Navien NHB-H Series 55 MBH – High Efficiency Condensing – Heating Boiler
The Navien NHB-H 55 is a compact condensing heating boiler for spaces with a modest heat load, such as additions, apartments, garages and well-insulated homes.
- 55,000 BTU/h input, 95% AFUE condensing efficiency
- Deep modulation for small, low-heat-loss spaces
- Low-NOx burner meets strict emissions requirements
$663.99
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Description
Navien NHB-H Series 55 MBH – High Efficiency Condensing – Heating Boiler
The Navien NHB-H 55 is a compact condensing heating boiler for spaces with a modest heat load, such as additions, apartments, garages and well-insulated homes. At 55,000 BTU/h and 95% AFUE, it modulates down far enough to match small loads without short-cycling, which is where oversized boilers waste fuel.
Key Features
- 55,000 BTU/h input, 95% AFUE condensing efficiency
- Deep modulation for small, low-heat-loss spaces
- Low-NOx burner meets strict emissions requirements
- Heating-only; pairs with an indirect tank for domestic hot water
- Direct-vent sealed combustion, no chimney required
- Natural gas or propane operation
- Compact 24" x 24" indoor wall-mount cabinet
- ENERGY STAR® qualified, 120V electronic ignition
Ideal For
- Additions and garages
- Apartments and condos
- Small, well-insulated homes
Specifications
| Brand | Navien |
|---|---|
| SKU | TGG-BLR-001 |
| Series | NHB-H |
| Input | 55,000 BTU/h |
| AFUE | 95% |
| Fuel | Natural gas or propane |
| Power | 120V |
| 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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