The Noble fire tube combi from Lochinvar provides DHW from 2.6 (NKC110) to 4.8 gpm (NKC199) at a 77F temperature rise. Three models are available (110,000, 150,000 and 199,000 Btuh). A backlit, user-friendly LCD display provides diagnostic information and system status in words, not codes. The Set-Up Wizard display makes it simple to set system parameters in just minutes. Features include an adapter free flue connection, direct venting up to 100 ft., advanced negative regulation technology and NPT water connections.
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