Navien NPE-S2 Series 199 MBH Indoor/Outdoor Condensing Natural Gas Tankless Water Heater
The Navien NPE-S2 is a 199,000 BTU/h condensing tankless water heater built for homes and light commercial buildings that need a large, steady supply of hot water.
- Condensing design with durable stainless steel heat exchangers
- Indoor or outdoor installation
- Advanced multi-line control panel with built-in HotButton™ on-demand recirculation
$473.99
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Description
Navien NPE-S2 Series 199 MBH Indoor/Outdoor Condensing Natural Gas Tankless Water Heater
The Navien NPE-S2 is a 199,000 BTU/h condensing tankless water heater built for homes and light commercial buildings that need a large, steady supply of hot water. Its stainless steel heat exchangers resist corrosion over the long term, and the unit installs indoors or outdoors, so it suits new builds and replacements alike.
Key Features
- Condensing design with durable stainless steel heat exchangers
- Indoor or outdoor installation
- Advanced multi-line control panel with built-in HotButton™ on-demand recirculation
- Field-convertible gas system, LP conversion kit included
- Ultra-low NOx emissions (20 ppm)
- Common venting for up to 12 units; cascade capable for higher demand
Ideal For
- Residential homes with several bathrooms
- Light commercial water heating
- Multi-unit cascade installations
Specifications
| Brand | Navien |
|---|---|
| SKU | TGG-TWH-001 |
| Series | NPE-S2 |
| Input | 199,000 BTU/h |
| Fuel | Natural gas (LP kit included) |
| Installation | Indoor / outdoor |
| 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.

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