In the past, forced-air zoning was not readily accepted by the HVAC industry. Numerous concerns and misconceptions prevented the benefits of forced-air zoning from truly being appreciated. As each myth or concern was cleared away and resolved, another would take its place. But thanks to the devotion and dedication of those involved in its conception, refinement, and growth, forced-air zoning has overcome many obstacles proven these misconceptions and to be false. Forced-air zoning has become a widely accepted means of saving energy and increasing consumer comfort.
The most recent misconception to be encountered when performing field training or when discussing system specifications includes the use of variable-speed indoor blower motors with a forced-air zoning system. For example, many contractors state, “I can’t install a zoning system with a residential variable-speed air handler or variable-speed furnace.”