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Sentry is a hot water boiler heating system which is ideal for a wide variety of gas boiler requirements, as a replacement or for new installations. Its advanced design provides years of trouble-free, high efficiency operation while providing easy installation, even in sites with low chimney connections or low overhead clearance.
|Annual Fuel Utilization Efficiency (AFUE) (%)||82.3||Assembled Depth (in.)||19.75 in|
|Assembled Height (in.)||32.5 in||Assembled Width (in.)||20.675 in|
|Capacity (gallons)||3.8||Certifications and Listings||CSA Listed|
|Condensing/noncondensing||Noncondensing||ENERGY STAR Certified||No|
|Energy Consumption (kWh/year)||1.||Fuel Gauge||No|
|Fuel type||Natural Gas||Heat rating (BTU/hour)||90000|
|Heating Product Type||Boiler||Heating Technology Type||Radiant|
|Ignition Type||Interrupted Spark||Manufacturer Warranty||Limited Lifetime|
|Product Depth (in.)||19.75 in||Product Height (in.)||32.5 in|
|Product Weight (lb.)||277 lb||Product Width (in.)||20.675|
Curbside Truck Shipping (By Appointment) includes delivery to receiving area/dock for businesses or curbside for residential orders. The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.
If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.
Schedule delivery is available for items currently in stock at a The Home Depot store within a delivery ZIP code. A driver from a local store will deliver the item(s).
Outside Delivery: Service includes delivery to area outside the house which is accessible by delivery equipment.
Threshold Delivery: Service includes delivery across your first doorway or threshold (ie. garage, backyard, deck, first room of the home).