range venting question.

    The electric range vents directly up and to the roof.
    It appears to be using the abandoned oil furnace venting.
    Any restrictions?v2.JPGv1.JPG

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  2. #2
    Join Date
    Apr 2013
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    High Springs, Florida
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    Default Re: Electric Range venting question.

    If it is properly sized and installed I don't have a problem with it.


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  3. #3
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    Default Re: Electric Range venting question.

    Quote Originally Posted by Roy Lewis View Post
    If it is properly sized and installed I don't have a problem with it.
    Thanks Roy.
    All the best.

    Robert Young's Montreal Home Inspection Services Inc.
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  4. #4
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    Default Re: Electric Range venting question.

    That venting is just going to collect grease from the grease laden air and drip/run back down the walls of the vent.

    That vent pipe (what material was it made of) is likely not approved or rated for positive pressure - an exhaust fan creates a positive pressure within the duct) or grease laden air (maybe, but maybe not).

    From the IRC:
    - SECTION M1503 RANGE HOODS
    - - M1503.1 General.
    - - - Range hoods shall discharge to the outdoors through a single-wall duct. The duct serving the hood shall have a smooth interior surface, shall be air tight, shall be equipped with a back-draft damper, and shall be independent of all other exhaust systems. Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building.
    - - - - Exception: Where installed in accordance with the manufacturer’s installation instructions, and where mechanical or natural ventilation is otherwise provided, listed and labeled ductless range hoods shall not be required to discharge to the outdoors.
    - - M1503.2 Duct material.
    - - - Single-wall ducts serving range hoods shall be constructed of galvanized steel, stainless steel or copper.
    - - - - Exception: Ducts for domestic kitchen cooking appliances equipped with down-draft exhaust systems shall be permitted to be constructed of schedule 40 PVC pipe and fittings provided that the installation complies with all of the following:
    - - - - - 1. The duct is installed under a concrete slab poured on grade;
    - - - - - 2. The underfloor trench in which the duct is installed is completely backfilled with sand or gravel;
    - - - - - 3. The PVC duct extends not more than 1 inch (25 mm) above the indoor concrete floor surface;
    - - - - - 4. The PVC duct extends not more than 1 inch (25 mm) above grade outside of the building; and
    - - - - - 5. The PVC ducts are solvent cemented.

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  5. #5
    Join Date
    Oct 2010
    Location
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    Default Re: Electric Range venting question.

    Quote Originally Posted by Jerry Peck View Post
    That venting is just going to collect grease from the grease laden air and drip/run back down the walls of the vent.

    That vent pipe (what material was it made of) is likely not approved or rated for positive pressure - an exhaust fan creates a positive pressure within the duct) or grease laden air (maybe, but maybe not).

    From the IRC:
    - SECTION M1503 RANGE HOODS
    - - M1503.1 General.
    - - - Range hoods shall discharge to the outdoors through a single-wall duct. The duct serving the hood shall have a smooth interior surface, shall be air tight, shall be equipped with a back-draft damper, and shall be independent of all other exhaust systems. Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building.
    - - - - Exception: Where installed in accordance with the manufacturer’s installation instructions, and where mechanical or natural ventilation is otherwise provided, listed and labeled ductless range hoods shall not be required to discharge to the outdoors.
    - - M1503.2 Duct material.
    - - - Single-wall ducts serving range hoods shall be constructed of galvanized steel, stainless steel or copper.
    - - - - Exception: Ducts for domestic kitchen cooking appliances equipped with down-draft exhaust systems shall be permitted to be constructed of schedule 40 PVC pipe and fittings provided that the installation complies with all of the following:
    - - - - - 1. The duct is installed under a concrete slab poured on grade;
    - - - - - 2. The underfloor trench in which the duct is installed is completely backfilled with sand or gravel;
    - - - - - 3. The PVC duct extends not more than 1 inch (25 mm) above the indoor concrete floor surface;
    - - - - - 4. The PVC duct extends not more than 1 inch (25 mm) above grade outside of the building; and
    - - - - - 5. The PVC ducts are solvent cemented.
    The Galvanized. 26 gauge. No hack draft damper.

    I thought the same darn thing. Grease will just collect on the walls and gravity will do the rest.

    I looked at the IRC under appliance venting.
    Much thanks.

    Robert Young's Montreal Home Inspection Services Inc.
    Call (514) 489-1887 or (514) 441-3732
    Our Motto; Putting information where you need it most, "In your hands.”

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