Bradford White tank-less natural gas water heater, new in original box.  Unit was manufactured around 2011 but was never installed/used.  Unit was supposed to be a replacement for existing tankless water heater, but ended up moving to Kansas.  Was going to install at the house that we purchased but house had one in it.  

PLEASE NOTE: 

• Manufacturer will not warranty this unit due to age, even though it's new.
• Very specific UBINK type of flu needed (pipe within a pipe), and is required for this unit.  Please see photo.  Flu MUST be stainless steel type. Any other flu pipe will cause damage or fire to either the unit itself or the dwelling it goes in.
• Does NOT include installation of unit, additional plumbing material or flu pipe.
• Unit is sold as is.

Manufacture, recommends isolation valves for hot and cold, and requires yearly maintenance of cleaning.