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    Napoleon B46 Ascent Builder Series 46 Inch Direct Vent Fireplace - Millivolt

    1,994.30
    List Price: $2,193.73
    Sale Price: $1,994.30
    You Save: $199.43 (9%)
    In Stock.
    * Usually Ships Same Business Day.


    Configure item
    • Color: Black
    • Size: 46 Inches
    • Dimensions: 42" W x 34 5/8" H x 18 5/16" D
    • Large viewing area
    • Back-up control system
    • Glass door for added safety
    • Realistic flames and log set
    • 30" direct vent gas fireplace
    • Comes with pan style burner
    • Pre-wired for wall switch installation
    • Exclusive Phazer log set and glowing ember bed
    See complete product details >>
    Choose Decorative Liner
    • Product Features
      • Color: Sandstone
      • Decorative firebrick panel
      • Attractive sandstone colored finish
      • Designed for the 46" Ascent fireplace
      More Info
      Napoleon Decorative Fire Brick Panels for B46NTR Ascent Fireplaces
      Napoleon Decorative Fire Brick Panels for B ...
      (add $429.00)
      View Product Info
    • Product Features
      • Color: Black
      • Attractive black finish
      • For use with 46" Ascent fireplaces
      • Mirro-Flame porcelain reflective panel
      • Reflects both appearance and warmth of flames
      More Info
      Napoleon Porcelain Reflective Radiant Panels for B46NTR Ascent Fireplaces
      Napoleon Porcelain Reflective Radiant Panel ...
      (add $399.00)
      View Product Info
    Choose Decorative Front
    • Product Features
      • Color: Black
      • Attractive black finish
      • Designed for 46" Ascent fireplace
      • Decorative heritage style safety barrier
      More Info
      Napoleon Decorative Heritage Front for B46N Ascent Series Fireplaces
      Napoleon Decorative Heritage Front for B46N ...
      (add $299.00)
      View Product Info
    • Product Features
      • Color: Black
      • For use with B46NTR(E) Ascent Gas Fireplaces
      • Solid Black Finish
      • Zen Style Decorative Fireplace Front
      • More Info
      Napoleon Zen Decorative Front for B46NT Ascent Fireplaces
      Napoleon Zen Decorative Front for B46NT Asc ...
      (add $299.00)
      View Product Info
    Choose Trim Kit
    • Product Features
      • Color: Black
      • 3" thick
      • Sleek, black beveled finish trim
      • For use with 42" Ascent gas fireplace
      More Info
      Napoleon Premium 3" Bevelled Trim Kit for 46" Ascent Builder Series Fireplaces
      Napoleon Premium 3" Bevelled Trim Kit for 4 ...
      (add $359.00)
      View Product Info
    Choose Blower
    • Product Features
      • Five pounds
      • Fits Ascent Series models
      • Control heat output with thermostat
      • Serious energy savings
      • More Info
      Napoleon AUB Universal Blower Kit for Ascent Series Fireplaces
      Napoleon AUB Universal Blower Kit for Ascen ...
      (add $299.00)
      View Product Info
    Choose Control Option
    • Product Features
      • Provides convenient on/off control
      • Battery-operated, hand-held design
      • Easy-to-read digital screen
      • For use with Napoleon appliances
      • More Info
      Napoleon F45 Hand-Held On/Off Remote Control with Digital Screen
      Napoleon F45 Hand-Held On/Off Remote Contro ...
      (add $149.00)
      View Product Info
    • Product Features
      • Provides convenient on/off and thermostat control
      • Battery-operated, hand-held design
      • Easy-to-read digital screen
      • 2º temperature swing reduces short on/off cycling - if the thermostat is set to 70º F, the fireplace will turn on at 69º F and off at 71º F
      • More Info
      Napoleon F60 Hand-Held Thermostatic Remote Control with Digital Screen
      Napoleon F60 Hand-Held Thermostatic Remote ...
      (add $219.00)
      View Product Info
    • Product Features
      • Digital thermostat for Napoleon appliances
      • Thermostat gives homeowner greater control of temperature
      • Mounts easily on the wall for easy access
      • Digital readout makes operation a snap
      • More Info
      Napoleon Wall-Mounted Digital Thermostat
      Napoleon Wall-Mounted Digital Thermostat
      (add $119.00)
      View Product Info
    Popular Accessories for this Item
    Venting Components
    See all venting components >>

    Below is a list of chimney components that are compatible with this item. If you are comfortable picking the components that you need for venting this item, please choose from the items below. If you need any help at all, please use our FREE advice from our certified fireplace specialists.

    Free Venting Design and Quote
    Quantity:
    Napoleon W175-0053 DuraVent Direct Vent Pipe Adaptor
    Napoleon W175-0053 DuraVent Direct Vent Pipe Adaptor
    If you want to use 4-inch by 7-inch DuraVent direct vent pipe with your Napoleon gas fireplace you're going to need a Napoleon W175-0053 DuraVent Direct Vent Pipe Adaptor.


    List Price: $108.90    Sale Price: $99.00
    Quantity:
    Napoleon 4 Inch Inner Diameter Direct Vent Flex Vent Top Venting Kit
    Napoleon 4 Inch Inner Diameter Direct Vent Flex Vent Top Venting Kit


    List Price: $405.90    Sale Price: $369.00
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    Napoleon Direct Vent Wall Terminal/Vinyl Siding Shield - For 4 Inch x 7 Inch Venting Systems
    Napoleon Direct Vent Wall Terminal/Vinyl Siding Shield - For 4 Inch x 7 Inch Venting Systems
    This square wall terminal or vinyl siding shield by Napoleon is designed for use with 4 in. x 7 in. Napoleon direct vent gas venting systems and fireplaces. Napoleon offers a full line of fireplaces and venting systems, as well as many accessories and components, and are known for efficiency, as well as quality and durability. Don't let selecting a venting system become intimidating, Napoleon has done all the work for you, and makes it easy to select the models and types needed to make your vent installation a success.


    List Price: $262.90    Sale Price: $239.00
    Quantity:
    Napoleon 4/7 Direct Vent Pipe Coupler Kit - For Use with 4 Inch x 7 Inch Venting Systems
    Napoleon 4/7 Direct Vent Pipe Coupler Kit - For Use with 4 Inch x 7 Inch Venting Systems
    This 4/7 coupler kit by Napoleon is designed to be used with direct vent heating appliance ventilation systems. These couplers allow for secure attachment of one piece of chimney liner pipe to another quickly and easily, while not costing your an arm and a leg. Though selecting just the right venting system may seem overwhelming, Napoleon has taken out all the guesswork. This vent pipe coupler is intended for use with all 4 in. x 7 in. Napoleon direct ventilation systems.


    List Price: $56.85    Sale Price: $51.68
    Quantity:
    Napoleon 5 Foot Flexible Aluminum Direct Vent Liner Kit - 4 Inch x 7 Inch
    Napoleon 5 Foot Flexible Aluminum Direct Vent Liner Kit - 4 Inch x 7 Inch
    1 Review
    Purchasing a venting system for a your new appliance is not as hard as they make it sound when you are armed with a Napoleon liner kit. This kit includes a two-piece direct vent liner kit for Napoleon appliances that require 4" x 7" direct vent system, and comes with one (1) 4" x 5' flexible aluminum liner and one (1) 7" x 5' flexible aluminum liner. You chose a Napoleon fireplace because you know the efficiency and dependability found in each Napoleon design, so you know you're getting the best for your hearth when you purchase this liner kit.


    List Price: $130.90    Sale Price: $119.00
    Quantity:
    Napoleon Round Direct Vent Wall Termination Kit - For 4 Inch x 7 Inch Venting Systems
    Napoleon Round Direct Vent Wall Termination Kit - For 4 Inch x 7 Inch Venting Systems
    Some gas ventilation systems end at the roof, and some end at the wall. This vent wall termination kit allows you to ventilate your gas appliance system without having to run a vent pipe all the way up to the roof. Instead, the vent passes through an exterior wall and offers proper ventilation with minimally invasive installation. The termination kit keeps the elements and unwanted critters out of the vent system, and ensures proper airflow to your gas appliance.


    List Price: $284.90    Sale Price: $259.00
    Quantity:
    Napoleon 10 Foot Flexible Aluminum Direct Vent Liner Kit - 4 Inch x 7 Inch
    Napoleon 10 Foot Flexible Aluminum Direct Vent Liner Kit - 4 Inch x 7 Inch
    2 Reviews
    You already love your Napoleon fireplace, so why look anywhere else for your venting system? Napoleon brings proven quality to the table, and there's nothing better to complete your Napoleon fireplace than a venting system from the same trusted name! This product is designed exclusively for Napoleon appliances that require 4" x 7" direct vent systems. The two- piece liner kit includes one 4" x 10" flexible aluminum liner, and one 7" x 10" flexible aluminum liner for your convenience.


    List Price: $262.90    Sale Price: $239.00
    Quantity:
    Napoleon Flexible Direct Vent Pipe Support Assembly - For Use with 4 Inch x 7 Inch Venting Systems
    Napoleon Flexible Direct Vent Pipe Support Assembly - For Use with 4 Inch x 7 Inch Venting Systems
    When it comes to getting everything properly installed with your fireplace, Napoleon has you covered regardless of the stage of the installation process. The Flexible Direct Vent Pipe Support Assembly has been designed to be used with 4 inch by 7 inch Venting Systems, making sure that your fireplace is capable of venting itself properly so that you can go about your business with confidence knowing that everything is in order without having any concerns whatsoever.


    List Price: $51.65    Sale Price: $46.95
    Quantity:
    Napoleon 4 Inch Inner Diameter Direct Vent Flex Vent Rear Venting Kit
    Napoleon 4 Inch Inner Diameter Direct Vent Flex Vent Rear Venting Kit
    Nearly every fireplace or stove needs a venting solution. Napoleon gives that to you. This product will help you remove those unwanted exhaust gases from your home to keep you safe. Napoleon has a sterling reputation as a manufacturer. This Napoleon 4 Inch Inner Diameter Direct Vent Flex Vent Rear Venting Kit is made by some of the best engineers in the hearth industry. And Napoleon has the awards to back up its products.


    List Price: $328.90    Sale Price: $299.00
    Quantity:
    Napoleon Direct Vent Firestop/Vent Sleeve Assembly - For Use with 4 Inch x 7 Inch Venting Systems
    Napoleon Direct Vent Firestop/Vent Sleeve Assembly - For Use with 4 Inch x 7 Inch Venting Systems
    Napoleon has created a sturdy and reliable way to vent your home effectively and safely. This direct vent fire stop and vent sleeve assembly is great for any 4 inch by 7 inch Napoleon direct vent system. Having an efficient venting system for your home and making sure that system is well-made and reliable is very important. For a great price and guarantee of high quality operation, you won't regret your purchase of this direct vent fire stop and vent sleeve assembly.


    List Price: $108.90    Sale Price: $99.00
    Quantity:
    Napoleon Direct Vent Attic Firestop/Vent Sleeve Assembly - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    Napoleon Direct Vent Attic Firestop/Vent Sleeve Assembly - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    Any time a chimney vent passes through a ceiling a firestop must be installed to protect the combustible materials against ignition from the heat of the vent. This attic firestop/vent sleeve assembly is designed to be installed with the 4" x 7" direct vents used by Napoleon direct vent stoves and fireplaces. This part replaces the parts W585-0072 and W170-0063. Using Napoleon venting parts that are designed to work with your Napoleon appliance helps to ensure that the vent installation is safe and effective.


    List Price: $108.90    Sale Price: $99.00
    Quantity:
    Napoleon 1/12 to 7/12 Pitch Direct Vent Roof Termination Kit - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    Napoleon 1/12 to 7/12 Pitch Direct Vent Roof Termination Kit - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    1 Review
    Once you have purchased a Napoleon stove, you have become aware of the high quality Napoleon provides. This direct vent kit is another one of their quality products you can purchase with confidence. It is made to fit the 4 inch by 7 opening. The kit will save you time as well as money since it fits perfectly with its corresponding Napoleon fireplace systems. This direct vent roof termination kit has a 1/12-7/12 pitch is just right for many home roofs.


    List Price: $471.90    Sale Price: $429.00
    Quantity:
    Napoleon 8/12 to 12/12 Pitch Direct Vent Roof Termination Kit - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    Napoleon 8/12 to 12/12 Pitch Direct Vent Roof Termination Kit - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    If your direct vent fireplace has a vertical vent, it will exit through your roof and will need a roof termination to provide protection. This termination kit will fit roof pitches from 8/12 to 12/12 and should be used with 4" x 7" direct vent pipe. Using Napoleon direct vent parts with your Napoleon fireplace ensures that the components integrate well to create an efficient and safe system that will help your unit operate at its best.


    List Price: $471.90    Sale Price: $429.00
    Quantity:
    Napoleon Flat Direct Vent Roof Termination Kit - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    Napoleon Flat Direct Vent Roof Termination Kit - For Direct Vent Stoves and 4 Inch x 7 Inch Venting Systems
    Napoleon realizes that when people think about fireplaces, topics such as proper termination tend to get thrown out the window accidentally. With their Flat Direct Vent Roof Termination Kit, you have a package that has been designed to take Direct Vent Stoves and 4 inch by 7 inch Venting Systems and make sure that it is securely installed on the roof, giving to both you and your household the assurance that your chimney will give the best and most reliable service possible.


    List Price: $471.90    Sale Price: $429.00
    Quantity:
    Napoleon 4 Inch Inner Diameter Adjustable Firestop Assembly
    Napoleon 4 Inch Inner Diameter Adjustable Firestop Assembly


    List Price: $73.70    Sale Price: $67.00
    Quantity:
    Napoleon Direct Vent Firestop - For Use with 4 Inch x 7 Inch Venting Systems
    Napoleon Direct Vent Firestop - For Use with 4 Inch x 7 Inch Venting Systems
    Napoleon's direct vent fire stop is crucial when you want to properly vent your fireplace. This particular fire stop is intended to be used with 4-inch x 7-inch venting systems. If a fireplace is not properly vented you run the risk of having a house fire. It is so important that it is required if you have a Napoleon Starfire direct vent gas fireplace when it is terminating through a combustible wall with fewer than 2 feet of venting. If you choose to go with Napoleon's fire stop to vent your Napoleon fireplace, you won't have to invest in many other pieces that you would need to adapt the vent pipes in order to make them connect properly. This fire stop is made specifically for Napoleon fireplaces and their vent pipes.


    List Price: $39.55    Sale Price: $35.95
    Product Details
    Free Venting Design & Quote:
    Manufacturer: Napoleon
    Part Number: B46NTR
    eFireplaceStore Item Number: NPL-B46NTR-NATURAL-GAS-SD
    UPC: 629169057245

    * Open Box Description: The unit received minor shipping damage in transit. There were several spots where the paint rubbed off and two very minor dents to the back corner, as shown in the pictures. The paint has been touched-up, and the minor denting to the back will not affect the safety and performance of the unit.

    Features

    • Color: Black
    • Size: 46 Inches
    • Dimensions: 42" W x 34 5/8" H x 18 5/16" D
    • Large viewing area
    • Back-up control system
    • Glass door for added safety
    • Realistic flames and log set
    • 30" direct vent gas fireplace
    • Comes with pan style burner
    • Pre-wired for wall switch installation
    • Exclusive Phazer log set and glowing ember bed

    Technical Specifications

    • Maximum BTU Output: 22,000
    • Min/Max Natural Inlet Pressure: 4.5"/7" WC
    • Framing Dimensions: 42 1/2" W x 35" H x 18 9/16" D
    • Venting Dimensions: 4" ID
    • Actual Viewing Area: 35" W x 34 5/8" H
    • Valve Type: Millivolt (Standing Pilot)
    • Approved Direct Vent Systems: Metal-Fab SureSeal, Simpson DuraVent Direct Vent Pro, BDM Pro-Form, Selkirk Direct Temp


    *Venting Requirements: This unit requires venting pipe with an inner diameter of 4 Inches. Please see the Venting Components section on this page if available for venting pipe that must be used with this unit.

    This Napoleon Ascent 46 Inch Direct Vent Gas Fireplace Millivolt - Millivolt Pilot will do its job and do it efficiently and effectively. After all, it's made by Napoleon. The hearth is the heart of the home. It's the gathering spot to welcome friends and family. It's no wonder that when you need it to work, it should. Napoleon knows this and makes sure all their products and accessories are built to the highest standards.
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