Listed on the maker's page · checked 2026-10-20

Blaze King Sentry S14 wood stove

Blaze King rates the Sentry S14 for Up to 1,300 sq ft with an output of 24,453 BTU/h (constant heat output on High). The firebox holds 1.46 cubic feet, #18 by size of the 20 stoves listed here, and particulate emissions are 1.42 g/h, 71% of the EPA's 2 g/h limit.

1Heating area Up to 1,300 sq ft
2Output 24,453 BTU/h
3Firebox 1.46 cu ft
4Particulate 1.42 g/h

Specification	Blaze King Sentry S14
Heating area	Up to 1,300 sq ft
Output	24,453 BTU/h (constant heat output on High); low 8,699 BTU/h
Efficiency	78.4% HHV (tested HHV efficiency)
Particulate emissions	1.42 g/h
Firebox	1.46 cu ft
Log length	up to 16 in
Flue	6 in
Weight	Not published
Burn time	7 to 10 hours average heating time

Published output of the Blaze King Sentry S14 and the four listed stoves closest to it. Makers define the figure differently (maximum, top of the EPA test range, or constant output on High); each stove's page says which. Bars to scale from zero.

What the Sentry S14 heats

On this site's floor-area pages the Sentry S14 appears for the up to 1,200 sq ft and 1,200 to 2,000 sq ft bands. At its top rating of 1,300 sq ft, a 1970s house in Oregon needs about 19,532 BTU/h on a 0°F night, below the stove's 24,453 BTU/h. The same floor area built before 1950 in North Dakota needs about 24,991 BTU/h, more than the published output, so in a cold state or a leaky house the maker's area rating is optimistic.

Floor area	1970s house, Oregon	Pre-1950, North Dakota	Within 24,453 BTU/h?
1,000 sq ft	15,024	19,224	Both
1,500 sq ft	22,537	28,836	Median state only
2,000 sq ft	30,049	38,448	Neither
2,500 sq ft	37,561	48,061	Neither

These are estimates from average use, not a heat-loss calculation of a real house, and a stove heats the room it stands in first. The Sentry S14 runs from 8,699 to 24,453 BTU/h, a 2.8-to-1 range, which helps in mild weather when a big stove would otherwise be turned down and smoulder.

Wood it burns in a winter

With its published 78.4% efficiency, heating 1,300 sq ft (built in the 1970s) on generic 20 million Btu cords takes about 2.4 cords in Oregon and 4.2 cords in North Dakota. It takes logs up to 16 in, so standard 16-inch face-cord wood fits; University of Maryland Extension suggests cutting wood about 3 inches shorter than the firebox. The maker quotes 7 to 10 hours average heating time per load.

The species that burn best in any stove are the dense hardwoods Utah State rates excellent overall: osage-orange (30.5), black locust (28.3), white oak (27.9), apple (27), bur oak (26.3) million Btu per cord. Burn them dry; see how to season firewood.

Emissions and EPA rules

At 1.42 g/h the Sentry S14 is 71% of the EPA's May 15, 2020 limit of 2 g/h and 57% of the 2.5 g/h limit for stoves certified on cord wood. The EPA rules guide explains the limits.

Similar stoves

Blaze King Boxer 24: 25,389 BTU/h, No area published
Woodstock Survival Hybrid 212: 27,294 BTU/h, Up to 1,000 sq ft
Blaze King Ashford 20.2: 32,776 BTU/h, No area published
Blaze King Princess 32: 36,300 BTU/h, No area published

Source: Blaze King, Sentry S14 product page, checked 2026-10-20. Ratings are the maker's own; installation clearances and permits follow the installation manual and local code. See the methodology.