The Knight XL™ commercial boiler is a modulating/condensing unit. Features include 94.6 percent thermal efficiency, low NOx emissions, zero clearance to combustible materials, and a fully modulating burner with 5:1 turndown. It is available in five models with 399,000-, 500,000-, 600,000-, 700,000-, and 800,000-Btuh inputs. The boiler is equipped for direct-vent installation with air intake and exhaust runs up to 100 feet. In addition, the Smart System™ operating control includes a built-in cascading sequencer for the installation of up to eight Knight XL units, delivering up to 6.4 million-Btuh heating capacity. The Smart System’s control features include outdoor reset, three-pump control, night setback, and password security. The two-line, 16-character LCD display utilizes words instead of codes to communicate with the technician. Optional software for a PC or Pocket PC offers expanded capability for recording, tracking, and analyzing system data to fine-tune operation for performance and troubleshooting.
Lochinvar Corp., 300 Maddox Simpson Pkwy., Lebanon, TN 37090; 615-889-8900; 615-547-1000 (fax); www.lochinvar.com