Table of Contents
What's a Chimney Extension?
A chimney extension is an additional range hood chimney accessory that attaches to your existing chimney or directly to your vent hood and covers your ductwork. Whether you have a wall mount chimney range hood, an island mount range hood, or a chimney hood in a stainless-steel finish, finding the right range hood chimney extension ensures a polished look for your kitchen design.
If you need more chimney than your kitchen hood comes with—or if your hood doesn't come with a chimney at all—that's when you would want to buy a chimney extension. This is especially common with high ceilings where the standard chimney simply isn't tall enough to reach.
Important Note: We do not accept returns on our chimney extensions. Please measure carefully and contact us if you need assistance determining the right size for your ventilation system.

Do I Need a Chimney Extension?
Many range hoods come with chimneys, typically wall-mounted range hoods or island hoods. For standard ceiling heights (8-9 feet), you usually won't need an additional extension. However, for high ceilings, a chimney extension may be necessary to complete your kitchen ventilation setup and create a seamless cooking environment.
Understanding your kitchen layout is essential when choosing the right range hood and any necessary extensions. The goal is to ensure your ventilation system looks integrated with your cooking space while providing optimal airflow and ventilation power.
Key Factors to Consider:
- Ceiling Height: Standard chimneys accommodate 8-9' ceilings
- Hood Mounting Distance: 28-36 inch from cooktop (indoor), 36-42 inch (outdoor)
- Hood Type: Wall hood and island mount options come with chimneys; inserts and under-cabinet hoods don't
- Range Hood Size: Larger hoods may require different extension dimensions
Call for Sizing Help: (877) 901-5530
Quick Sizing Guide
Use this guide to find the right chimney extension for your kitchen environment and ceiling height. Proper sizing ensures your chimney range hood looks professionally installed and your kitchen exhaust system functions efficiently.
Chimney Extension Sizes by Ceiling Height
- 7 foot Ceilings: 6-inch extension (select models)
- 8 foot Ceilings: 12-inch extension
- 9 foot Ceilings: 24-inch extension
- 10 foot Ceilings: 36-inch extension
- 12 foot Ceilings: Two 36-inch extensions
- 11 foot+ Ceilings: Custom fabrication required
For ceilings higher than 12 feet, you'll need custom extensions from a local metal fabrication shop. Many homeowners with high ceilings choose a black stainless steel or traditional stainless-steel finish to match their other kitchen appliances like range microwaves and cooktops.
How to Calculate Your Extension Size
Follow these steps to determine the exact chimney extension size for your cooking area. Accurate measurements ensure your wall mount chimney or island hood looks seamless in your kitchen design.
Step-by-Step Calculation
Step 1: Measure ceiling height from floor to ceiling
Step 2: Measure from the floor to top of your range/cooktop
Step 3: Add your planned mounting distance (28-36 inch from cooktop)
Step 4: Add your range hood height (if already purchased)
Step 5: Subtract total from ceiling height = Extension space needed
Example Calculation: 12-Foot Ceiling
- Ceiling height: 144 inches
- Floor to range top: 36 inches
- Range to hood distance: 28 inches
- Hood height: 16 inches
- Total used space: 80 inches
- Extension space needed: 64 inches
This calculation works for all ventilation types, whether you're installing a cabinet range hood, wall hood, or island range hood over a kitchen island.
Proline Range Hood Models & Extensions
Proline offers high-quality ventilation solutions for every kitchen layout and ceiling height. Our range hoods feature powerful fan speed options, bright LED lighting, and durable construction. Below you'll find extension options organized by ventilation type and hood style.

Wall Mounted Range Hoods
Our wall mounted range hoods deliver exceptional ventilation power and enhance your cooking experience with features like adjustable fan speed settings and energy-efficient LED lighting. These wall mount chimney range hood models work beautifully in any cooking space.
Models with 10 foot & 12 foot Ceiling Extensions:
PLFW 520, PLFW 544, PLFW Vector, PLFW 129J, PLFW 129E, PLJW 129, PLJW 130, PLFW 755, PLFW 750, ProSW, PLJW 104
- 10 foot Ceiling: One 36-inch extension
- 12 foot Ceiling: Two 36-inch extensions
Special Options:
PLFW 129J.30, PLFW 129E.30, PLJW 129.30: Also available with 12-inch extension for 7 foot ceilings
ProSW models: Available with 12-inch, 16-inch, 24-inch, and 36-inch extensions
Island Range Hoods
Island range hoods are designed for cooktops positioned on a kitchen island, providing 360-degree airflow coverage. An island mount range hood makes a stunning centerpiece in any cooking area while delivering the ventilation power you need.
Models with Extension Options:
PLJI 102, PLJI 103, ProSI, PLFI 755, ProVI, PLFI 520, PLFI 750, PLFI 544
Note: Island hoods require exactly two chimney pieces for proper installation and balanced kitchen air circulation.

Under Cabinet & Insert Hoods
For those who prefer a more integrated look, cabinet range hood options and inserts provide excellent kitchen ventilation without a visible chimney. These are ideal for kitchens where the ductwork is concealed within cabinetry.
7 feet-10 feet Ceiling Extensions: PLJW 120, PLJW 102, PLJW 109
8 feet-10 feet Ceiling Extensions: PLJW 121, PLFW 832
Need Help Choosing?
Our experts can help you determine the perfect chimney extension for your kitchen setup. We'll walk you through the measurements and ensure you get exactly what you need for your kitchen environment. Whether you're looking at filter type options, ventilation type recommendations, or just need guidance on range hood size, we're here to help.
Our team understands that finding the right range hood involves more than just picking a style—it's about creating the best cooking experience for your home. We can help you choose between a chimney hood, island hood, or wall hood based on your specific cooking space and needs.
Call Now: (877) 901-5530
Important Reminders:
- Wall hoods come with two 15-inch telescoping chimneys (extend to 31 inches)
- Island hoods come with two 19-inch telescoping chimneys
- Extensions ship separately from your range hood
- Custom cuts available for shorter ceilings
- No returns accepted on chimney extensions
- Free shipping available on select orders
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