Exhaust Fan Installation Knysna | Commercial Kitchen, Warehouse, Industrial

About Exhaust Fan Installation in Knysna

Commercial and industrial exhaust fans are larger, more powerful ventilation systems than residential extractor fans, designed for commercial kitchens, warehouses, factories, workshops, and large retail spaces. Proper exhaust ventilation is a legal requirement in commercial kitchens and certain industrial environments, and is essential for worker health, safety, and comfort in any enclosed commercial space.

Abacas Solution installs commercial exhaust fan systems in Knysna ranging from wall-mounted axial fans for workshops and warehouses to inline duct fans for commercial kitchen extraction systems. For commercial kitchens, we wire canopy exhaust hoods that remove cooking fumes, heat, and grease-laden air, and connect them to the building's extraction ductwork. For warehouses and factories, we install large-format wall fans or roof-mounted extraction units that provide whole-building air changes.

Our registered electricians handle the complete electrical installation, including dedicated circuits for large fans, three-phase wiring for industrial units, speed controllers for adjustable airflow, interlock wiring with gas supply shutoffs (for commercial kitchens), and integration with building management systems. We ensure all installations comply with SANS 10142-1, occupational health and safety regulations, and fire safety requirements. For commercial kitchens specifically, exhaust fans must meet specific air volume requirements based on the kitchen size and cooking equipment, and we calculate the correct fan capacity as part of our design process.

This is one of several specialist services we offer under commercial & specialty electrical in Knysna. As part of our Knysna electrical team, we bring over 25 years of hands-on experience to every job.

Exhaust Fan Installation in Knysna - Abacas Solution

When to Call for Exhaust Fan Installation

Call if you are setting up a commercial kitchen and need extraction wiring, if your warehouse or factory needs improved ventilation, if you need a gas interlock system installed, if your existing exhaust fan has stopped working, or if you need speed control added to an existing fan.

Our Exhaust Fan Installation Process

1

Ventilation Assessment

We assess the space, calculate the required air change rate, and determine the correct fan capacity, type, and position for effective ventilation.

2

System Design

We design the electrical supply including circuit capacity, speed control, interlock wiring, and any three-phase requirements.

3

Installation

We mount the exhaust fan, run all electrical wiring, install speed controllers, interlock switches, and connect to the power supply.

4

Commissioning and Compliance

We test airflow, verify interlock operation, check noise levels, and provide compliance documentation and operating instructions.

Property owners in Knysna often combine exhaust fan installation with three-phase power installation in Knysna and prepaid meter installation. We handle everything, so you only need one call.

Safety & Compliance

Commercial kitchen exhaust fans must be interlocked with the gas supply so that cooking equipment cannot operate without the exhaust fan running. This prevents dangerous buildup of gas fumes. Industrial exhaust fans may handle explosive or flammable atmospheres and require ATEX-rated motors and wiring. All commercial exhaust installations must comply with OHS Act requirements and SANS fire safety standards. Three-phase fan motors require proper phase rotation for correct fan direction.

Exhaust Fan Installation Cost in Knysna

Commercial exhaust fan costs depend on the fan size, type, and electrical requirements. A wall-mounted axial fan for a workshop (single-phase) costs R2,000-R5,000 installed. An inline duct fan for a commercial kitchen costs R4,000-R10,000. Large industrial roof extractors cost R8,000-R25,000 installed. Three-phase wiring and speed controllers add to the cost. Complete commercial kitchen extraction electrical work (fan, interlock, speed control) typically costs R5,000-R15,000 for the electrical component.

Frequently Asked Questions

Is exhaust ventilation required in a commercial kitchen in Knysna?

Yes. Commercial kitchens are legally required to have mechanical exhaust ventilation that removes cooking fumes, heat, and grease-laden air. The system must provide adequate air changes per hour based on the kitchen size and type of cooking equipment.

What is a gas interlock system?

A gas interlock cuts off the gas supply to cooking equipment if the exhaust fan is not running. This prevents dangerous gas buildup in the kitchen. It is a safety requirement for commercial kitchens using gas cooking equipment. We wire the interlock as part of the fan installation.

Can you install fans in an explosive atmosphere?

Yes. For environments with flammable dust, vapours, or gases, we install ATEX-rated exhaust fans with appropriate explosion-proof wiring. We assess the hazard classification and install accordingly.

How do I know what size exhaust fan I need?

Fan size depends on the room volume and the required number of air changes per hour, which varies by room type. A commercial kitchen needs 20-30 air changes per hour, while a warehouse may need 6-10. We calculate the correct fan capacity during our assessment.

Can you add a speed controller to an existing exhaust fan?

Yes. We install speed controllers for both single-phase and three-phase exhaust fans. This allows you to adjust airflow based on conditions, running the fan at lower speed when full extraction is not needed, which saves electricity and reduces noise.