The make up air unit takes outdoor air through a fresh air intake. This air enters the unit through dampers, louvers or intake sections depending on the installation design.

The outdoor air passes through make up air filters to remove dust and airborne particles before entering the occupied or working space.

Depending on the project requirement, the make up air unit may include a heating coil, cooling coil, gas burner, electric heater or heat recovery option. A heated make up air unit is useful in cold conditions, while a cooled make up air unit supports comfort in warm conditions.

The make up air fan or blower moves the filtered and treated outdoor air into the building through ducts or air diffusers.

The conditioned fresh air is distributed through make up air ducts to kitchens, production areas, exhaust zones or required spaces.

The make up air unit replaces the air removed by exhaust fans, kitchen hoods or industrial ventilation systems.

By supplying the correct amount of replacement air, the make up air system helps maintain building pressure balance and reduces negative pressure issues.

Commercial kitchens often require make-up air because exhaust hoods remove large amounts of air that need to be replaced for proper airflow and pressure control. A make up air unit for commercial kitchen supports kitchen hood performance, comfort and ventilation balance.

A restaurant make up air unit helps replace air removed by kitchen exhaust hoods and improves airflow in kitchen spaces.

Hotels use make up air systems for kitchens, laundry areas, service spaces and ventilation zones.

Factory make up air units help replace exhausted air from industrial ventilation systems and process exhaust equipment.

Warehouse make up air units support fresh air ventilation and pressure balance in large storage spaces.

Make up air units for manufacturing plants help support process ventilation, worker comfort and exhaust air replacement.

Hospitals use make up air systems for ventilation support, fresh air supply and air balance in selected spaces.

Laboratories often have high exhaust requirements, and make up air units help replace exhausted air safely and efficiently.

Make up air units for cleanroom ventilation support fresh air supply and pressure control requirements.

Paint booths need controlled air replacement to support exhaust and maintain airflow direction.

Welding shops require make up air to replace air removed by fume extraction and exhaust systems.

Bakeries use make up air systems to support exhaust from ovens, hoods and heat-producing equipment.

Laundry exhaust systems remove large amounts of air, making make up air important for proper ventilation balance.

Commercial kitchens need make up air because exhaust hoods remove large volumes of air. Without air replacement, the kitchen can face negative pressure, poor hood capture, door pressure issues, discomfort and poor ventilation.

A kitchen hood exhaust system must be supported with proper replacement air. The make up air unit supplies fresh outdoor air to match exhaust demand and maintain airflow balance.

Restaurant kitchens require balanced exhaust and supply air. A restaurant make up air unit helps maintain kitchen comfort and protects the overall HVAC system from pressure imbalance.

Make up air can be supplied through ceiling diffusers, wall grilles, kitchen hood supply sections, ducted supply systems or direct kitchen air distribution points depending on design.

A heated make up air unit helps in cold weather, while a make up air unit with cooling improves kitchen comfort in hot conditions. A tempered make up air unit can supply controlled air temperature for better comfort.

Proper make up air supports better ventilation, reduces drafts, improves hood performance and helps manage kitchen odor movement.

The exhaust fan CFM is the main factor in make up air sizing. The make up air unit should be selected based on the amount of air removed from the building.

The system must provide enough replacement air to avoid negative pressure and poor ventilation.

Some spaces need neutral, positive or controlled negative pressure. Make up air unit design should match the pressure requirement.

For commercial kitchens, hood size and exhaust rate affect make up air CFM calculation.

Spaces with more occupants or high ventilation demand may require additional fresh air.

The required outdoor air volume helps decide whether a 100% outdoor air unit, dedicated outdoor air unit or make up air system is suitable.

If outdoor air must be heated or cooled, heating and cooling load calculations are required.

Duct size, air velocity, static pressure and diffuser layout affect make up air unit performance.

A make up air unit mainly supplies outdoor air to replace exhausted air. An air handling unit filters, cools, heats and distributes air as part of a larger HVAC system.

A rooftop unit usually provides packaged cooling or heating. A rooftop make up air unit mainly supplies replacement outdoor air for ventilation balance.

A fresh air handling unit treats and supplies fresh air. A make up air unit specifically replaces exhausted air and helps control pressure balance.

An exhaust fan removes air from a space. A make up air unit supplies replacement air back into the space.

A DOAS unit supplies dedicated outdoor air for ventilation. A make up air unit supplies outdoor air mainly to replace exhausted air from kitchens, factories or high exhaust areas.

A ventilation fan moves air in or out of a space. A make up air unit is a more complete system with fan, filter, duct connection, controls and heating or cooling options.

A heat recovery unit transfers energy between exhaust and fresh air. A make up air unit focuses on replacing exhausted air and maintaining pressure balance.

We supply make up air units for commercial kitchens, restaurants, factories, warehouses, manufacturing plants, hospitals, laboratories and industrial exhaust areas.

Our installation support includes site inspection, unit placement, duct connection, electrical connection, gas or heating connection, control wiring, air balancing and testing.

We provide make up air unit maintenance checklist-based service to improve airflow, safety and long-term reliability.

Our repair support covers low airflow, fan not working, high noise, heating issues, cooling issues, control faults and negative pressure problems.

We support replacement of old make up air units with suitable new systems based on capacity and site requirement.

We provide filter cleaning, fan cleaning, coil cleaning, burner section checking, damper inspection and duct inspection.

Zenvent Engineering provides MUA service for commercial kitchen exhaust and kitchen hood make up air systems.

We provide industrial make up air unit maintenance and service for factories, warehouses and manufacturing plants.

We offer AMC service for make up air units to support regular inspection, preventive maintenance and reliable operation.