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RSF Focus 3600Bi Wood Fireplace Insert
Introducing a new chapter for the RSF brand. The Focus 3600Bi is the very first fireplace insert developed by RSF. Its quality construction, low emissions, and high efficiency embody over 30 years of quality fireplace construction and experience.
Certified at just 1.7 g/hr with 75.3% optimal efficiency, the Focus 3600Bi delivers clean, powerful heat for homes up to 1,500 sq ft — all in a clean, modern package that’s easy to install.
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Key Features
- Clean, modern styling
- Easy to install
- EPA 2020 certified at 1.7 g/hr
- Detachable flue collar with pull handle
- Optional heat-activated internal blower
- Optional oversized backing plate (42″ × 30″)
Available Options
- Backing Plate — 42″ × 30 5/8″, for openings larger than the standard trim
- Deep Backing Plate — 42″ × 30 5/8″ with 1 1/2″ depth, for larger spaces
- Internal Blower Kit — Increases air circulation; plugs into a standard outlet, no electrician required
General Specifications
| Outside Dimensions | 31 3/4″ W × 24 5/16″ H × 21″ D |
| Firebox Volume | 2.04 cu ft (1.6 cu ft per certification testing) |
| Shipping Weight | 340 lbs |
| Glass Viewing Size | 241 in² (20 1/2″ W × 11 3/4″ H) |
| Firewood Length | Up to 18″ logs |
| Chimney | 6″ ExceLiner |
| Door Finish | Black |
Performance
| EPA Certification | 1.7 g/h (CSA B415.1.22) |
| BTU Output | 19,077 BTU/h |
| BTU Maximum | 50,000 BTU/h |
| Heating Capacity | 800 – 1,500 sq ft |
| Optimal Efficiency | 75.3% LHV (CSA B415.1:22) |
| EPA Average Efficiency | 70% HHV (CSA B415.1:22) |
| EPA Average CO | 1.3 g/min |