what is in-slab duct?

Learn about In-Slab Duct and its use on High-Rise Buildings or Condominium Complexes.

In-Slab Duct

The Best choice for high-rise condos and buildings


Prairie Heating Products’ In-Slab duct is used to exhaust air from bathroom fans, range hoods, and clothes dryers but can also be used for fresh air intake and supply air. 

Our In-Slab Duct are rectangular spiral seamed duct that is made to be installed in the concrete slab floors of high-rise buildings. Built in runs and utilizing our additional slab duct products, once prepared, our slab duct products are easy to piece together for quick concrete pours and fast floor builds. 

In Slab Duct laid out on a floor.


Made in Canada
Manufactured in 10′ lengths.
3.5″ wide reinforcing channel entire length of duct.
Can be shipped loose or lifts of 1080′ for easy hoisting onsite.
Pressure Rating (-1 to +2 water gauge)

All testing performed by Intertek Testing Services NA Ltd.
Warnock Hersey and Hardy Associates Ltd.

What are the benefits of in-slab duct?

In slab duct perfectly hides in the high rise building

Eliminates HVAC Bulkheads for a Larger Room Feel in Each Condominium.

When an in-slab duct system is used for building high-rises, it eliminates the traditional bulkhead. 

Preparing in slab duct for installation

Our Slab Duct System Pieces Together Quickly for Faster Floor Builds.

Runs of slab duct can be pieced together and hoisted up for a quick installation for floor building efficiency.

The Slab Duct System has Concrete Poured on it Which Reduces Noise.

Noise reduction occurs due to the slab duct system being encased in concrete for each floor. 

In Slab duct for high rise buildings

Save One Floor for Every Ten Floors Built.

The floor savings provided by our slab duct HVAC system allows for an additional floor for every 10 floors built.

In-Slab Duct Installation – See How it works!

Why Choose Prairie Heating Products

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With hands-on experience with our own products, we’re always available to provide advice, ideas and information

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Have a big job? Let us handle the logistics for you! We can arrange, store, or stagger shipments to suit your needs

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With extra safe packaging, we’ve cut shipping damage by 25%. Get our products in fussfree, recyclable packaging!

Ready To Become A Dealer?

Book a meeting with Prairie Heating today!

Slab Soffit Discharge Blue Print Design
Slab Soffit Discharge Blue Print Design
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