Winterwarm ambient air curtains (ACMs) force a flow of air across an open door using fan modules which incorporate a focussing plenum to increase air speed. The air is drawn from above the fan module (or from the side in the case of horizontal installations) to create a barrier to heat loss through the opening. If additional heat is required, this can be provided by a supplementary air heater, blowing war air above the fans, which is more flexible and cost effective than having an integrated unit. The two installation options are:
- Horizontal Installation positioned above a door opening.
- Vertical Installation positioned to the side of a door opening where roller shutters or building infrastructure limit positioning the units above the door.