Monessen Exacta 36" Vent-Free Firebox BUF36

Ignition & Controls

Ignition depends on the burner. This is a firebox enclosure. Fuel type, ignition and compatible controls are determined by the separately selected, approved burner and log set.

Monessen Exacta BUF 36" Circulating Clean Face Firebox BUF36

Combined with a Monessen vent-free log set, the Exacta firebox supplies warmth and ambiance practically anywhere.

Includes:

• Circulating firebox with radiant clean face
• Features mesh screens with hide-away screen pockets, hood, and junction box
• Monessen exclusive two-piece hearth for easy access without removing log set

NOTE: Log sets are not included

UL listed to CSA/ANSI-Z21.91:20

Features

• Clean, louver-less design
• Screens tuck away into hidden pockets to reveal expansive views
• Available with Herringbone or Traditional stacked concrete interior panels, or no interior panels at all
• Deep box and wide opening supply generous room for the log set of your choice
• Angled firebox and uniquely engineered air channels efficiently move more heat into room
• Circulating firebox with radiant clean face
• Features mesh screens with hide-away screen pockets, hood, and junction box
• Monessen exclusive two-piece hearth for easy access without removing log set

Required installation components

This BUF36 is a firebox enclosure, not a complete gas heater. A separately purchased, listed unvented gas log heater is needed for operation. Maximum permitted heater input is 40,000 BTU/hr; its minimum enclosure dimensions must fit this firebox. Do not burn wood. Install the supplied hood without modifying it or substituting the heater hood.

Optional accessories

The AKD outside-air kit, ID4 or UD4 duct and GFK-160VF blower are optional. Follow the selected heater instructions as well as the firebox installation manual and applicable codes.

Specifications

Owner's Manual

Service Parts

Product Brochures

Architect Guides

CAD Drawings

Downloads

Monessen BUF36 installation manual — 4139-901 Rev. L 11/25