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Navien - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can check your boilers rating by selecting it's make and model below. Ratings are based on the SEDBUK Rating which is an indicator of its efficiency when used within an average domestic household, it's a great benchmark for comparing new boilers and also assessing whether your current boiler would be better off being replaced due to low efficiencies.

For new boiler installations call British Gas Boilers on 0800 327 7119 for a no-obligation quote, alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Navien Boilers

ModelTypeFuelEfficiencyMore Info
Navien NCN-21K Condensing Gas 90.3% More Info
Navien NCN-21K Condensing LPG 92.4% More Info
Navien NCN-25K Condensing Gas 90.3% More Info
Navien NCN-25K Condensing LPG 92.0% More Info
Navien NCN-32K Condensing Gas 90.4% More Info
Navien NCN-32K Condensing LPG 92.1% More Info
Navien NCN-37K Condensing Gas 90.3% More Info
Navien NCN-37K Condensing LPG 91.8% More Info