Product Description
The Navien NFB-399C is a wall-hung water boiler designed for high efficiency. This unit operates on natural gas or propane and has a thermal efficiency rating of 97.5%.
- 399,000 BTU rating for exceptional heating capability
- 15:1 turndown ratio for improved efficiency under varying loads
- Compact wall-hung design for space-saving installation
Product Highlights
Ideal for residential and commercial applications, this boiler provides optimal heating performance while ensuring energy savings.
Product Information
Standard Information
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Brand: Navien
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Mounting: Wall Hung
Technical Specifications
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Efficiency: 97.5%
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BTU: 399K
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Fuel: Natural Gas or Propane
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Turndown: 15:1
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Shipping Weight: 265 lbs