ProLine® XE Ultra-Low NOx Natural Gas Tankless Water Heater for Indoor Use
Category: a.o.smith water

About this item
- - Keeps performance optimal throughout lifespan compared to X3-less tankless models, which experience 10% efficiency drop within first 1.5 years
- - Copper heat exchanger, designed for commercial use, is 25 times superior to stainless steel in heat transfer, ensuring faster stabilization of outgoing water temperatures
- - Utilizes 316L Stainless Steel for secondary heat exchanger to prevent corrosion
- - High efficiency condensing Ultra-Low Nox tankless water heater achieves up to .93 Uniform Energy Factor (UEF)
- - Compatible with recirculation pump when used with a cross-over valve, available for separate purchase.