Masonry and Factory Built Fireplaces

PLANNING YOUR INSTALLATION

The model Advantage II-T C INS is approved for installa- tion 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 19 through 20 for additional information on venting).

Dimensions Into a Fireplace

Height	20 1/4” / 515 mm
Width	30 1/4” / 768 mm
Depth w/Tee	18 3/8” / 467 mm

Depth–DV thru Masonry Wall 12 1/2” / 318 mm

Recommended clearance zone from the front of the ap- pliance to combustibles is 4 feet minimum.

CAUTION: The fireplace in which the Advantage II-T C 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 surfaces of the fireplace brushed and vacuumed so that no soot, embers, or loose com- bustion deposits can be drawn into the heat circulation blower and blown into the living area. If any portion of the chimney system shows signs of structural or me- chanical weaknesses, such as: cracks, leaky joints, cor- roded or warped surfaces, the faulty portion must be repaired or replaced prior to installing this appliance.

IMPORTANT: When installing model Advantage II-T C INS into a factory built fireplace or heatform, the air flow within and around the fireplace 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 rein- stalled to restore the fireplace to its original operating con- dition. The removal of any part must not alter the integrity of the outer shell of the pre-engineered fireplace cabinet in any way. A Warning Label (provided with appliance) 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 Sili- cone as an adhesive to affix the warning label.

Fireplace Warning Label

Provided in accessory package (insert only)

THIS FIREPLACE HAS BEEN ALTERED TO AC- COMMODATE A FIREPLACE INSERT AND SHOULD BE INSPECTED BY A QUALIFIED PERSON PRIOR TO RE-USE AS A CONVENTIONAL FIREPLACE.

HEARTH / FLOOR PROTECTION - Advantage II-T C INS

In the USA and Canada, the area below and directly in front of the Advantage II-T C INS must be an approved fireplace hearth or protected by a non-combustible hearth / floor protector with a minimum thickness of 3/8” which has a thermal conductivity of k (per inch) = .84 or lower value (better thermal protection) or resistance of r (per inch) = 1.19 or higher value. See Floor Protection / Hearth Extension Using Alternate Material as Floor Pro- tector on page 5 which explains minimum thermal pro- tection requirements.

The protected area must extend 6” to the front of the face of the Advantage II-T C INS.

MINIMUM CLEARANCES TO COMBUSTIBLES Masonry and Factory Built Fireplaces

	inches / millimeters
A - Insert to side wall	6 “ / 150 mm
B - Insert to side trim	1” / 25 mm
C - Hearth extension	6” / 150 mm
D - Insert to mantel	18” / 457 mm
E - Insert to top trim	1” / 25 mm
	Front View

D E

Side View

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II-T C FS, II-T C INS specifications

The Lennox Hearth II-T C INS and II-T C FS are exemplary models in the world of modern heating solutions, designed for efficiency, comfort, and style. With innovative engineering and advanced technology, these units cater to the needs of contemporary homeowners seeking reliable and aesthetically pleasing heating options.

One of the main features of the Lennox Hearth II-T C INS and II-T C FS is their exceptional efficiency ratings. These models are designed to operate at high efficiency levels, reducing energy consumption while providing optimal warmth. This not only translates to lower utility bills but also represents a more sustainable choice for environmentally conscious consumers.

A standout characteristic of these products is their versatility in installation. The II-T C INS is an insert model, allowing it to be fitted into existing fireplaces easily. This makes it an ideal option for homeowners wanting to upgrade their current heating systems without extensive renovations. The II-T C FS, on the other hand, is a freestanding stove that adds a classic touch to any room, making it a perfect focal point while offering powerful heating capabilities.

Both models are equipped with advanced technology designed for seamless operation. The hot air circulation system ensures that warmth is evenly distributed throughout the space, eliminating cold spots and enhancing overall comfort. In addition, their adjustable thermostats allow users to set the desired temperature with ease, ensuring a consistent indoor environment.

The Lennox Hearth units are also designed with user convenience in mind. They come with easy-to-use controls and can often be integrated with smart home systems, offering the flexibility to monitor and adjust settings remotely. This modern approach to home heating makes it simple for users to maintain a cozy atmosphere, even on the coldest days.

Moreover, Lennox places a strong emphasis on safety. These heating models include features such as a glass door that remains cool to the touch and a built-in safety shut-off system, providing peace of mind for families.

In summary, the Lennox Hearth II-T C INS and II-T C FS models stand out for their efficiency, versatility, advanced technology, and safety features. With a focus on optimal performance and user convenience, these units represent a significant advancement in home heating, making them an attractive choice for those looking to enhance their living spaces while staying warm and comfortable.