Others are essentially ready to clear out the old and bring in the new, hoping for a quick conversion of buyers to the new standard starting by mid-2005. They are encouraged by some contractors' growing sales of 13-and-higher-SEER equipment.
Recognizing the larger footprint of 13-plus-SEER units compared to those of 10- and 12-SEER equipment, distributors are expanding warehouse space and already computing the effect of trucking changes. The larger units will mean fewer systems shipped per truckload. Size might even affect what an installer can haul to a site.