FREE TOOL: Online Ventilation Sizing & Commissioning Tools Download Rick Karg’s Toolbox of Online Ventilation Sizing and Commissioning Tools for FREE. These free online tools will allow architects, engineers, ventilation designers and installers to size ASHRAE 62.22013 ventilation, determine the flow rate of existing ventilation equipment, determine the electrical… Continue reading “FREE TOOL: Online Ventilation Sizing & Commissioning Tools”