vertical air curtain

Vertical Air Curtain – Ambient or Gas Fired

Vertical Air Curtain – Vertical Door Air Curtains or vertical air doors are often used where entrances or doors are required to stay open for operational purposes, such as vehicle entrances ,loading bays or building entrances. They are used to help keep the external air from entering the building or area by creating a forceful turbulence over the door way or entrance – thus reducing infiltration through the opening and cold drafts can be avoided by heating the air if so required. Heated vertical air curtains are most commonly used when additional or supplemental heat is required for an area, and also to eliminate the wind chill factor in areas with a colder climate. Another advantage of these vertical air curtains is that the “curtain of air” at high pressure also helps keep flying insects from entering the building, which the doors or entrance is open. Applications for these air curtains include cargo doors, customer entrances, air plane hangars, goods inwards and goods outwards /despatch doors, restaurant doors, or any commercial or industrial application

We do two versions of our vertical air curtains, either ambient air or gas fired versions. Our vertical gas fired air curtain range, the FAC-V range is composed of a gas heater, and air curtains which are fuelled by either with natural gas (G20/G25) or propane gas (G31) as their energy source. The range includes 1 model of 45 kW Output. We also supply an ambient range, which is not a heated unit, which uses the surrounding ambient air to produce a powerful air curtain .These vertical door air curtains are designed to create a horizontal air barrier across the door in order to protect against the cold outside air, and to avoid any heating loss from inside the warehouse or building to the external air .The FAC-V gas fired range are used to protect doors from 2 to 4 metres high and up to 4 metres wide, and our vertical ambient air range the “FHIAC” range ( detailed lower on this web page) can cover doors up to 6 Metres in height.

Vertical air curtains installed on site – Below you can see our gas heated vertical air curtain model


Vertical Air Curtain


Product advantages                                Customer benefits
Efficient air blast                                        Strong thermal barrier to avoid any cold air entrance or warm fair loss

Heated and/or ambient                            Flexibility according to each door and user needs
door curtain

Heating or Ventilation only                      Use in summer and winter time
Gas heater with air curtains                    Protect the door and heat the area


Vertical Door Air Curtains Benefits – Gas Fired Version

• Multi jet burner with low NOx emission
• Efficiency up to 91%
• Full coverage of the door.
• Central command by pilot wire
• Automatic safety device check

This range of gas fired vertical air curtains is fully ErP energy efficiency compliant and deliver a powerful barrier of heated air across open entrances or doorways, stopping indoor heat from escaping and creating an increased cost efficient and comfortable indoor environment.

gas fired vertical air curtain; vertical door air curtains; industrial air curtain; commercial air curtain heaters;

Using both heated air and ambient air provide the most efficient method of providing a vertical air curtain system

Our vertical air curtains help promote the perfect environment whether warm, or ambient – creating a comfortable climate for customers and employees. Vertical air curtains promote open door trading in retail outlets by providing uninterrupted access for passing trade, and promote significant energy savings. Our vertical air curtains are not only easy to install but also easy to maintain throughout their serviceable life. Comes complete with a switch box controller. The Flexiheat vertical range of industrial and commercial air curtains is ideal for medium to large sized buildings with a high pedestrian flow that require high output of air such as industrial doors at airports, shopping centres, factories and warehouses.For extra wide doorways, placing a unit either side of the entrance creates a more efficient thermal barrier.

Download the Flexiheat “FACV” Vertical Air Curtain Brochure Gas Fired

Download the Flexiheat Technical Manual for all Gas Air Curtain Heaters

Vertical Air Curtains /Vertical Door Air Curtains with Ambient Air

We now have developed a new and improved industrial and commercial vertical air curtain, which uses the ambient air , these vertical door air curtain units can be used in different combinations of lengths to cover roller shutter doors or up and over doors that are 6 metres high, in a vertical door air curtains configuration.There are two models or modules of these vertical ambient air curtains, the first is a 1.5 Metre long unit and the other is a 2 Metre long unit. They are basically modules that can be coupled together to make up your desired height for your industrial or commercial overhead roller shutter type door that you need to cover- not exceeding 6 metres in height.This range of commercial and industrial vertical air curtains is designated the “FHIAC” range, and look like the below picture when installed on a commercial / industrial door.

vertical air curtain,vertical door curtains, for industrial and commercial applications


Ambient temperature is the air temperature of any environment where the vertical air curtains are installed. The adjective ambient means “relating to the immediate surroundings.” Thus the air pushed through these air curtains is the air temperature of the building or warehouse in which they are installed.

These vertical air curtains provide a powerful curtain of air across an opening or door way, preventing warm or cool air escaping from your building or preventing the ingress of cold or warm air from entering, depending on the season. They help minimising energy costs and maximise not only comfort, but also convenience.

Download the Flexiheat Commercial and Industrial Vertical Ambient Air Curtains Brochure “FHIAC” Range

Vertical Air Curtains or Vertical Door Air Curtains for Sale UK & Ireland 

Should you require anymore assistance or information on our Vertical Air Curtain range – either ambient air or gas fired or Vertical Door Air Curtains , please don’t hesitate to contact our sales team on 01202 822221 or click here for our email contact form.