B-Vent Fireplace

Our B-Vent fireplace offers a natural vent with automated safety features that quickly eliminate fumes from your home

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  • Specifications
  • About
  • Specifications
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B-Vent Masonry Fireplace by FireRockB-Vent Indoor Fireplace

Our B-Vent fireplace is an efficient model that is primarily meant to be used in bedrooms (due to the safety concerns with carbon monoxide emissons). The B-Vent model offers an automated safety shut off valve - ensuring your fire does not burn too long or too hot. B-Vent fireplaces must be installed through the home and terminate above the roofline. They use room air for combustion, and all combustion fumes are vented outside your home. This model is a gas-only fireplace option which requires a special double-walled 10" metal chimney pipe (purchased separately). The customized chimney pipe allows for higher reflection similar to a dryer, and stays hotter to draw gases out more quickly. The B-Vent fireplace also requires an accessory kit which FireRock stocks, and is our only model that we stock gas logs for. This masonry fireplace model can be installed directly onto a combustible subfloor.

  • Available sizes: 30", 36", 42", 48"
  • Design: Allows for a true masonry, gas-only fireplace with specialized 10" diameter, double wall B-Venting system for exhaust flue gases
  • Compliances: UL 127, ANSI Z21.50, wind load, seismic testing, ICC report issued
  • Applications: Can be installed directly on a wooden or other combustible floor without a riser kit
  • Check local building codes for restrictions, specifically in bedrooms
  • Requirements: Use only with vented decorative gas logs that comply with ANSI Z21.11.2
  • Clearance to Combustibles: 0" to floor, 1" to sides and back of firebox and smoke chamber 

Specifications

FIREROCK B-VENT MODEL DIMENSIONS

Specs based off Conventional units. Dimensions do not include firebrick lining.

Model Size

Overall Width

Overall Depth

Overall Height

Firebox Opening Width

Firebox Opening Height

Gas Log BTUs

Approximate Weight (lbs.)

Minimum Installed Height

Maximum Installed Height

30" BV

38"

28.5"

61"

32.5"

34"

48,000

1,800

N/A

N/A

36" BV

44"

28.5"

70.5"

38.5"

34"

68,000

2,150

N/A

N/A

42" BV

50"

28.5"

70.5"

44.5"

34"

68,000

2,410

N/A

N/A

48" BV

56"

28.5"

80"

50.5"

34"

78,000

2,900

N/A

N/A

Download Full Dimension Guide

MINIMUM CLEARANCE TO COMBUSTIBLES (ALL SIZES)

Opening to Sidewall: 6"

Opening to Combustible Trim: 12"

Opening to Mantle with 8" Depth: 12"

Noncombustible Hearth Extension: 20" in front, 8" each side of opening

Firebox and Smoke Chamber to Combustibles or Framing: 1"

Smoke Chamber to Front Wall and Smoke Chamber Top to Wood Framing: 1"

Approvals & Certifications

Complies with UL 127, ANSI Z21.50, wind load, seismic testing, ICC report issued

For use with unvented decorative gas logs listed and labeled as complying with ANSI Z21.11.2

B-Vent model is the only fireplace that FireRock stocks gas logs for

Maximum heat input of gas logs must be no greater than 78,000 BTUs

B-Vent Kit (Sold Separately)

Draft Diverter, Chimney Flap Safety Device

Safety Shut-Off Switch Device, Draft Hood Connector from Simspon Dura-vent

High-Temp Wiring Harness, Masonry 10" Chimney Base

Properly Sized Gas Log Appliance

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