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Navien NCN-37K LPG - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can find out the energy efficiency of your boiler by checking its energy rating; you can do this now by selecting the make and model below.

A boiler’s energy rating is an indicator of its efficiency when used within an average domestic household. It's a great benchmark for comparing new boilers and can help you work out how much money you could save on energy bills if you replaced your current boiler with a more efficient model.

For new boiler installations call British Gas Boilers on 0333 230 5216 for a no-obligation quote. Alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Navien NCN-37K Efficiency

SAP seasonal efficiency91.8%
Rating bandBand A


ManufacturerNavien Boilers
Fuel TypeLPG
Flue TypeOpen or Room-Sealed
FanFan Assisted
Output (kW)34.2 - 34.2
Boiler ID
Manufactured From/To2010 - current


The Navien NCN-37K is an 'A' rated boiler which has an excellent efficiency of 91.8%.

The NCN-37K is a Condensing Combi boiler with a maximum power output of 34.2kw that uses LPG as its fuel source.

As this boiler is 'A' rated it will provide efficient heating and subsequently reduce fuel bills and carbon dioxide emissions.

Similar Navien Boilers to the NCN-37K
(Condensing LPG Combi)

Results ordered by efficiency. Some models may be obsolete.

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