Onyx Direct Vent Gas Fireplace by Majestic Products

Model Details

Clean Face Design
Spacious Viewing Area — Onyx fireplaces offer up to 904 square inches of viewable area, so you can enjoy the warmth and glow of your fireplace from any angle.
Design Options
Create a custom look — Onyx fireplaces let you stretch your imagination with a wide variety of accessories. Develop your style with alternate firebrick choices while creating a traditional fireplace look.
Signature Command™ System
Fire control at your fingertips — This exclusive system gives you a full-featured command center for your fireplace. The optional remote offers even more flexibility.
Natural Flame burner system
Authentic fire viewing — The aluminized pan burner produces realistic, randomly dancing flames. Its large ember bed and glowing ceramic fiber logs add to the overall fire viewing experience.
Installation Options
Flexible installation — The Onyx fireplace comes in either Natural Gas or Propane. Its patented design allows you to set it up in either a top- or rear-venting configuration.
Up to 34,000 BTUs
Warmth and comfort — This fireplace delivers a range of BTUs from 22,000 to 34,000, so you’ll stay nice and warm while efficiently heating the room to help lower heating costs.

Available Sizes:

Quick Look

Direct Vent
Heating Capacity
Up to 1,660 sq. ft.
Thermal Efficiency
Up to 80%
Cost to Operate

* Based on cost/therm. According to the Federal Register Energy Conservation Program for Consumer Products.

Guides & Literature

Finishing Options

  • Signature Command™ Remote Controls Signature Command™ Remote Controls RMSC, TSMSC, TSFSC, TSTSC, SCSWEK, SCSACMThese remote controls feature the exclusive Signature Command™ system, which offers full function plus an innovative Smart Mode® that delivers maximum fireplace efficiency. Visit Ambient Technologies for more information.
  • Tavern Brown Firebrick Tavern Brown Firebrick FBMLDV500TBCustomize the interior of your fireplace with optional firebrick styles. The warmth of Tavern Brown firebrick adds a cozy accent to your room.
  • Olde English Herringbone Firebrick Olde English Herringbone Firebrick FBMLDV500OECustomize the interior of your fireplace with optional firebrick styles. The classic look of Olde English Herringbone firebrick creates a stately look in any room.
  • Blower Kits Blower Kits BLOTBLDV, BLOTBLDVSCChoose either a 160 CFM, variable thermostat controlled fan or a 3-speed, 160 CFM version (Requires SCSACM & TSFSC remote modules).
  • Mesh Glass Cover Mesh Glass Cover MLDV500SDDecorative black mesh glass cover for Onyx fireplaces.
  • Field Fuel Conversion Kits Field Fuel Conversion Kits Natural Gas to Propane: ML500CKPS. Propane to Natural Gas: ML500CKNS.These conversion kits allow you to change the fuel input of your gas appliance at home.

Onyx Model Line-Up

Unique features by model number

Model Number MLDV500PSC MLDV500NSC
Heating Capacity Up to 1660 Up to 1550
Max BTU/H (Natural Gas) N/A 34,000
Max BTU/H (LP) 34,000 N/A
Cost to Operate $0.92 $0.36
Fuel Type Liquid Propane Natural Gas

Common features for this family

Size 42
Viewing Style Front
  • 41 (W)
  • 50-3/4 (H)
  • 22-1/4 (D)
Framing Dimensions
  • 42-1/2 (W)
  • 50-7/8 (H)
  • 22-1/4 (D)
Ignition System SCS
Termination Convertible
Certifications CSA Design
Fire Viewing Area 33″ x 27-5/16″
Spec Sheets
& Manuals