Imperial (Middleby) Diamond Series Flue Risers - BG-18

Imperial (Middleby)  Diamond Series Flue Risers - BG-18

Imperial Diamond Series 18" stainless steel flue riser/backguard, heavy-duty  durable corrosion-resistant design.

What our Experts Think

• Compact 18” commercial cookline protection
  The BG-18 is designed for smaller range sections, delivering a clean stainless steel backguard that protects walls while supporting proper flue ventilation in tight kitchen layouts.
• Heavy-duty stainless steel construction
  Built from durable stainless steel, it’s engineered for constant commercial heat exposure, corrosion resistance, and long service life in busy kitchens.
• Minimalist no-shelf design for hygiene-first kitchens
  The open configuration avoids storage clutter, making it easier to clean quickly and maintain strict NSF-level sanitation standards.
• Efficient heat & exhaust management
  Functions as a flue riser that helps channel heat and combustion gases upward, protecting surrounding walls and improving airflow behind equipment.
• Perfect modular fit for 18” range segments
  Standardized dimensions (18” width, 17” height) ensure easy integration into modular Imperial Diamond Series cooklines without layout disruption.
• Lightweight but commercial-grade durable
  At roughly 23 lbs, it’s easy to install while still maintaining the rigidity needed for professional kitchen environments.

                   
Q&A

Q: What is the Imperial BG-18 flue riser used for?
A: The BG-18 is a commercial stainless steel backguard/flue riser designed to protect kitchen walls from heat, grease, and exhaust while improving ventilation behind 18” cooking equipment.

Q: What are the key features of the BG-18?
A: It includes a 18” width, 17” height, heavy-duty stainless steel build, and a no-shelf design, making it durable and easy to clean for commercial kitchens.

Q: Does the BG-18 include storage shelves?
A: No, the BG-18 is a shelf-free flue riser, focused on heat ventilation and wall protection rather than storage.

Q: What are the dimensions and weight of the BG-18?
A: It measures approximately 18” W × 17” H and weighs about 23 lbs, making it compact and easy to install in standard cooklines.

Q: What material is the BG-18 made of?
A: It is constructed from heavy-duty stainless steel, ensuring long-lasting durability, corrosion resistance, and easy maintenance.

Q: Is the BG-18 NSF certified?
A: Yes, it is NSF certified, meeting commercial food safety and sanitation standards for professional kitchens.

Q: Is the BG-18 compatible with commercial ranges?
A: Yes, it is designed to fit 18-inch Imperial range modules, creating a seamless and professional cookline setup.

Q: Why choose the Imperial Diamond Series BG-18?
A: It offers a compact, durable, and heat-resistant solution for protecting walls and improving ventilation efficiency in tight commercial kitchen spaces.

                   
Maintenance Tips

• Daily stainless cleaning: Wipe with warm water and mild detergent to remove grease and food splatter—prevents buildup and maintains hygiene standards.
• Maintain flue airflow: Regularly inspect and clean the 2-3/8" flue outlet to ensure proper exhaust ventilation and avoid blockage.
• Avoid abrasives: Do not use steel wool or harsh chemicals—protects brushed stainless finish and prevents corrosion or scratching.
• Dry after cleaning: Prevents water spots and keeps a clean, professional kitchen appearance.
• Grease control routine: Remove grease from backsplash areas frequently to reduce fire risk in high-heat cooking environments.
• Check mounting stability: Ensure secure attachment to range to prevent loosening from vibration and heat cycles.
• Keep rear clearance open: Maintain unobstructed space behind cooking line for proper airflow and heat dissipation.
• Routine inspection: Check for dents, loose fittings, or heat stress to maintain long-term durability and NSF compliance.