Description
Navien – NHB 150NG
CONDENSING HEATING BOILER
15:1
T U R N D O W N
R A T I O
Industry’s largest turn down ratio in the NHB-150 providing ease of installation with multiple zones while maintaining high operational efficiencies.

NHB Integrated control
The integrated control provides industry leading options and features in the boiler operation parameters, including:
- Adjustable heat capacity.
- A timed hydronic supply water boost feature.
- Adjustable anti-cycle timer.
- Freeze protection.
- Pressure LWCO with manual reset.
- Adjustable minimum burner time setting.
- Adjustable turn down ratio timing.
- Outdoor reset and domestic hot water priority.
- Adjustable outdoor temperature reset curves.
- Field gas convertible.
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