DesignStein LLC: HVAC Slide Rules
The SuperCool Slide Rule is a compilation of four different HVAC slide rules. It performs superheat and subcooling calculations for both R-22 and R-410A, and contains the most comprehensive duct calculator ever created, claimed the company. The duct calculator includes sizing for flex, round metal, insulation lined metal, ductboard, and rectangular metal duct material. The SuperCool also contains every formula and conversion in use by today’s technician, the company said. The tool allows instant access to over 100 HVAC training tutorials by scanning the QR code with a smartphone or by visiting the website.