homeowners.
Natural draft reliability and high efficiency too. Choose intermittent ignition or standing pilot.
Enjoy the easy installation and reliable operation that natural draft design provides, plus high efficiency too. With intermittent pilot ignition, Sentry AFUE's range from 83.1% to 84.4%.
Standing pilot AFUE to 83% — highest in the industry!
Sentry standing pilot models are the most efficient in the industry, according to the I=B=R Boiler Ratings directory. Now, with AFUE’s to 83%,
you can enjoy standing pilot reliability and high efficiency too!
All models include an automatic vent damper.