Introducing a new chapter for the RSF brand. The Focus 3600i 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.
- Clean, modern styling
- Easy to install
- Certified to NSPS 2020 at 1.49 g/hr
- Detachable flue collar with pull handle
- Optional heat activated internal blower
- Optional oversized backing plate (42” x 30”)
Technical Details
2.1 cu ft
Based on overall firebox dimensions, EPA firebox volume per certification testing is 1.6 cubic feet.
20 ½” W x 11 ¾” H
44,135 BTU/h
Based on EPA certification testing using cordwood and calculations from CSA B415.1-10
50,000 BTU/h
Based on engineering calculations using firebox volume, efficiency, loading density (12lb/cu ft for hardwood), average humidity, reloading interval, type of installation, etc.
800 to 1,500 ft2
Depends primarily on wood quality, ambient air temperature and building heat loss.
79%
Low Heating Value (LHV) using CSA B415.1-10 calculations.
74%
High Heating Value (HHV) using CSA B415.1-10 calculations.
1.29 g/min
Carbon Monoxide (CO), using data from EPA crib wood testing
Product Request Quote Form
2.1 cu ft
Based on overall firebox dimensions, EPA firebox volume per certification testing is 1.6 cubic feet.
20 ½” W x 11 ¾” H
44,135 BTU/h
Based on EPA certification testing using cordwood and calculations from CSA B415.1-10
50,000 BTU/h
Based on engineering calculations using firebox volume, efficiency, loading density (12lb/cu ft for hardwood), average humidity, reloading interval, type of installation, etc.
800 to 1,500 ft2
Depends primarily on wood quality, ambient air temperature and building heat loss.
79%
Low Heating Value (LHV) using CSA B415.1-10 calculations.
74%
High Heating Value (HHV) using CSA B415.1-10 calculations.
1.29 g/min
Carbon Monoxide (CO), using data from EPA crib wood testing
Additional information
| Brand | RSF |
|---|---|
| Product Type | Insert |
| Fuel Type | Wood |
| Design Style | Contemporary |








