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PLANNING YOUR INSTALLATION
Clearances to combustibles are determined from testing to applicable standards for allow-
able heat transfer. The clearances allowed as shown here, do not take into account opera-
tion or serviceability requirements.
PAGE 7
CLEARANCES
Optima
2 FS and Optima 3 FS - Standard residential or
manufactured (mobile) home installation. These appli-
ances require the following minimum clearances to com-
bustibles:
MINIMUM CLEARANCES TO COMBUSTIBLES
Manufactured (Mobile) Home
or Residential Installation
Horizontal Flue – Di-
rectly Through Wall
Interior Vertical Flue
Optima 2 FS
Clearance to
Combustibles
inch / millimeter inch / millimeter
A - Sidewall to unit ♦4” / 102 mm ♦4” / 102 mm
B – Backwall to unit *2” / 51 mm 9” / 229 mm
C – Sidewall to unit
Corner
*2” / 51 mm *2” / 51 mm
D – Max. Depth of
Alcove
•24” / 610 mm •24” / 610 mm
E – Flue to Wall 3” / 77 mm 3” / 77 mm
♦ Measured to fuel hopper lid in alcove.
• Minimum Alcove Measurements - Height 48” / 1220 mm
Width 31” / 788 mm
Manufactured (Mobile) Home
or Residential Installation
Horizontal Flue – Di-
rectly Through Wall
Interior Vertical Flue
Optima
3 FS
▪ Clearance to
Combustibles
inch / millimeter inch / millimeter
A - Sidewall to unit ♦6” / 153 mm ♦6” / 153 mm
B – Backwall to unit *2” / 51 mm 9” / 229 mm
C – Sidewall to unit
Corner
*2” / 51 mm *2” / 51 mm
D – Max. Depth of
Alcove
•16” / 407 mm •16” / 407 mm
E – Flue to Wall 3” / 77 mm 3” / 77 mm
♦ Measured to fuel hopper in alcove.
• Minimum alcove measurements - Height 48” / 1220 mm
Width 38” / 966 mm
Minimum clearances specified may not allow for
ease of operation and maintenance (please take
this in to account when planning the installation).
If installed to the minimum clearances, removal of
the appliance may be necessary for servicing.
Recommended clearance zone from the front of
the appliance to combustibles is 4 feet minimum.
* The certified back wall clearance as shown on the
listing label is 1" (see Safety / Listing Label) but for
proper hopper lid operation in corner and parallel
installations a 2" clearance is required.
Rear Wall or Alcove – Optima
2 FS and Optima 3 FS
Corner - Optima 2 FS
Corner - Optima 3 FS
*
*
*
*
*