Overview
Make every gathering feel a little more extraordinary with the 36" Fortress See-Through Gas Fireplace. Designed to seamlessly connect your indoor and outdoor living spaces, the Fortress lets you enjoy the same beautiful flames from both sides of the wall. Its durable stainless steel construction is built to withstand the elements, while the sealed direct vent design delivers reliable warmth, exceptional efficiency, and year-round comfort. Whether you're entertaining on the patio or relaxing inside, the 36-inch Fortress creates a stunning focal point that brings both spaces together with one unforgettable fire.
Main Features:
- Enjoy Two Stunning Views of the Fire – The see-through design creates a dramatic focal point that connects your indoor and outdoor living spaces with one beautiful fire.
- Crystal-Clear Flame Presentation – Anti-reflective glass minimizes glare for a more natural, open-fire appearance from both sides.
- Powerful, Adjustable Heat – Delivers up to 56,000 BTUs (Natural Gas) or 59,000 BTUs (Propane) with turn-down capability for year-round comfort.
- Effortless Remote Operation – The included RC400 touchscreen remote makes it easy to adjust flame height and fireplace functions from the comfort of your seat.
- Beautiful Day or Night – Factory-installed halogen accent lighting highlights the firebox and adds inviting ambiance even when the flames are turned down.
- Expansive Viewing Area – A generous 36" x 30" viewing area provides impressive views of the flames from both indoors and outdoors.
- Built for Indoor & Outdoor Living – Includes a factory-installed outdoor kit and both indoor and outdoor screensfor safe, versatile installation.
- Certified for Quality & Safety – CSA design certified for dependable performance and peace of mind.
- Important Availability Note – This model is not available for sale in Rhode Island.
Specifications:
- Model: ODFORTG-36
- Fuel Type: Natural Gas or Propane (NG to LP Conversion Available)
- Max Heat Output: Max Heat Output 56,000 BTU/hr
- Viewing Area: 36" W x 30" H
- Unit Dimensions: 49 3/8" W x 44 3/8" H x 25 5/8" D
- Framing Dimensions: 49 1/2" W × 44 7/8" H × 23" D
- Venting: Top Vent, Direct Vent (5/8")
- Ignition & Controls: IntelliFire Touch Ignition System

Accessories:
- Interior Liners - Traditional Brick Refractory, Herringbone Brick Refractory
- Control Options - IntelliFire App, On/Off Touch Screen Remote
Warranty
20-Year Coverage
- Firebox and heat exchanger
10-Year Coverage
- Burners
- Logs and refractory components (coverage varies by component)
5-Year Coverage
- Ignition system components
- Electrical and control components
- Blowers and fans
- Gas valves and pilot assemblies
1-Year Coverage
- Labor allowance for warrantable repairs
- Accessories and decorative components
Important Warranty Notes
- Warranty applies only to the original purchaser and original installation location.
- Product must be installed and operated according to manufacturer instructions.
- Damage caused by improper installation, misuse, abuse, lack of maintenance, or unauthorized modifications is not covered.
- Normal wear items, surface finishes, and discoloration from heat are generally excluded.
Please see owners manual for full warranty breakdown
Product Resources
Make every gathering feel a little more extraordinary with the 36" Fortress See-Through Gas Fireplace. Designed to seamlessly connect your indoor and outdoor living spaces, the Fortress lets you enjoy the same beautiful flames from both sides of the wall. Its durable stainless steel construction is built to withstand the elements, while the sealed direct vent design delivers reliable warmth, exceptional efficiency, and year-round comfort. Whether you're entertaining on the patio or relaxing inside, the 36-inch Fortress creates a stunning focal point that brings both spaces together with one unforgettable fire.
Main Features:
- Enjoy Two Stunning Views of the Fire – The see-through design creates a dramatic focal point that connects your indoor and outdoor living spaces with one beautiful fire.
- Crystal-Clear Flame Presentation – Anti-reflective glass minimizes glare for a more natural, open-fire appearance from both sides.
- Powerful, Adjustable Heat – Delivers up to 56,000 BTUs (Natural Gas) or 59,000 BTUs (Propane) with turn-down capability for year-round comfort.
- Effortless Remote Operation – The included RC400 touchscreen remote makes it easy to adjust flame height and fireplace functions from the comfort of your seat.
- Beautiful Day or Night – Factory-installed halogen accent lighting highlights the firebox and adds inviting ambiance even when the flames are turned down.
- Expansive Viewing Area – A generous 36" x 30" viewing area provides impressive views of the flames from both indoors and outdoors.
- Built for Indoor & Outdoor Living – Includes a factory-installed outdoor kit and both indoor and outdoor screensfor safe, versatile installation.
- Certified for Quality & Safety – CSA design certified for dependable performance and peace of mind.
- Important Availability Note – This model is not available for sale in Rhode Island.
Specifications:
- Model: ODFORTG-36
- Fuel Type: Natural Gas or Propane (NG to LP Conversion Available)
- Max Heat Output: Max Heat Output 56,000 BTU/hr
- Viewing Area: 36" W x 30" H
- Unit Dimensions: 49 3/8" W x 44 3/8" H x 25 5/8" D
- Framing Dimensions: 49 1/2" W × 44 7/8" H × 23" D
- Venting: Top Vent, Direct Vent (5/8")
- Ignition & Controls: IntelliFire Touch Ignition System

Accessories:
- Interior Liners - Traditional Brick Refractory, Herringbone Brick Refractory
- Control Options - IntelliFire App, On/Off Touch Screen Remote
Warranty
20-Year Coverage
- Firebox and heat exchanger
10-Year Coverage
- Burners
- Logs and refractory components (coverage varies by component)
5-Year Coverage
- Ignition system components
- Electrical and control components
- Blowers and fans
- Gas valves and pilot assemblies
1-Year Coverage
- Labor allowance for warrantable repairs
- Accessories and decorative components
Important Warranty Notes
- Warranty applies only to the original purchaser and original installation location.
- Product must be installed and operated according to manufacturer instructions.
- Damage caused by improper installation, misuse, abuse, lack of maintenance, or unauthorized modifications is not covered.
- Normal wear items, surface finishes, and discoloration from heat are generally excluded.
Please see owners manual for full warranty breakdown
Education
Make every gathering feel a little more extraordinary with the 36" Fortress See-Through Gas Fireplace. Designed to seamlessly connect your indoor and outdoor living spaces, the Fortress lets you enjoy the same beautiful flames from both sides of the wall. Its durable stainless steel construction is built to withstand the elements, while the sealed direct vent design delivers reliable warmth, exceptional efficiency, and year-round comfort. Whether you're entertaining on the patio or relaxing inside, the 36-inch Fortress creates a stunning focal point that brings both spaces together with one unforgettable fire.
Main Features:
- Enjoy Two Stunning Views of the Fire – The see-through design creates a dramatic focal point that connects your indoor and outdoor living spaces with one beautiful fire.
- Crystal-Clear Flame Presentation – Anti-reflective glass minimizes glare for a more natural, open-fire appearance from both sides.
- Powerful, Adjustable Heat – Delivers up to 56,000 BTUs (Natural Gas) or 59,000 BTUs (Propane) with turn-down capability for year-round comfort.
- Effortless Remote Operation – The included RC400 touchscreen remote makes it easy to adjust flame height and fireplace functions from the comfort of your seat.
- Beautiful Day or Night – Factory-installed halogen accent lighting highlights the firebox and adds inviting ambiance even when the flames are turned down.
- Expansive Viewing Area – A generous 36" x 30" viewing area provides impressive views of the flames from both indoors and outdoors.
- Built for Indoor & Outdoor Living – Includes a factory-installed outdoor kit and both indoor and outdoor screensfor safe, versatile installation.
- Certified for Quality & Safety – CSA design certified for dependable performance and peace of mind.
- Important Availability Note – This model is not available for sale in Rhode Island.
Specifications:
- Model: ODFORTG-36
- Fuel Type: Natural Gas or Propane (NG to LP Conversion Available)
- Max Heat Output: Max Heat Output 56,000 BTU/hr
- Viewing Area: 36" W x 30" H
- Unit Dimensions: 49 3/8" W x 44 3/8" H x 25 5/8" D
- Framing Dimensions: 49 1/2" W × 44 7/8" H × 23" D
- Venting: Top Vent, Direct Vent (5/8")
- Ignition & Controls: IntelliFire Touch Ignition System

Accessories:
- Interior Liners - Traditional Brick Refractory, Herringbone Brick Refractory
- Control Options - IntelliFire App, On/Off Touch Screen Remote
Warranty
20-Year Coverage
- Firebox and heat exchanger
10-Year Coverage
- Burners
- Logs and refractory components (coverage varies by component)
5-Year Coverage
- Ignition system components
- Electrical and control components
- Blowers and fans
- Gas valves and pilot assemblies
1-Year Coverage
- Labor allowance for warrantable repairs
- Accessories and decorative components
Important Warranty Notes
- Warranty applies only to the original purchaser and original installation location.
- Product must be installed and operated according to manufacturer instructions.
- Damage caused by improper installation, misuse, abuse, lack of maintenance, or unauthorized modifications is not covered.
- Normal wear items, surface finishes, and discoloration from heat are generally excluded.
Please see owners manual for full warranty breakdown





