Navien tankless water heaters provide an unlimited amount of hot water at a steady temperature, whenever you need it, for as long as you need it. You truly get an endless supply of hot water!
Designed for simplicity, from the inside out. The NPE is a fully integrated system, designed to provide a high-performance hot water experience.
The NPE Series gas system, which features a negative pressure gas valve, Dual Venturi, and High Speed Fan can use a home’s existing 1/2″ gas line, for lengths up to 24′. It draws in all the BTUs required to achieve maximum burn depending on the model from 150K-199K Btus.
2″ PVC Venting
The NPE’s newly designed intake system, featuring an Air Pressure Switch (APS) and High Speed Fan, combined with Navien’s condensing technology allows for 2? PVC venting up to 60′, often letting the installer run a flue through the existing chase without requiring an additional penetration to be made.
Field Gas Convertibility
Navien’s NPE Series features a simplified gas system, allowing all NPE Series models to be converted from NG to LP in the field in less than 20 minutes. The revolutionary design of its easily accessible dual venturi system makes the conversion as simple as removing some screws, replacing the gas orifice and adjusting the dip switches.
Eliminates “cold-water sandwiches” and issues of minimum flow rate. An insulated internal buffer tank and recirculation pump delivers hot water much faster.
Navien Condensing Technology: Efficient, sustainable and easy for you.
Navien’s condensing technology simultaneously delivers cooled exhaust gas and high-performance, contributing to a solution that uses less energy, makes fewer emissions and saves time on your jobs.
0.95EF – How’s that for Efficient?
Condensing technology effectively utilizes heat that would otherwise be lost, for an unmatched 98% heating efficiency. Its energy consumption and utility bill savings surpass both conventional tank water heaters and non-condensing tankless systems alike.
Low NOx Emissions – Better for the Environment
The NPE’s Premix Metal Fiber Burner is engineered to maintain a consistent air and gas mixture*. This improves combustion efficiency, leading to low NOx and CO2 emissions and a minimized environmental impact. It complies with SCAQMD 1146.2 strict NOx emissions standards.
*20ppm at 3% O2, dry.
PVC Venting – Saves Installation Time
By re-capturing heat exhaust before it leaves the system and using it to pre-heat incoming water, the NPE simultaneously produces more hot water than other systems and low exhaust gas temperature. PVC, CPVC and Polypropylene vent systems can be safely used, significantly reducing installation cost and hassle.