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Heatmaster 42" Vent-Free Big Mouth Firebox With Herringbone Panels

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$2,099.99

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Heatmaster is committed to providing the best quality gas hearth products at competitive prices. We utilize high-quality materials, skilled craftsmanship, and strict quality control to produce our products. And our focus is on continuously improving our products and our service to exceed expectations.

42" Vent-Free Big Mouth Firebox with Herringbone Panels

Heatmaster 36" Vent-Free Big Mouth Firebox with Herringbone Panels available in 36" and 42" sizes.

What's Included

  • Firebox
  • Heat deflection hood

Not Included (Sold Separately)

  • Log set
  • Blower

Features

  • Black mesh screen for the traditional fireplace look.
  • Includes a heat deflection hood to protect mantels.
  • Traditional herringbone fire brick pattern.
  • Easy gas line access with knockouts on both sides.
  • 4-inch optional hood available.
  • Log set sold separately.

 Specifications

Overall Dimension W 44" x H 40 1/4" x D 22 1/8"
Inner Dimension FW 34 1/2" x RW 25" x 25 1/2" x D 18 1/4”
Framing Dimension W 44 1/4" x H 40 3/8" x D 24"

Dimensions

Combustible Side Wall Placement for HVF-BM-42 
Combustible Side Wall Installation for HVF-BM-42
Guideline Dimension for Corner Application HVF-BM-42

Warranty

  • All refractory cement logs manufactured by Heatmaster LLC. have a lifetime warranty against breakage due to heat to the original owner in the original installation.
  • All other logs supplied from Heatmaster LLC. have a 2 year warranty against breakage due to heat to the original owner in the original installation.
  • All metal parts, including burners and grate assemblies, are warranted for 5 years.
  • All other mechanical parts are warranted for 1 year.

Documents & Files

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Frequently Asked Questions About Heatmaster 42" Vent-Free Big Mouth Firebox With Herringbone Panels

Most Frequently Asked Questions

The herringbone panel liner enhances the firebox’s aesthetic appeal with a classic brick pattern, improves heat reflection into the room, and adds a durable, easy-to-clean surface.

The Heatmaster 42" Vent-Free Big Mouth Firebox is approximately 42 inches wide and requires proper clearances to combustible materials, gas line access knockouts, and installation following manufacturer guidelines and local codes.

Other Questions

When installing a vent-free firebox, maintain the manufacturer-specified clearances to combustibles—typically several inches on all sides—and ensure the room has adequate ventilation per local codes and the installation manual to prevent buildup of combustion gases.

Product Overview

  • Zone / ROOM:

    Zone / ROOM:

  • Air Handler BTU:

    Air Handler BTU:

  • Coverage Area:

    Coverage Area:

  • Condenser BTU:

    Condenser BTU:

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat):

  • Warranty

    Warranty

Heatmaster 42" Vent-Free Big Mouth Firebox With Herringbone Panels Reviews