Portable heat pump combines a compact design with powerful performance and versatile heating and cooling options. The new PACSlim-5 heat pump delivers 57,100 BTU/hr cooling capacity and 55,700 BTU/hr heating capacity, yet is less than 30-in. wide. Atlas Sales & Rentals, Inc., www.atlassales.com/pacslim5, 800-972-6600. Portable heat pump