Isokern Bvetto 46" Gas Burning Fireplace - 80B46

The Isokern Bvetto 46" delivers a larger firebox for bold visual impact while maintaining the same modular strength and flexible design. Perfect for indoor or outdoor living areas, it supports multiple firebrick liner patterns and Isoflames burner systems.

Features

• Spacious 46" opening for a grander presentation
• Lightweight modular design simplifies transportation and setup
• Durable pumice construction for insulation and longevity
• Pairs with Isoflames burners for customizable gas fire experience
• Supports multiple firebrick patterns (Running Bond or Herringbone)

Necessary Items / SKUs

• Isoflames Bvetto Burner — NG: BV-ISF36SB-SN, LP: BV-ISF36SB-SP
  Main burner system that produces full-bodied, realistic flames.
• Isoflames External Electronic Ignition — NG: E-VKN, LP: E-VKP
  Provides reliable automatic ignition for hassle-free startup.
• Log Set – Weathered Oak (9 logs) — AWO36LOGS
  Optional aesthetic log set that complements the flame display.
• Log Set – Birch (9 logs) — BIRCH-36-EC-VLO
  Alternative optional log set for visual customization.
• Draft Kit – Box 1 (Channel) — BVT-1
  Essential component for proper chimney draft and airflow control.
• Draft Kit – Box 2 (Down Draft Diverter) — BVT-2
  Ensures correct down-draft diversion for safe and efficient venting.

Installation Materials (Required)

• Earthcore Adhesive, 5 Gallon Bucket — MP50 (for assembling fireplace & chimney sections)
• Isoset Firebrick Mortar, 50 lb — ISO-SET-BRICK (for installing firebrick lining)

Firebrick Liners / Requirements

Base Unit:

• Running Bond (R): 100 pcs Full/Split, 200 pcs Soapstone
• Herringbone (H): 120 pcs Full/Split, 240 pcs Soapstone

Optional / Small Sections (Per Extension):

• Running Bond (R): 20 pcs Full/Split, 40 pcs Soapstone
• Herringbone (H): 25 pcs Full/Split, 50 pcs Soapstone

Purpose & Compliance:

• Full: Main lining for firebox walls and floor
• Split: Corners or edges of the firebox
• Soapstone: Premium, high-heat aesthetic option
• Firebricks are required for proper firebox operation, providing heat resistance, structural protection, and optimal insulation.
• They ensure compliance with safety standards and local building codes, protecting both the fireplace and surrounding areas.
• Small sections are used for corners, edges, or modular extensions to complete the firebox lining.

Required Venting Components (10" B-Vent System):

• Straight Pipes: 10M12, 10M18, 10M24, 10M3, 10M4, 10M5
• Termination Cap: 10MC (standard) or 10MTC (top vent)
• Roof Flashing: 10MF
• Firestop Spacer: 10MFS
• Storm Collar: 10MSC

Optional / Only Required for Offset or Complex Vent Layouts:

• Elbows (10M45)
• Adjustable Pipes (10M12A, 10M18A)
• Support Brackets (10MGR, 10MHS, 10MSP)

Dimensions

• Opening Width: 46"
• Firebox Height: 30"
• Firebox Depth: 20"
• Weight: ~1,050 lbs