Throughout its coverage, The News has kept track of industry trends, and this report combines information from several articles previously published in The News analyzing the changes in the market driven by the 13 SEER standard.
In general, HVAC insiders have agreed that back in the early stages of the 12 SEER vs. 13 SEER debate, the Air-Conditioning and Refrigeration Institute (ARI) pointed out that in many instances, "it will be very difficult to physically fit the larger indoor coil, needed to match the outdoor 13-SEER condensing unit, without retrofitting the air handler originally designed for a smaller, lower-SEER indoor coil."