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  • Gas Heater Category 3 Stainless Steel Vent Kits - 4650109
  • Gas Heater Category 3 Stainless Steel Vent Kits - 4650109
  • Gas Heater Category 3 Stainless Steel Vent Kits - 4650109
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Gas Heater Category 3 Stainless Steel Vent Kits

Item #: 4650109
This item ships by UPS GROUND
FREE SHIPPING
(not available to AK and HI)
Price: $269.00
    Availability:
    Availability: In Stock - Usually ships in 1 to 2 days.
    VENT KIT:
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    Quantity:
    Vent Size
    Compatible Gas Heaters
    4 inch Modine Hot Dawg - HD100 & HD125   Mr. Heater / Big Maxx - MHU50, MHU80, MHU125   Reznor - UDX & UDZ (up to 125K BTU)   Dayton - Low profile unit heaters up to 120K BTU

    These universal heater exhaust kits come complete with everything needed to vent a gas heater up to 3' (additional pipe and/or a drip tee may be required for some units). These 3' stainless steel, gas tight, category 3 vent systems are approved for horizontal installation in residential and commercial applications for gas unit heaters. Most durable, longest lasting, and lowest maintenance vent system available for Mr. Heater, Modine Hot Dawg, Dayton, Reznor, and other brands of gas unit heaters.

    4" Garage / Shop Heater Vent Kit Includes
    For structures with an exterior wall 4" to 7" thick.
    (1) heater adapter, (1) 36" vent pipe, (1) wall thimble, and (1) termination cap

    4" Greenhouse Heater Vent Kit Includes
    For greenhouses and structures with walls less than 4" thick.
    (1) heater adapter, (1) 36" vent pipe, (1) firestop flashing, (1) storm collar, and (1) termination cap

    Vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications.

    Category 3 Gas Heater Vent Pipe and Fittings
    What is UL 1738? In short, it is a US standard for gas venting systems required in category 3 applications. Category 3 refers to positive vent pressure which is created by exhaust blowers in unit heaters. These vent systems must be constructed of corrosion resistant stainless steel, contain gaskets for sealing, and have a built in mechanical locking band among other requirements. All category 3 vent pipe and fittings offered are single wall.

    Features
    • Made of 316L corrosion resistant stainless steel
    • Built-in high temp silcone gaskets for air tight seal
    • Built-in locking band to insure a secure fit (no hardware needed)
    • UL1738 approved for category 3 venting applications

    Item # 46501, 4650109, 4650108C

    Overall Customer Rating of 4 Reviews:
    review-star review-star review-star review-star review-star

    Exhaust pipe

    Kit came with everything I needed. order was shipped quickly and I received in two days.

    gas heater vent.

    I just got the vent installed. It looks great and was easy to install. I like the way the pipes slide together making a clean fit.

    Vent kit plus

    I purchased a prepacked 4" stainless steel vent kit along with some additional parts to complete the installation for a hanging furnace in my 40' x 45' hobby garage. The order was shipped immediately and arrived in perfect condition. The kit also came with their "red envelope" of installation guidelines which were very helpful. During the installation process I needed a longer pipe and that was shipped immediately as well. The folks at ACF were great to work with and allowed me to return the pipe from the kit that I didn't need. I highly recommend working with these folks and the ACF Greenhouse Company.
    review image   review image  

    No problems

    Installation very straight forward, parts appear well made and being stainless is a big factor.
    I like the seals between the pipes, much better than just a clamp.

    Read all reviews!
    Contact Us

    Contact Us

    ACF Greenhouses
    380 Greenhouse Drive
    Buffalo Junction, Virginia 24529
    1-888-888-9050 toll free

    We Accept