Liberty Electric Products

Air Curtains

Air curtains effectively prevent heating or air conditioning from escaping through open doors. They provide sizeable energy savings, increased personal comfort, and insect control when applied in commercial, industrial, or food service settings.

We catalog over 400 different configurations of air curtains and have models designed for both customer and service entryways. These are perfect for grocery stores, offices, retail locations, convenience stores, and warehouses, just to name a few.

Each individual application is different and can have a variety of solutions depending upon the application and the budget associated with the project. Click here to fill out the application form and then you can talk to one of our engineers and even arrange a site visit if necessary.

If you are still not convinced of the ROI on your project, click here and you can enter all of your parameters into an Air Curtain Energy Savings Calculator to see how much you can save.


Architectural Air Curtains

Chosen by designers who are concerned with both aesthetics and protecting the intent of the space when the door is open, these low-profile air curtains can be surface-mounted above the door or recessed into the ceiling. Used at building entrances to enhance or replace a vestibule to save energy and maintain temperature.

These products come in many different sizes and finishes along with having AMCA certified ambient, electric, steam, or hot water heated models that will meet IECC building code which allows AMCA certified air curtains as an alternative to vestibules.

This product family can be used with mounting heights to 16′ (environmental separation) and 14′ (insect control) and comes factory installed with a digital programmable controller that has many preset programs for the user to choose from.

Architectural Air Curtain in Grocery Store

It even comes with an app that lets you program and monitor your air curtains from a smartphone.


Commercial Air Curtains

We offer commercial air curtains in a simple design that delivers high performance. They are available in single lengths from 3′ to 10′, white or black powder-coated exterior, custom colors, or stainless steel (Grade 304 or better). There are also AMCA certified ambient and electric heated models available.

Air curtains come with a factory installed “mount anywhere” bracket system that allows for the easiest installation in the industry as the unit comes to the customer’s site fully assembled.

Our QSR drive-thru unit is available in single lengths from 18” to 26” and provides protection from insects as well as helping maintain constant temperatures in a quick service restaurant.

Commercial Air Curtain over Entrance

Commercial Air Curtain over Entrance


Sanitation Certified Air Curtains

Available in single lengths up to 10′, EPH Listed to ANSI/NSF-37, and suitable for outdoor mounting. Single-speed, high-performance, and chosen by restaurants and kitchen designers who are concerned with meeting food service standards, health department requirements, and their own criteria for flying insect control inside their place of business.

These air curtains are most typically used in employee entrances, kitchen doorways, and above overhead doors that are opened to the outside in restaurant seating areas.

Sanitation Certified Air Curtain Black

Sanitation Certified Air Curtain


Industrial Air Curtains

These durable, all welded construction products can be used on bigger applications with mounting heights of 30′ (environmental separation) and 28′ (insect control) and can be up to 16’ long. Typically used in loading dock or bay doors, where these applications face unique challenges based upon the sheer number and size of the openings being covered.

Industrial air curtains not only improve the energy efficiency of a building, they make for a better working environment as they also limit insects, dust, and fumes from entering the work space.

High Velocity Industrial Air Curtains

Electrically Heated Air Curtains


Hazardous Location Air Curtains

Used by petrochemical manufacturing plants, bus garages, and pharmaceutical plants to keep interior temperatures stable and flying insects out when the doors are open, hazardous location air curtains are engineered to perform in extreme conditions. Designed and manufactured to comply with ANSI/NFPA-70 National Electrical Code (NEC) for Electrical Equipment: Class I, Division 1 and 2, Groups C and D for gases, and Class II, Division 1 and 2, Groups F and G for dust. These products are commonly used in areas where dust or flammable gases may create a hazardous situation by keeping temperatures stable.

Hazardous Location Air Curtain

Hazardous Location Air Curtain


Air Entrance Systems

Custom air entrance systems, built into the entrance, provide a recirculating air seal through concealed ductwork, effectively creating a barrier between indoor and outdoor temperature conditions. Open access, safety, and energy efficiency are created out of air — while doors stay open, welcoming people and allowing them to enter freely.

Architectural Recessed Entrance


Door Heaters

Door heaters are used to temper cold air that rushes through open doors by mixing it with high-velocity heated air. This helps the indoor temperature to be more comfortable, keeping both customers and employees happy.

Engineered for versatility, the door heater can be mounted at any angle between horizontal and vertical to satisfy most applications. All heaters are factory assembled and shipped ready for connection to electric power and natural gas supplies.