High Performance Solar Air Heating “It used to take over 3 hours to reheat the hangar when they opened the doors to get an aircraft out. Now its only taking 45 minutes, so they don’t have to use all that natural gas from the conventional heating system.” -Tom Long, Airport Manager at Plattsburgh International Airport The SolarWall® air heating technology has always generated an impressive economic return for commercial & industrial buildings due to its high efficiency & low capital costs. It has been primarily used for ventilation heating or process applications, with a consistent track-record of delivering high energy performance in all projects around the world. Up to 54% More Thermal Energy Independent testing & field applications have shown that SolarWall 2-Stage will deliver up to 50%+ more energy than a conventional SolarWall system, with temperature rises over 100°F (55°C) frequently achieved. * Test Conditions; 1 CFM/ft2 and 900 watts of solar radiation Introducing SolarWall® 2-Stage SolarWall® 2-Stage is the latest version of the SolarWall® technology and it builds on the technological success of the original solar air heating system. SolarWall® 2-Stage has been configured to deliver a higher temperature rise - up to 36-85°F (20-47°C) above ambient temperature - which makes it more applicable for space heating applications. It is also ideally suited for roof-mount projects and windy locations. [And as the wind speed increases, the energy output of the 2-stage system will continue to increase relative to the conventional SolarWall system.] It operates on the same premise as the original SolarWall® technology in that outside air is heated and drawn into an air cavity via tiny mirco-perforations in the SolarWall collector. With the 2-Stage system, the air is then heated a second time (which boosts the temperature rise) as it passes though a second stage of the system. The solar heated air is then directed into the building’s ventilation system - or through a dedicated SolarWall fan & ducting system - where it is distributed throughout the building.

High Performance Solar Air Heating Features & Advantages 1st Stage - Sun heats SolarWall® collector and fresh air is heated as it passes through the surface 2nd Stage - Air is further heated as it passes behind the glazing and through the second stage •• Higher energy output that substantially lowers heating bills •• Delivers significantly more thermal energy (up to 50% more) than a conventional low-flow SolarWall® system The solar heated air is then distributed via ventilation or SolarWall® fan & ducting system •• eats air 36-85˚F (20-47˚C) above ambient on a sunny day H •• Monitored systems...