• Fuel: Gas
  • System: Hot Water
  • Combustion: Natural Draft, atmospheric
  • Capacity: 5 sizes, 34-150 MBH Input
  • Efficiency: up to AFUE 84.4%

Sentry is a gas fired hot water boiler that is ideal for a wide variety of boiler requirements using propane or natural gas.  The new Sentry Vestibule version features front mounted controls for easy setup during installation and hassle-free maintenance.  The Sentry’s classic advanced design provides years of trouble-free, efficient operation while providing easy installation, even in sites with low chimney connections or low overhead clearance.

S-90 and S-120 available in Heating for a Cure pink. We’ll donate a portion of the proceeds to breast cancer research and support charities.

For more information, click here. All Sentry models 2021 compliant.