BOSCH Therm 940 ES Non-Condensing Natural Gas Tankless Water Heater
Features:
Highest capacity non-condensing model
Built-in freeze protection
Application: Solar thermal, recirculation & space heating applications; Residential or Commercial
Electronic ignition and patented burner design
83%+ thermal efficiency
Warranty: 15 year limited warranty on heat exchanger, 3 year warranty if
used in direct recirculating applications; 15 year warranty on heater
exchanger if used if recirculated through a storage tank such as the
Ariston mini-tank; 5 year on all other parts
Vents vertically or horizontally with 3" or 4" stainless steel