Napoleon Ascent 42 – Napoleon B42 Gas Fireplace

The Napoleon Ascent 42 – B42 is the largest single view fireplace in the Ascent™ Series. This direct vent gas fireplace offers a multitude of options including decorative fronts, trim kit, decorative brick panels and MIRRO-FLAME™ Reflective Radiant Panels, the Ascent™ 42 can be designed to your personal taste and match any home décor. An approved safety barrier comes standard on the Napoleon B42 Gas Fireplace.


  • Description
  • Required Options
  • Available Accessories


Product Information

Napoleon’s new Ascent line features several state of the art clean face gas fireplaces including the  Ascent 42 – B42.  This is a great fireplace not only for new homes, but also for home renovations and for businesses.   This direct vent gas fireplace comes with Napoleon’s classic PHAZER log set and Napoleon’s advanced burner technology; the combination of the two have lead to the most realistic flames in the industry.  The  Napoleon Ascent™ 42 – B42 has the largest viewing area in the Ascent™ Series. This direct vent gas fireplace offers a multitude of options –  such as decorative fronts, trim kits, decorative brick panels and MIRRO-FLAME™ Reflective Radiant Panels – so your new fireplace can be custom designed to match any decor.  This beautiful gas fireplace also comes with an approved safety barrier.

  • Exclusive PHAZER® log set and glowing ember bed are the most realistic in the industry
  • Napoleon’s advanced burner technology
  • Comes standard with 2015 ANSI approved safety screen
  • Millivolt or Electronic ignition systems available
  • Flex connector complete with shut off (Electronic ignition system only)
  • Pre-wired for wall switch
  • Natural gas (propane conversion kit available)
  • Optional remote control
  • Optional blower
  • Optional decorative front or trim kit
  • Optional Sandstone or Herringbone Decorative Brick Panels
  • Optional Porcelain Reflective Radiant Panels
  • Mobile home certified

The Ascent B42 replaces the BGD42, BGD42 Clean Face, BGD42 Grandville, BGD42CF, BGD42CF Grandville, Grandville 42, Grandville 42 CF, Grandville BGD42, Grandville BGD42CF, Napoleon BGD42 Napoleon BGD42 Clean Face, Napoleon BGD42 Grandville, Napoleon BGD42CF, Napoleon BGD42CF Grandville, Napoleon Grandville 42, and Napoleon Grandville 42 CF.

Product Manual/Specifications for Napoleon B42 Gas Fireplace

Click here for Napoleon Ascent 42 manual

Natural Gas
Venting Glass Type Glass Size
Glass Size
Glass Area
sq in
Blower Mobile
25,000 25,000 Top/Rear Tempered 23 11/16″ 37 11/16″ 893 Optional Yes

1) Required Venting  – Questions about venting?  We can help!

For over two decades, Wolf Steel has had the perfect answer to simple and complex venting situations. Wolf Steel’s Freedom Flex Venting is a cost effective solution that is versatile and light weight, and will simplify your installation.  Compared to traditional venting, using Flex Venting  you can save up to 75% in time, labor, and parts costs. Flex Venting is manufactured with two layers of rolled aluminum,  and these vent pipes pass each and every certification test, and exceeds industry standards.