YC-Backed Ravti Wants To Digitize The HVAC Industry | TechCrunch

techcrunch.com/2014/08/19/yc-backed-ravti-wants-to-digitize-the-hvac-industry

Ravti co-founder Alex Rangel walked into TechCrunch with a stack of crumpled yellow slips in his hand. "This is what the Heating, Ventilation and Air..

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