{"id":59528,"date":"2026-04-20T15:12:21","date_gmt":"2026-04-20T19:12:21","guid":{"rendered":"https:\/\/www.belleflamme.ca\/?post_type=product&p=59528"},"modified":"2026-04-20T15:19:57","modified_gmt":"2026-04-20T19:19:57","slug":"focus-3600b-wood-fireplace-by-rsf","status":"publish","type":"product","link":"https:\/\/www.belleflamme.ca\/en\/product\/focus-3600b-wood-fireplace-by-rsf\/","title":{"rendered":"FOCUS 3600b Wood Fireplace by RSF"},"content":{"rendered":"\t\t
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The RSF Focus 3600B is a high-performance wood fireplace designed to deliver an outstanding balance of power, efficiency, and compact size. Ideal for both renovation projects and new construction, it stands out with its large viewing area, contemporary built-in design, and ability to fit beautifully into a wide range of spaces. With only 1.7 g\/h emissions, 75.3% optimum efficiency, and heat output reaching up to 50,000 BTU\/h, the Focus 3600B combines warmth, strong performance, and clean-burning operation. Its 2.04 cu. ft. firebox accepts logs up to 18 inches and can heat an area of approximately 800 to 1,500 sq. ft. Thanks to its compact footprint and available heat distribution options, this RSF wood fireplace is an excellent choice for homeowners looking for a reliable, elegant, and efficient heating solution.<\/p>

Focus 3600B<\/strong><\/p><\/div><\/div>

Note: The installation manual should always be used for the precise planning and accurate installation of your fireplace.
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GENERAL SPECIFICATIONS<\/th><\/tr>
Outside Dimensions<\/strong><\/td>34 3\/8\u2033 W X 40 5\/8\u2033 H X 22 1\/2\u2033 D<\/td><\/tr>
Firebox Dimensions<\/strong><\/td>

2.04 cu ft<\/p>

Based on overall firebox dimensions, EPA firebox volume per certification testing is 1.6 cu ft<\/p><\/td><\/tr>

Shipping weight<\/strong><\/td>398 lbs<\/td><\/tr>
Glass viewing size<\/strong><\/td>

241 in2<\/sup><\/p>

20 \u00bd\u201d W x 11 \u00be\u201d H<\/p><\/td><\/tr>

Firewood Length<\/strong><\/td>EPA tested with cribwood. Can accept up to 18\u2033 logs.<\/td><\/tr>
Chimney<\/strong><\/td>6\u2033 Excel<\/td><\/tr>
Door Finish<\/strong><\/td>Black<\/td><\/tr>
Outside Air<\/strong><\/td>

4\u2033, meets R2000<\/p>

All RSF models come equipped to accept a 4\u2033 outside air duct, a 5\u2033 can also be used. All models can also be installed to operate using room air.<\/p><\/td><\/tr>

Mobile Home Approved<\/strong><\/td>YES<\/td><\/tr><\/tbody><\/table><\/div><\/div>
PERFORMANCE<\/th><\/tr>
EPA Certification<\/strong><\/td>

1.7 g\/h<\/p><\/td><\/tr>

BTU Output<\/strong><\/td>

19,077 BTU\/h<\/p>

Based on EPA certification testing using cribwood and calculations from CSA B415.1:22<\/p><\/td><\/tr>

BTU Maximum<\/strong><\/td>

50,000 BTU\/h<\/p>

Based on engineering calculations using firebox volume, efficiency, loading density (12lb\/cu ft for hardwood), average humidity, reloading interval, type of installation, etc.<\/p><\/td><\/tr>

Heating Capacity<\/strong><\/td>

800 to 1,500 ft2<\/p>

Depends primarily on wood quality, ambient air temperature and building heat loss.<\/p><\/td><\/tr>

Optimal Efficiency<\/strong><\/td>

75.3%<\/p>

Low Heating Value (LHV) using CSA B415.1:22 calculations.<\/p><\/td><\/tr>

EPA Average Efficiency<\/strong><\/td>

70%<\/p>

High Heating Value (HHV) using CSA B415.1:22 calculations.<\/p><\/td><\/tr>

EPA Average CO<\/strong><\/td>

1.3 g\/min<\/p>

Carbon Monoxide (CO), using data from EPA crib wood testing<\/p><\/td><\/tr><\/tbody><\/table><\/div><\/div>

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