Description

High-Performance Circular Inline Duct Fans for Commercial, Industrial & Agricultural Ventilation

The Circular Inline Duct Ventilation Fan from The Cold Room Kahuna is a premium ventilation solution designed to deliver powerful airflow, energy efficiency, and reliable performance for residential, commercial, industrial, agricultural, and HVAC applications. Installed directly inside circular duct systems, these fans provide efficient fresh air supply and exhaust ventilation while maintaining low noise levels and excellent airflow through long duct runs.

Manufactured using durable galvanized steel and fitted with high-efficiency motors, our circular inline duct fans are engineered for continuous-duty operation in demanding environments. They effectively remove hot air, humidity, smoke, fumes, dust, odours, and airborne contaminants while introducing fresh air to improve indoor air quality and create healthier, more productive spaces. Inline duct fans are widely used where compact installation, efficient airflow, and quiet operation are required.

Our fans are available in different duct diameters to suit a wide range of ventilation requirements, from small commercial installations to large industrial HVAC systems.

Key Features

• Available in different duct diameters
• High airflow performance
• High static pressure for ducted ventilation systems
• Energy-efficient copper motor
• Quiet and low-vibration operation
• Heavy-duty galvanized steel housing
• Corrosion-resistant construction
• Compact inline design for easy installation
• Suitable for supply and exhaust ventilation
• Continuous-duty operation
• Long service life
• Low maintenance requirements
• Compatible with flexible and rigid ducting systems

Product Benefits

Installing a Circular Inline Duct Ventilation Fan provides numerous benefits for residential, commercial, and industrial buildings.

• Improves indoor air quality
• Removes stale air and unpleasant odours
• Extracts smoke, fumes, and airborne contaminants
• Reduces humidity and condensation
• Controls indoor temperatures
• Prevents mould and mildew growth
• Improves employee comfort and productivity
• Supports energy-efficient HVAC operation
• Protects equipment from overheating
• Delivers reliable year-round ventilation

Applications

Our Circular Inline Duct Ventilation Fans are suitable for a wide variety of industries and ventilation systems.

Commercial Buildings

• Office buildings
• Hotels
• Restaurants
• Shopping malls
• Retail outlets
• Schools
• Universities
• Hospitals
• Supermarkets

Industrial Ventilation

• Manufacturing plants
• Engineering workshops
• Warehouses
• Assembly plants
• Production facilities
• Packaging factories
• Processing plants
• Textile factories

Cold Rooms & Refrigeration

These fans are widely used in refrigeration and cold storage facilities to improve air circulation and ventilation.

Applications include:

• Cold rooms
• Walk-in chillers
• Walk-in freezers
• Food processing facilities
• Dairy processing plants
• Meat processing plants
• Ripening chambers
• Fruit and vegetable cold storage
• Beverage storage facilities

Proper ventilation helps maintain uniform temperatures, reduce condensation, and improve refrigeration efficiency.

Greenhouse Ventilation

Greenhouses require continuous air movement to maintain the ideal growing environment.

Our inline duct fans help to:

• Remove excess heat
• Improve air circulation
• Reduce humidity
• Prevent fungal diseases
• Supply fresh air
• Improve plant growth
• Create uniform temperatures throughout the greenhouse

Suitable for:

• Vegetable greenhouses
• Flower farms
• Hydroponic farms
• Seedling nurseries
• Commercial horticulture

Mushroom Farm Ventilation

Proper ventilation is essential for successful mushroom cultivation. During growth, mushrooms release carbon dioxide (CO₂), and excessive CO₂ levels can reduce yields, produce long stems with small caps, and increase the risk of contamination.

Our Circular Inline Duct Ventilation Fans provide controlled fresh air exchange (FAE), helping maintain the ideal growing conditions by continuously removing stale air while supplying fresh oxygen-rich air.

Benefits for Mushroom Farms

• Maintains proper fresh air exchange (FAE)
• Removes excess carbon dioxide (CO₂)
• Improves mushroom cap size and quality
• Promotes uniform pinning and fruiting
• Controls humidity and condensation
• Reduces mould and bacterial contamination
• Maintains stable environmental conditions
• Supports year-round mushroom production
• Improves crop yield and profitability

Suitable for:

• Oyster mushroom farms
• Button mushroom farms
• Shiitake mushroom cultivation
• Lion’s Mane mushroom production
• Mushroom growing rooms
• Fruiting chambers
• Spawn production rooms
• Commercial mushroom farms

Poultry & Livestock Ventilation

Maintaining fresh air inside poultry and livestock houses is critical for animal health and productivity.

Our inline duct fans help:

• Remove ammonia gases
• Improve oxygen levels
• Reduce heat stress
• Lower humidity
• Minimise disease transmission
• Improve feed conversion
• Increase animal comfort

Suitable for:

• Poultry houses
• Dairy farms
• Pig houses
• Goat farms
• Livestock shelters
• Hatcheries

Commercial Kitchen Ventilation

Circular inline duct fans are ideal for commercial kitchen extraction systems.

They efficiently remove:

• Heat
• Smoke
• Grease-laden air
• Steam
• Cooking odours

Suitable for:

• Hotels
• Restaurants
• Cafeterias
• Bakeries
• Food courts
• Institutional kitchens

HVAC Applications

Our inline duct ventilation fans integrate seamlessly with HVAC systems for:

• Fresh air supply
• Return air systems
• Exhaust ventilation
• Air handling units (AHUs)
• Mechanical ventilation
• Heat recovery systems
• Clean room ventilation
• Server room cooling
• Laboratory ventilation

Available Sizes

Our Circular Inline Duct Ventilation Fans are available in various duct diameters to meet different airflow requirements for residential, commercial, and industrial applications.

Our technical team can help you select the correct fan based on:

• Required airflow (m³/h)
• Static pressure
• Duct size
• Room volume
• Ventilation application
• HVAC system design

Why Choose The Cold Room Kahuna?

The Cold Room Kahuna is one of Kenya’s trusted suppliers of refrigeration, HVAC, and industrial ventilation equipment. We provide complete ventilation solutions tailored to each project, from product selection to installation and maintenance.

Our services include:

• Professional ventilation system design
• HVAC consultation
• Mechanical ventilation installation
• Ductwork fabrication and installation
• Industrial ventilation systems
• Cold room ventilation
• Greenhouse ventilation
• Mushroom farm ventilation
• Poultry house ventilation
• Preventive maintenance
• Repairs and technical support

We proudly serve customers across Nairobi, Mombasa, Kisumu, Nakuru, Eldoret, Thika, Machakos, Nyeri, Meru, Embu, Kitale, and throughout Kenya, Uganda, Tanzania, Rwanda, South Sudan, Burundi, and East Africa.

Frequently Asked Questions

What is a Circular Inline Duct Ventilation Fan?

A Circular Inline Duct Ventilation Fan is a fan installed inside round ductwork to move fresh air into a building or extract stale, humid, or contaminated air. It is commonly used in HVAC systems, commercial buildings, factories, cold rooms, greenhouses, and agricultural facilities.

Where can this fan be used?

These fans are suitable for warehouses, factories, cold rooms, commercial kitchens, offices, shopping malls, poultry houses, mushroom farms, greenhouses, laboratories, hospitals, schools, hotels, and industrial ventilation systems.

Can it be used for mushroom farming?

Yes. Circular inline duct fans are highly effective in mushroom cultivation because they maintain fresh air exchange, reduce carbon dioxide (CO₂) levels, control humidity, and improve mushroom quality and yield.

Do you provide installation services?

Yes. The Cold Room Kahuna offers professional supply, installation, testing, commissioning, preventive maintenance, and repair services throughout Kenya and East Africa.