Monessen Exacta BUF Vent-Free Firebox
Questions about this product?
Call a product specialist: 833-777-2962
Product Documents
Select a file to view or download.
Shop Pay Installments
Choose Shop Pay at checkout to see available installment plans. Eligible purchases may qualify for 4 interest-free payments or a monthly payment plan.
Options depend on the order total and customer eligibility. Rates and terms are shown at checkout before you place the order.
Request a Project Quote
Tell us what you need. A member of our team will contact you with availability, a product and pricing breakdown, and delivery options.
Monessen · Exacta BUF Vent-Free Firebox
A clean-face firebox built around your log set
Exacta is the simple, flexible base for a Monessen vent-free log set. Choose 32, 36 or 42 inches, then go open, stacked traditional or herringbone concrete inside.
01 · Sizes
Three widths
32, 36 and 42 inch boxes cover most wall layouts, with the same front and trim accessories across the line.
02 · Interior
Pick your interior
Leave it plain, or add stacked traditional or herringbone concrete panels for a masonry look.
03 · Logs
Pairs with Monessen logs
Logs are sold separately, so you can match Beachcomber, Berkley Oak, Charisma and other sets to your style.
Fuel & Compatibility
This firebox does not burn fuel by itself. Use only an approved gas-fired decorative room heater and its matched log set. The separately selected burner determines fuel, ignition and heat input. Do not burn wood in this firebox.
Product Details
- Radiant clean-face design with a circulating firebox.
- Hideaway screen pockets keep the opening visually clear.
- Two-piece hearth allows access without lifting the complete log arrangement.
- Select the exact interior configuration shown in the model table.
What comes with your order
Selected Exacta firebox and its SKU-specific interior configuration. Gas burner and logs are not included. Optional trim, lighting and other accessories are sold separately.
Manuals, Specifications & Warranty
Download the documents below. Match the exact SKU, fuel and product edition before planning or installation.
- Installation Manual — Rev L, 11/25PDF ↗
- Owner’s Manual — Rev F, 11/24PDF ↗
- Dimensions & Framing Guide — 12/25PDF ↗
- Limited Warranty — Rev N, 12/23PDF ↗
- Dimensions & Framing Guide — 12/25PDF ↗
- Dimensions & Framing Guide — 07/26PDF ↗
Manufacturer warranty
The current Hearth & Home Technologies limited warranty provides 20 years of parts coverage and 3 years of labor for the gas firebox/heat exchanger. Other components have different coverage periods. Purchase, installation, maintenance and other conditions and exclusions apply.
Questions Before You Order
Are the burner and logs included?
No. This is a firebox listing. Choose a manufacturer-approved burner and compatible log set separately.
Can I use the nominal size as the framing dimension?
No. Use the model-specific framing dimensions and required clearances in the installation manual. The nominal size refers to the firebox family, not the complete installation opening.
Specifications & Installation Dimensions
32 in · Monessen Exacta BUF 32 Vent-Free Firebox
| Brand | Monessen |
|---|---|
| Product type | Vent-Free Firebox |
| Material | Steel |
| Appliance front width | 38" |
| Appliance rear width | 27-1/4" |
| Appliance height | 34" |
| Appliance depth | 20" |
| Viewing area | 32 × 27 inches |
| Framing front width | 38-1/2" |
| Framing rear width | 38-1/2" |
| Framing height | 34-1/4" |
| Framing depth | 19-3/4" |
Model & Configuration
| SKU | Configuration |
|---|---|
| BUF32A | 32" Exacta Circulating Clean Face Firebox, no interior panels |
| BUF32-T | 32" Exacta Circulating Clean Face Firebox, Stacked Traditional Concrete interior panels |
| BUF32-H | 32" Exacta Circulating Clean Face Firebox, Herringbone Concrete interior panels |
Confirm all framing, clearance and finishing dimensions with your qualified installer before ordering or construction. Product dimensions and shipping-package dimensions are not interchangeable.
36 in · Monessen Exacta BUF 36 Vent-Free Firebox
| Brand | Monessen |
|---|---|
| Product type | Vent-Free Firebox |
| Material | Steel |
| Appliance front width | 42" |
| Appliance height | 34" |
| Appliance depth | 20" |
| Viewing area | 36 × 27 inches |
| Framing front width | 42-1/2" |
| Framing rear width | 42-1/2" |
| Framing height | 34-1/4" |
| Framing depth | 19-3/4" |
Model & Configuration
| SKU | Configuration |
|---|---|
| BUF36A | 36" Exacta Circulating Clean Face Firebox, no interior panels |
| BUF36-T | 36" Exacta Circulating Clean Face Firebox, Stacked Traditional Concrete interior panels |
| BUF36-H | 36" Exacta Circulating Clean Face Firebox, Herringbone Concrete interior panels |
Confirm all framing, clearance and finishing dimensions with your qualified installer before ordering or construction. Product dimensions and shipping-package dimensions are not interchangeable.
42 in · Monessen Exacta BUF 42 Vent-Free Firebox
| Brand | Monessen |
|---|---|
| Product type | Vent-Free Firebox |
| Material | Steel |
| Appliance front width | 48" |
| Appliance height | 34" |
| Appliance depth | 20" |
| Viewing area | 42 × 27 inches |
| Framing front width | 48-1/2" |
| Framing rear width | 48-1/2" |
| Framing height | 34-1/4" |
| Framing depth | 19-3/4" |
Model & Configuration
| SKU | Configuration |
|---|---|
| BUF42A | 42" Exacta Circulating Clean Face Firebox, no interior liners |
| BUF42-T | 42" Exacta Circulating Clean Face Firebox, Stacked Traditional Concrete interior panels |
| BUF42-H | 42" Exacta Circulating Clean Face Firebox, Herringbone Concrete interior panels |
Confirm all framing, clearance and finishing dimensions with your qualified installer before ordering or construction. Product dimensions and shipping-package dimensions are not interchangeable.
Choose your configuration
Check your fuel, fit and required components, then select your model.
