Lenoxx Electronics Optima 3 FS Masonry and Factory Built Fireplaces, Top View, Side View

PLANNING YOUR INSTALLATION

MASONRY AND FACTORY BUILT FIREPLACES

The model Optima 3 INS is approved for installation into a solid fuel burning fireplace, either a masonry fireplace (built to UBC 37 or ULC S628 standards) or an approved factory-built / zero clearance fireplace (built to UL 127 or ULC S610 standards). See pages 20 and 21 for additional information on venting.

Minimum Fireplace Firebox Size
Height		20 1/8” / 512 mm
Width @ Front		32” / 814 mm
(extends back 1 ½”)
Width @ back		24 5/8” / 626mm
Depth		17 ¾” / 452 mm
Clean-out	24 5/8"
Tee
		17 3/4"
		Recommended			clear-
		ance	zone	from the
		front	of the	appliance
		to combustibles			is 4
		feet minimum.

32"

CAUTION: The fireplace in which the Optima 3 INS is to be installed must be thoroughly cleaned if it has been used to burn wood or synthetic logs. Have the chimney and all inside sur- faces of the fireplace brushed and vacuumed so that no soot, embers, or loose combustion deposits can be drawn into the heat circulation blower and blown into the living area. If any por- tion of the chimney system shows signs of structural or me- chanical weaknesses, such as: cracks, leaky joints, corroded or warped surfaces, the faulty portion must be repaired or replaced prior to installing this appliance.

IMPORTANT: When installing the Optima 3 INS into a factory built fireplace or heatform, the air flow within and around the fire- place shall not be altered by the installation of the insert (i.e. DO NOT BLOCK louvers or cooling air inlet or outlet ports, circulating air chambers in a steel fireplace liner or metal heat circulator). The factory built firebox must accept the insert without modification other than removing bolted or screwed together pieces such as smoke shelf / deflectors, ash lips, screen or door tracks and damper assemblies. Any fireplace component, which is removed, must be retained so they can be reinstalled to restore the fireplace to its original operating condition. The removal of any part must not alter the integrity of the outer shell of the pre-engineered fire- place cabinet in any way. A Warning Label (provided with appli- ance) must be installed in the fireplace firebox so that it shall be visible upon removal of the fireplace insert (see Fireplace Warning Label, below). Use RTV high Temperature Silicone as an adhe- sive to affix the warning label.

Fireplace Warning Label

(provided in accessory package)

THIS FIREPLACE HAS BEEN ALTERED TO ACCOMMO- DATE A FIREPLACE INSERT AND SHOULD BE IN- SPECTED BY A QUALIFIED PERSON PRIOR TO RE- USE AS A CONVENTIONAL FIREPLACE.

PAGE 8

HEARTH / FLOOR PROTECTION - Optima 3 INS The area directly in front of the Optima 3 INS must be protected by a noncombustible material or a fireplace hearth or hearth extension as fol- lows:

Combustible flooring must be protected by non-combustible material in Canada and 10 millimeter (3 / 8 inches) millboard or equivalent non-combustible in U.S. extending beneath the heater and to the front as indicated or to the nearest permitted combustible material. See page 6 for requirements when using alternate material as hearth extension.

The protected area must extend 6” to the front of the face of the Optima 3 INS.

MINIMUM CLEARANCES TO COMBUSTIBLES

	inches / millimeters
A - Insert to side wall	6”	/ 153 mm
B - Insert to side trim	1”	/ 26 mm
C - Hearth extension	6”	/ 153 mm
D - Insert to mantel	18”	/ 458 mm
E - Insert to top trim	1”	/ 26 mm
	Top View
Side Wall		Trim

Side View

Trim

Mantel

D

E