Navien NPE-180S2 – Condensing Tankless Water Heater – 150,000 BTU
The Navien NPE-180S2 is a condensing tankless water heater with an input range of 15,000 to 150,000 BTU/h and a 0.96 UEF, supplying up to 8.4 GPM of continuous hot water.
- 150,000 BTU/h input with 0.96 UEF
- Up to 8.4 GPM at a 35°F temperature rise
- Dual stainless steel heat exchangers, ultra-condensing efficiency
$483.29
Payment Methods:
Description
Navien NPE-180S2 – Condensing Tankless Water Heater – 150,000 BTU
The Navien NPE-180S2 is a condensing tankless water heater with an input range of 15,000 to 150,000 BTU/h and a 0.96 UEF, supplying up to 8.4 GPM of continuous hot water. It is ENERGY STAR® certified, installs indoors or outdoors, and suits homes with several bathrooms as well as light commercial buildings.
Key Features
- 150,000 BTU/h input with 0.96 UEF
- Up to 8.4 GPM at a 35°F temperature rise
- Dual stainless steel heat exchangers, ultra-condensing efficiency
- EZNav™ backlit multi-line control panel with HotButton™
- Field-convertible gas system (NG/LP)
- Indoor or outdoor wall-hung installation
- 1/2" gas line capable up to 24 ft
- Ultra-low NOx emissions (20 ppm)
- Direct venting: 2" PVC up to 60 ft
- Ready-Link cascading up to 32 units
- Includes wall bracket, anchors, 2 vent terminators and 4 wall flanges
Ideal For
- Homes with high hot-water demand
- Light commercial water heating
- Cascaded multi-unit systems
Specifications
| Brand | Navien |
|---|---|
| SKU | TGG-TWH-018 |
| Model | NPE-180S2 |
| Input | 15,000–150,000 BTU/h |
| Efficiency | 0.96 UEF |
| Max flow | 8.4 GPM at 35°F rise |
| Recirculation | HotButton™ / NaviCirc® ready |
| Fuel | Natural gas or propane (field convertible) |
| Connections | 3/4" NPT gas, hot, cold |
| Power | 120V single phase |
| Condition | New |
Installation
Professional installation by a licensed gas or heating contractor is required; check local codes before purchase.
Shipping & Returns
- Free shipping within the continental United States
- 90-day returns on unused items in original packaging
Appliances Corner Store is an independent retailer and is not affiliated with Navien. Brand names and model numbers are used only to identify the product.

Reviews
Clear filtersThere are no reviews yet.