Make-Up Air Systems— Total SOLUTION™ Industrial Space Heaters (The Dragon™) Make-Up Air Heating & Air Conditioning (The Firefox™) 80/20 Pressurization & Recirculation (The 80/20 PR™) Indirect-Fired Make-Up Air (Pure Air™) Industry-Specific Applications Make-Up Air Systems Complementing our Johnson Air Rotation® System is a series of direct and indirect-fired heaters, air conditioners, and make-up air equipment and custom air handling equipment that allows our application engineers to provide customers with a Total SOLUTION™ to their HVAC needs. Our HVAC equipment conditions building air in every way—heating, cooling, humidifying, dehumidifying, filtering, cleaning, sanitizing, and ventilating it from a location inside or outside the building, i.e., rooftop, floor or ground mounted, and ceiling or wall hung. Consulting engineers, contractors and end users—our customers—can rely on Johnson MarCraft for a Total SOLUTION™ to their HVAC needs for warehouses, distribution and manufacturing facilities, or for custom applications in hospitals and many other large specialty buildings.