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Napoleon Ascent BHD4 See Thru Direct Vent Gas Fireplace | BHD4 |


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Napoleon's Ascent Multi-View Gas Fireplace is available as a See Thru and features various firebox/burner options including a log burner, a linear glass burner or a designer fire cradle featuring topaz glass to match any room in your home. The new Ascent Multi-View Gas Fireplace offers up to 30,000 BTU's, a massive 2,023 sq. in. viewing area for the See-Thru model, multiple firebox configurations and electronic ignition with battery back-up. Media kits and decorative panels are available to match any room in your home.

Click here for additional media enhancements and accessories for the BHD4.

Installation and Operating Instructions PDF

Ascent Gas Fireplace Brochure


  • Optional remote controls with digital screen
  • A massive 2,023 in² viewing area for the See-Thru model
  • Back-up control system ensures reliable use, even during power failures
  • Optional Newport Deluxe Decorative Brick Panels or MIRRO-FLAME Porcelain Reflective Radiant Panels available
  • Designer Fire Art Metail Coil and Nickel Stix available for the linear topaz glass burner version
  • Safety Screen Included
  • Optional media enhancement kits include Mineral Rocks
  • 45° Vent
  • 72% flame/heat adjustment
  • Natural Gas or propane

Napoleon Ascent BHD4 See Thru Direct Vent Gas Fireplace | BHD4 | Technical Details


Product Details

Fuel Type: Gas
Vent Type: Direct Vent
Vent Size: 5x8
Ignition Type: Electronic
Installation Type: Zero Clearance
Style: See-Through
Vent Inner Diameter: 5 Inches
Vent Outer Diameter: 8 Inches
Weight: 225 lbs.
Napoleon Ascent BHD4 See Thru Direct Vent Gas Fireplace | BHD4 | Dimensions


Actual Dimensions

Height Width Depth
381/4" 45" 251/8"

Framing Dimensions

Height Width Depth
461/2" 451/2" 241/8"

Technical Drawings

For more detail please see the Installation Manual

BHD4S Technical Drawing 1
BHD4S Technical Drawing 2

FAQ's - Questions & Answers

Ask a Question
  • Can this fireplace be installed in an exterior wall where one side of fireplace will be in living room and the other would be on the outdoor patio?

    No, the BHD4 is not rated for use in an exterior application.  Take a look at the Majestic Twilight II (click here) for a see through fireplace that can be used in an indoor/outdoor situation.  The best part about the Twilight II is that the venting is built into the unit, so you don't need to install a vent system.  Thanks for your question! 

Warning CA residents-Prop 65