Description
The Superior WRT3920 20 Inch EPA Certified Traditional Wood Fireplace is a high-efficiency wood-burning heating solution designed to deliver exceptional warmth while maintaining the timeless appeal of a traditional fireplace. Featuring a circulating radiant design with ceramic glass, this fireplace maximizes heat transfer into the room while providing a clear view of the fire. Its white stacked textured refractory panels, integrated ash lip, and decorative cast iron log retainer create an attractive masonry-inspired appearance that complements a variety of home styles.
Engineered as an EPA variable-rate certified wood heater, the WRT3920 features a 2.0 cubic foot insulated firebox capable of accommodating logs up to 18 inches in length. Producing up to 55,000 BTUs and heating areas up to 1,500 square feet, this fireplace offers efficient supplemental heat for medium-sized living spaces. The adjustable air combustion control allows users to regulate heat output, while the integrated air boost feature helps ignite fires more quickly during startup. An efficient air wash system helps keep the ceramic glass cleaner for longer, maintaining an unobstructed view of the flames.
For enhanced comfort and performance, the Superior WRT3920 includes a 175 CFM blower that gently circulates warm air throughout the room, along with an insulated outside air kit that is required for installation. Built with a durable high-temperature paint finish and a cool-touch steel door handle, this fireplace combines convenience, safety, and durability. Approved for use with a 6-inch IHP Snap-Pak chimney system and backed by a 20-year limited warranty, the WRT3920 delivers efficient wood-burning performance, dependable heating, and lasting value.
Included
- Firebox
- Literature Kit (Installation and Guides)
- Wall Plate
- Damper Rod and Handle
- Strain Relief
- Juction Box
- Rheostat
- Intake Vent
- 4" Insulation Sleeve
- 4" Outside Air Intake Pipe
- (4) 10-16 x 3/4 Tek Screws
- Metal Safety Strip
- Blower
- Blower Speed Control
- Outside Air Kit
Optional Accessories
- Forced Air Heating Kit
- Perimeter Trim
- Cast Surround Kit
Features
- Circulating radiant design features ceramic glass for optimum heat transfer
- EPA variable-rate certified high-efficiency wood heater
- 2.0 cubic foot insulated firebox that accepts up to 18” log size for increased performance
- White stacked textured refractory panels with integrated ash lip and decorative cast iron log retainer
- Air combustion control for variable heat output with air boost for faster wood ignition during startup
- Includes insulated outside air kit (required for use)
- 55,000 BTUs and heats up to 1,500 square feet*
- Efficient air wash system that keeps glass clean
- Steel door with heat-resistant door handle that stays cool to the touch
- 175 CFM blower included for gentle air distribution into the room
- Durable high-temperature paint finish
- 20 Year Limited Warranty
*Square-foot heating capacities are approximations only. Actual performance may vary depending upon home design and insulation, ceiling heights, climate, condition and type of wood used, appliance location, burn rate, accessories chosen, chimney installation and how the appliance is operated.
Venting Notes
- Approved for use with 6" Chimney - IHP Brand Model Snap-Pak
Specifications
| Model | WRT3920 |
| Part Number | F4809 |
| Product Type | Wood-Burning Fireplace |
| Glass Viewing Area | 20" x 13-1/4" |
| Firebox Interior Width | 19-1/2" |
| Firebox Interior Height | 13-1/4" |
| Firebox Interior Depth* | 12" |
| Interior Cubic Feet | 2.0 |
| Framing Width | 36" |
| Framing Height | 37-3/4" |
| Framing Depth | 22" |
| Design Style | High-Efficiency |
| View Style | Front-View |
| Maximum Log Size | 18" |
| Chimney Size | 6" |
| EPA Rating | 1.7 grams/hr |
| BTUs | 55,000 |
| Heating Capacity (up to) | 1,500 sq. ft. |
| Thermal Efficiency | 60% |
| Blower | 175 CFM |
| Weight | 215 lbs. |
*Measured in front of door
Product Dimensions

Warranty
![]() ttps://cdn.shopify.com/s/files/1/0686/3156/0499/files/20-Years-Warranty.jpg?v=1681616895 |
Innovative Hearth Products ("IHP") 20-Year Limited Warranty warrants your Superior® Brand gas fireplace, Stove, or Insert ("Product") to be free from defects in materials and workmanship at the time of manufacture. |
Documents & Files
-
Product Brochure
-
Smart Sheet
-
Snap-Pak Smart Sheet
-
Installation and Operation Manual
-
Specifications Sheet
-
Forced Air Duct Installation Sheet
- Perimeter Trim Kit Installation Sheet
About The Manufacturer






