Navien Instantaneous or Tankless Water Heaters imported  Navien America Inc., of Irvine, Calif. Are being recalled related to an unstable connection can cause the water heater’s vent collar to separate or detach if pressure is applied. A detached vent collar poses a risk of carbon monoxide poisoning to the consumer.  Navien tankless hot water heaters are white with “T-Creator” and “NAVIEN” on the front. Recalled model numbers are CR-180(A), CR-210(A), CR-240(A), CC-180(A), CC-210(A) and CC-240(A) manufactured in 2008. A label on the side of the water heater lists the model number along with the manufacturing year in YYYY format.   Wholesale distributors to in-home installers nationwide from February 2008 through March 2009 for between $1,500 and $2,100

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