Bob Vance of Vance Refrigeration has introduced himself dozens of times as, “Bob Vance, Vance Refrigeration” to the worker drones at Dunder Mifflin on The Office, but until now, no one really could ...

Variable refrigerant flow (VRF) systems were first introduced to the HVAC community in Japan in 1980 as a highly efficient heating and cooling option in multi-zone comfort applications. It took the ...