Got this a while ago but decided we didn't want to go with LP. Our loss is your gain. Still in box. Retails for $2000+ Pickup only. $1000OBO
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"The Bosch Therm C 1210 ESC Condensing tankless water heater is the highest performance, fully condensing gas tankless water heater from Bosch. This 225,000 BTU heater is designed for commercial applications and can deliver hot water up to 180 degrees F with a 12.1 GPM flow rate.
Unlike traditional non-condensing models, condensing technology captures heat from the exhaust gas and uses it to preheat the incoming cold water. This increases efficiency and reduces emissions -- well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California -- South Coast Air Quality Management District).