Robert Hoerter has been in HVAC for 27 years, starting in a union shop doing major absorption systems, chillers, and large commercial crane work before building DB Heating and Cooling into a 70% residential, 30% light commercial operation in northern New Jersey. He runs a team he deeply values, stacks R32 and 454B before every season, installs suction filter dryers on every system, and runs a Manual J on every single install. He built one of his biggest early commercial accounts from a single conversation at a supply house counter.