Lennox Hearth L20 BF-2 manual Installation, Direct Vent System Components Model L20 DVF-2 only

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INSTALLATION

DIRECT VENT SYSTEM COMPONENTS – MODEL L20 DVF-2 ONLY

The following Direct-Vent system components may be safely used model L20 DVF-2.

Model #

Brand: SECURITY / Description

Model #

Brand: SIMPSON DURA-VENT / Description

 

 

 

 

SV 0 SHK

Standard Horizontal Term. Kit (90° Black Elbow, Firestop (2), Horizon-

970

Basic Horizontal Term. Kit (90° Black Elbow, Wall Thimble Cover,

 

tal Square Term. Cap)

 

Horizontal Square Term. Cap)

SV 0 HK

Horizontal Term. Kit (90° Black Elbow, Firestop (2), Horizontal Term.

971

Horizontal Term. Kit A (90° Black Elbow, Wall Thimble Cover, Hori-

 

Cap, adj. Black length 1-1/2 – 6”)

 

zontal Square Term. Cap, adj. 24” black pipe, 11-14 5/8” adj. Black

 

 

 

pipe)

SV 0 FK

Vertical Flat Roof Term. Kit (w/flashing, storm collar, vertical Term.

973

Vertical Termination Kit

 

Cap)

 

 

SV 0 FAK

Vertical pitched Roof Kit, 1/12-7/12 (with adjustable roof flashing,

978

Vertical Pitched Roof Kit, 0/12–6/12 (with adjustable flashing, storm

 

storm collar, vertical termination cap)

 

collar, low profile term. Cap)

SV 0 FBK

Vertical pitched Roof Kit, 8/12-12/12 (with adjustable roof flashing,

N/A

N/A

 

storm collar, vertical termination cap)

 

 

SV 0 L6

6” Pipe Length (Galvalume)

 

6” Pipe Length (Galvalume)

SV0 LB6

6” Pipe Length (Black)

908B

6” Pipe Length (Black)

SV 0

9” Pipe Length ( Black)

907B

9” Pipe Length ( Black)

SV 0 L12

12” Pipe Length (Galvalume)

906

12” Pipe Length (Galvanized)

SL 0 LB12

12” Pipe Length (Black)

906B

12” Pipe Length (Black)

SV 0 L24

24” Pipe Length (Galvalume)

904

24” Pipe Length (Galvanized)

SV 0 LB24

24” Pipe Length (Black)

904B

24” Pipe Length (Black)

SV 0 L36

36” Pipe Length (Galvalume)

903

36” Pipe Length (Galvanized)

SV 0 LB36

36” Pipe Length (Black)

903B

36” Pipe Length (Black)

SV 0 L48

48” Pipe Length (Galvalume)

902

48” Pipe Length (Galvanized)

SV 0 LB48

48” Pipe Length (Black)

902B

48” Pipe Length (Black)

N/A

N/A

911B

11”-14” Adj. Pipe Length (Black)

SV 0 LA

1 ½- 6” Adj. Pipe Length

N/A

N/A

SV 0 LBA

1 ½- 6” Adj. Black Pipe Length

N/A

N/A

SV 0 E45

45 Elbow (Galvalume)

945

45 Elbow (Galvanized)

SV 0 EB45

45 Elbow (Black)

945B

45 Elbow (Black)

SV 0 E90

90 Elbow (Galvalume Swivel)

990G

90 Elbow (Galvanized Swivel)

SV 0 EB90

90 Elbow (Black Swivel)

990BG

90 Elbow (Black Swivel)

SV 0

90 Elbow (Galvalume)

990

90 Elbow (Galvanized)

SV 0

90 Elbow (Black)

990B

90 Elbow (Black)

SV 0 CHC

⊕Horizontal Standard Term. Cap

984

⊕Horizontal Standard Term. Cap

SV 0 CHCV

⊕Horizontal High Wind Term. Cap

N/a

⊕Horizontal High Wind Term. Cap

SV 0 CPB

• Vertical Termination Cap

983

• Vertical Termination Cap

SV 0 CGV

• Vertical High Wind Cap

991

• Vertical High Wind Cap

SV 0 STC36

⊗Snorkel Termination Cap 36”

981

⊗Snorkel Termination Cap 36”

SV 0 STC14

⊗Snorkel Termination Cap 14”

982

⊗Snorkel Termination Cap 14”

SV 0

Vinyl Shield Protector

950

Vinyl Siding Standoff

SV 0 VS

Round Ceiling Support

940

Round Ceiling Support

 

/WallThimble Cover

 

/WallThimble Cover

SV 0 CSB

Cathedral Ceiling Support Box, decorative square

941

Cathedral Ceiling Support Box

SV 0 SF

Black Plate,Decorative

N/A

N/A

SV 0

Round Ceiling Support Box/Wall

942

Round Ceiling Support Box/Wall

 

Thimble

 

Thimble

SV 0

Storm Collar

953

Storm Collar

SV 0 RSM

Wall Radiation Shield

N/A

N/A

SV 0 BF

Firestop

N/A

N/A

N/A

N/A

963

Firestop Spacer

SV 0 F

Flashing, Flat Roof (storm collar included)

 

 

SV 0 FA

Flashing, Adjustable roof 1/12-7/12 (storm collar included)

943

Flashing 0/12-6/12

SV 0 FB

Flashing, Adjustable 8/12-12/12 (storm collar included)

943S

Flashing 7/12-12/12

SV 0 BM

Wall Band

988

Wall Strap

 

 

 

 

⊗Snorkel Caps: These are elongate vent termination caps, which incorporate the principles of natural draft into a horizontal installation. Two styles are common, 14” and 36” (Cap height). They enhance draft and relieve backpressure by creating natural draft in the snorkel.

⊕Horizontal Caps: This 13 ½” square horizontal cap is placed on the outer wall of the dwelling. Not to be within 9” of an air inlet or within 12” of the

ground. It requires a minimum 2’ rise on the interior pipe.

•Vertical Termination Cap: Low profile and high wind caps can only be used on vertical pipe installations.

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Contents 775,021M Rev. C, 8/04 Freestanding Vented GAS Fired Room HeatersRetain this Manual for Future Reference Important Warnings / Cautions Table of Contents Planning Your Installation Local and National Code RequirementsTool / Equipment List LOW HighQuestions to ASK the Local Building Official Manufactured Mobile Home Requirements Important NotesRear Wall or Alcove CornerHorizontal Termination With 1 Offset Vertical Termination with no OffsetsVertical Termination With 2 Offsets Installation Direct Vent System Components Model L20 DVF-2 onlyInstallation Model L20 DVF-2 only SV4MCKCony For vent termination requirements, see Vent Configuration RequirementsModel L20 BF-2 only Supply Line Size Requirements Pressure TestingGAS Supply Hookup ALL Models Door Operation ALL Models Glowing Embers GAS Appliance Final Assembly ALL ModelsInstalling LOG SET Installation Check List ALL Models Verify that the gas line has been purged of airALL Models For Your Safety Read Before Lighting Care and OperationGas Control Knobs Lighting and Shutdown InstructionsCirculation Blower Operation ALL Models BREAK-IN PeriodCombustion Chamber Relief Door Parts List Propane Conversion ProcedurePropane Conversion CanadaReference Information Burner Flame AppearanceMaintenance Air Shutter Adjustment ALL Models Periodic Check of Pilot and Burner FlamesCycle unit a minimum of 2 times Pilot Flame AppearanceModel L20 BF-2 Model L20 DVF-2 Wiring DiagramsGAS Control and Safety System Wiring Diagram Troubleshooting Qualified Technicians Only ALL ModelsSpillage Test Procedure Model L20 BF-2 only Spill SwitchTroubleshooting Check List Qualified Technicians Only Replacement Parts Models L20BF-2 & L20 DVF-2 Item # Catalog # Description Where UsedOptional Accessories Models L20BF-2 & L20 DVF-2 Item # Catalog # Model DescriptionSpecifications Model L20 BF-2 Top View Side ViewSpecifications Model L20 DVF-2 SAFETY/ Listing Label Rating Plate SAFETY/ Listing Label Rating Plate Service and Maintenance LOG Ownership Records775,021M REV. C 08/2004

L20 DVF-2, L20 BF-2 specifications

The Lennox Hearth L20 DVF-2 and L20 BF-2 are two innovative gas fireplaces that offer modern heating solutions for homes looking to combine functionality, style, and efficiency. Both models are designed with advanced technology to deliver reliable performance and aesthetics that enhance any living space.

The L20 DVF-2 is a direct vent fireplace that utilizes a sealed combustion system, allowing it to operate efficiently without drawing air from the room. This feature not only improves energy efficiency but also helps maintain indoor air quality since outside air is used for combustion. One of its standout features is the ability to provide a range of heat output options, allowing homeowners to adjust the warmth to their preference. The fireplace comes with a convenient remote control, enabling effortless operation from anywhere in the room.

The L20 BF-2, on the other hand, is a conventional vent fireplace, offering a different installation option ideal for various home designs. Similar to the DVF-2, the BF-2 model provides a wide range of heat output, ensuring comfort in chilly conditions. It features a striking design with a large viewing area, allowing for a mesmerizing flame display that serves as a focal point in any room.

Both models are equipped with Lennox's patented Powerflow technology, which optimizes heat distribution throughout the space. This technology not only enhances comfort but also ensures that energy is used efficiently. The fireplaces also feature easy-to-use controls and customizable flame height settings, giving users precise control over their heating experience.

In terms of design, the L20 DVF-2 and L20 BF-2 come in various finishes and styles, allowing them to seamlessly blend with different home aesthetics. Their sleek and contemporary appearance complements modern interiors, while still fitting into more traditional décor in subtle ways.

Overall, the Lennox Hearth L20 DVF-2 and L20 BF-2 provide effective heating solutions paired with advanced technologies and stylish designs. Whether a homeowner desires a direct vent option or a traditional vent fireplace, both models deliver energy-efficient performance, exceptional heat distribution, and a stunning flame display that can enhance the ambiance of any living space. These fireplaces are not just heating appliances; they are an investment into comfort and elegance for years to come.
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