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Napoleon Ascent B42 Direct Vent Gas Fireplace | B42 |

Original price $2,499.00 - Original price $3,374.00
Original price
$2,499.00 - $3,374.00
Current price $2,499.00

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The Napoleon Ascent 42 Gas Fireplace offers a multitude of options with decorative fronts, trim kits, decorative brick panels and MIRRO-FLAME Porcelain Reflective Radiant Panels. The Ascent 42 can be designed to your personal taste and can match any home decor. An approved safety barrier comes standard on the Ascent 42, meeting current safety standards.

Ascent Gas Fireplace Brochure


  • See all available accessories here. You will find alternative media kits, hot air distribution, remotes and more.
  • Exclusive PHAZER log set and glowing ember bed are the most realistic in the industry
  • Pan style burner
  • Back-up control system ensures reliable use, even during power failures
  • Millivolt or Electronic ignition systems available
  • Flex connector complete with shut off (Electronic ignition system only)
  • Optional Sandstone or Herringbone Decorative Brick Panels
  • Optional MIRRO-FLAME Porcelain Reflective Radiant Panels
  • Optional decorative fronts or 3" trim kit
  • Optional remote control
  • Optional blower kit
  • Pre-wired for wall switch
  • Optional media enhancement kits include Beach Fire, Shore Fire and Mineral Rocks

Napoleon Ascent B42 Direct Vent Gas Fireplace | B42 | Technical Details


Product Details

Fuel Type: Gas
Vent Type: Direct Vent
Vent Size: 4x7
Ignition Type: Millivolt or Electronic
Installation Type: Zero Clearance
Style: Traditional
Vent Inner Diameter: 4 Inches
Vent Outer Diameter: 7 Inches
Weight: 118 lbs.
Model: Natural Gas (NG) Propane (LP)
Max. (BTU/HR): 22,000 BTU's 22,000 BTU's
Min. (BTU/HR): BTU's BTU's
Napoleon Ascent B42 Direct Vent Gas Fireplace | B42 | Dimensions


Actual Dimensions

Height Width Depth
345/8" 42" 185/16"

Framing Dimensions

Height Width Depth
35" 421/2" 189/16"

Technical Drawings

For more detail please see the Installation Manual

B42 Technical Drawing 1
B42 Technical Drawing 2


1. Do I need to purchase a panel or trim kit with the fireplace?

No, these are optional accessories to enhance the look of the B42. The fireplace can be purchased without adding any additional features, although most customers prefer to add a panel and trim kit to complete the look and feel of the installation.

2. How will the fireplace be delivered? Will the delivery driver bring it into my house?

All fireplaces are delivered via freight (tractor trailer truck) to the specified street address you provide us, we do provide free lift gate service with all freight deliveries. The delivery driver is only responsible for unloading the items from the truck, not to move them anywhere. For more information on the delivery process visit our FAQ page.

3. The picture shows logs, are those included?

Yes, the logs are included with the B42. You can find other optional accessories on the B42 Accessories Page.

4. How is the fireplace vented?

The B42 is typically vented using Napoleon 4x7 venting components, you can find them here. If you need help designing the venting system let us know with an email or a phone call and we can assemble a custom solution for your situation. Head over to our Learning Center for how-to videos about the flex vent system and more.

5. Why buy from North Country Fire? 

Do you want the best customer service available? Do you want a licensed, experienced, expert installer to guide you through different options available? Do you want a great price? Then you've already answered the question. We try our best to do all of these things, give us a try, you won't be disappointed!

Questions & Answers

Ask a Question
  • Do you have a Manual for operation of this fireplace? and can the flame height be reduced?

    The installation manual can be seen below and no, this fireplace does not allow for manual flame adjustment. Thanks for the questions

  • Does this unit have a little smaller size? My opening is about 33 W x 28 H x 24 D.

    There are smaller versions of the Ascent series, but they're all taller than 28".  Do you have an existing masonry fireplace or a wood framed opening?  Thanks for your question!

  • Can the screen be removed?

    Yes, the safety screen can be removed from the fireplace easily.  It's held in place by the hooks built into it, so you just lift up and out.  Thanks for your question!

Warning CA residents-Prop 65