Noritz Noritz 11.1 GPM 199900 BTU 120 Volt Commercial Condensing Indoor Lenox (Direct Vent) Liquid Propane On Demand Tankless Water Heater

The NCC1991-DV-LP is the next generation in commercial tankless hot water heater systems. This liquid propane condensing heater utilizes a dual heat exchange of stainless steel and copper, using their strengths to enable a tankless water heater to perform at an efficiency level of 93%, while reducing carbon dioxide output and lowering exhaust temperatures. Not only will you be saving the usual space, time and energy you expect from Noritz tankless heaters, but the venting accessories now save you even mo...