CondensingResidentialHigh-Efficiency
Navien NHB Heating Boiler
A heating-only condensing boiler with an industry-leading 15:1 turndown ratio.
94–95% AFUE$2,600 – $4,600 installed2 models
NHB Heating Boiler models
CondensingENERGY STAR
NHB-110 Heating Boiler
AFUE
95%
Output
104k BTU
Turndown
15:1
Warranty
12 years
Installed from
$4,200
CondensingENERGY STAR
NHB-150 Heating Boiler
AFUE
95%
Output
142k BTU
Turndown
15:1
Warranty
12 years
Installed from
$4,600
Other Navien series
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