LAARS-PENNANT HYDRONIC BOILER; Date 2006; Mod# PNCH1000NACN2CJN; Ser# C 06 178219; Natural Gas; input rate, 999,960 Btu/hr; output rate, 839,200 Btu/hr; Max W.P. 160psi; Max water temp. 250 deg. F; Heating surface 109 sq. ft.