Fireplaces by Firerock

B-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…

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Product overview

About B-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.

ICC Report

Specifications

FIREROCK B-VENT MODEL DIMENSIONS

Specs based off Conventional units. All measurements listed are based on dry stack units before firebrick is installed. Dimensions are nominal and are given for design and framing reference only. Please consult installation manual for all details and requirements before making final design layout decisions.

MODEL	WIDTH			HEIGHT				DEPTH		BTU	WEIGHT
MODEL	Opening	Firebox Rear	Overall	Opening	Firebox	Smoke Chamber	Overall	Firebox	Overall	BTU	WEIGHT
30″ B Vent	32.5″	22″	38″	33.75″	37.5″	22.375″	59.875″	22.5″	28.5″	44,000	1,800 lbs
36″ B Vent	38.5″	28″	44″	33.75″	37.5″	31.5625″	69.0625″	22.5″	28.5″	68,000	2,150 lbs
42″ B Vent	44.5″	34″	50″	33.75″	37.5″	31.5625″	69.0625″	22.5″	28.5″	68,000	2,410 lbs
48″ B Vent	50.5″	40″	56″	33.75″	37.5″	40.75″	78.25″	22.5″	28.5″	78,000	2,900 lbs

CLEARANCE TO COMBUSTIBLES

Opening to Sidewall	28″
Opening to Combustible Trim	12″
Opening to Mantle with 8″ Depth	16″
Noncombustible Hearth Extension	20″ in front; 8″ each side
Firebox & Smoke Chamber to Combustibles or Framing	1″
Smoke Chamber (Front Wall & 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

AVAILABLE ACCESSORIES – Click Links Below

FireRock Adhesive Mortar, Installation Kit	Full & Split Firebrick
Simpson B-Vent Metal Chimney	Outside Air Kit

CAD RESOURCES

View Technical Resources for All Fireplace Models

Available sizes30″, 36″, 42″, 48″

DesignAllows for a true masonry, gas-only fireplace with specialized 10″ diameter, double wall B-Venting system for exhaust flue gases

CompliancesUL 127, ANSI Z21.50, wind load, seismic testing, ICC report issued

ApplicationsCan be installed directly on a wooden or other combustible floor without a riser kit

DetailCheck local building codes for restrictions, specifically in bedrooms

RequirementsUse only with vented decorative gas logs that comply with ANSI Z21.11.2

Clearance to Combustibles0″ to floor, 1″ to sides and back of firebox and smoke chamber

Product resources

Technical documents.

PDFProduct document

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B-Vent Indoor Fireplace

About B-Vent Indoor Fireplace.