Osburn OB04002 - Manual (Page 8)

Stratford Fireplace Installation and Operation Manual
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2 GENERAL INFORMATION
2.1 STRATFORD SPECIFICATIONS
Fuel Type Cordwood
Test Standards (safety) ULC-S610 and UL 127
Test Standard (emissions) EPA Method 28 (40 CFR Part 60)
Heating capacity range* 750 to 2100 sq. ft. (70 to 195 m
2
)
Maximum heat output**
(EPA test fuel)
30,450 BTU/h (8.9 kW/h)
Maximum heat output**
(natural hardwood fuel)
75,000 BTU/h (22 kW/h)
Optimum efficiency 77 %
Particulate Emissions 4.4 g/h
Burn Time* 8 to 9 hours
Shipping Weight 416 lb (189 kg)
Firebox Volume 2.5 cu.ft. (0.071 m
3
)
Maximum Log Length 21" east-west***
Flue Outlet Diameter 6" (150 mm) diameter (vertical)
Baffle Material C-Cast
Mobile home approved No
* Burn time and heating capacity may vary subject to location in home, chimney draft, chimney
diameter, locality, heat loss factors, climate, fuels and other variables.
** The EPA test fuel is dimensional Douglas fir pieces stapled together into cribs with air spaces
between. We also test using the same procedure except using split hardwood firewood to reflect
real-world heat output. This fireplace is not intended to operate at its peak heat output
continuously.
*** East-west: through the door you see the sides of the logs.