The 2005 AHR Expo to be held Feb. 7-9 in Orlando, Fla., now has 19 industry associations endorsing it including Heating, Airconditioning & Refrigeration Distributors International and Radiant Panel Association. The latest added endorser is the International Institute of Ammonia Refrigeration. The show's management said 1,400 companies have already reserved more than 321,000 net sq. ft. of exhibit space.