The NPE-A high efficiency tankless water heater can de-liver a .97 EF in residential and commercial applications where a continuous stream of hot water is critical and a recir-culating pump is needed. The heater can be vented up to 60' with 2" PVC or CPVC piping, saving time and money. There is no need to cut new chases. A negative pressure gas valve and dual venturi system allows the unit to be easily converted from NG to LP gas in the field. A dual stainless steel heat exchanger resists corrosion better than copper for long, dependable performance.
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