The Navien NPE-240A2 is a 199,000 BTU condensing natural gas tankless water heater with a built-in recirculation pump. Condensing operation recovers heat that a conventional water heater sends up the flue, which lifts efficiency well above both standard tank units and non-condensing tankless models. Lower flue temperatures also mean the unit can be vented in PVC, cutting both the material cost and the labour of the install.

• 199,000 BTU output, natural gas, interior installation
• Built-in recirculating pump for faster hot water at the tap
• Dual stainless steel heat exchangers
• Ultra condensing efficiency with low NOx emissions (20ppm)
• ½" gas pipe capable up to 24 feet; field-convertible gas system
• SCH 40 2" venting up to 75 feet; common vent up to 12 units
• Cascade up to 32 units for light commercial demand
• EZNav multi-line control panel with built-in HotButton control
• In the box: conversion kit, wall mounting bracket, 4 tapping screws & anchors, 2 vent termination caps, 4 wall flanges

Technical Summary
Model: NPE-240A2
Fuel type: Natural Gas
BTU output: 199,000
Recirculating pump: Yes
Installation: Interior
Type: Tankless
Warranty (residential): 1-year labour, 5-year parts, 15-year heat exchanger
Warranty (commercial): 1-year labour, 5-year parts, 8-year heat exchanger