- 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.
FEATURES
HOW IT 
PRODUCT
HOMEOWNER 
RELATED- Fuel: Gas
- System: Hot Water
- Natural Draft, Atmospheric
- Capacity: 34-150 MBH
Up to 84.4% AFUE - Intermittent ignition
- Integral draft hood fit sites with clearance as low as 38-1/2"
- Low profile makes problem installations easy
- Advanced natural draft design promises efficiency & reliability
- Includes a reliable, heavy-duty motorized vent damper to maximize efficiency
- Metal push nipples connect individual sections
- 25 Year Limited Lifetime Warranty!
- All Sentry Models DOE 2021 compliant
- S-90 & S-120 Available in Pink -portion of proceeds to support breast cancer charities and support groups
