Boilers

Why ENERGY STAR?

ENERGY STAR certified boilers have annual fuel utilization efficiency (AFUE) ratings of 87% or greater for oil boilers and 90% or greater for gas boilers. AFUE is the measure of heating equipment efficiency. They achieve greater efficiency with features, including:

  • electronic ignition, which eliminates the need to have the pilot light burning all the time
  • new combustion technologies that extract more heat from the same amount of fuel
  • sealed combustion that uses outside air to fuel the burner, reducing drafts and improving safety

Learn about the benefits of efficient wood stoves for heating.

An ENERGY STAR certified gas boiler can save more than $770 over the lifetime of the product, while an ENERGY STAR certified oil boiler can save more than $425 over its lifetime.

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BUYING GUIDANCE

What else should I look for when buying a boiler?

If you've decided that you need to purchase a new boiler, learn how to hire a contractor.

Be sure to look for the ENERGY STAR when shopping for a boiler

The current boiler specification is effective as of October 1, 2014.  

ENERGY STAR certified gas boilers have annual fuel utilization efficiency (AFUE) ratings of 90%, approximately 8% more efficient than the federal standard. 

ENERGY STAR certified oil boilers have annual fuel utilization efficiency (AFUE) ratings of 87%, approximately 3% more efficient than the federal standard.

Learn How a Product Earns the Label

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