Heat & Glo HST-48D Install Manual

Marque: Heat & Glo

Modèle: HST-48D

Catégorie: Cheminées

Taper: Install Manual

Heat & Glo • HST-48D • 35039 Rev R • 10/06 1

Owner’s Manual

Installation and Operation

Model:

HST-48D

See-Through

Woodburning Fireplace

DO NOT DISCARD THIS MANUAL

CAUTION

• Important operating

and maintenance

instructions included.

• Leave this manual with

party responsible for

use and operation.

• Read, understand

and follow these

instructions for safe

installation and

operation.

DO NOT

DISCARD

Installation and service of this ¿ replace should

be performed by quali¿ ed personnel. Hearth

& Home Technologies suggests NFI certi¿ ed

or factory-trained professionals, or technicians

supervised by an NFI certified

professional.

HOT! DO NOT TOUCH.

SEVERE BURNS MAY RESULT.

CLOTHING IGNITION MAY RESULT.

WARNING

• Keep children away.

• CAREFULLY SUPERVISE children in same room

as ¿ replace.

• Alert children and adults to hazards of high

temperatures.

• Keep clothing, furniture, draperies and other

combustibles away.

Glass and other surfaces are hot

during operation and cool down.

If the information in these instruc-

tions is not followed exactly, a

¿ re may result causing property

damage, personal injury, or death.

• Do not store or use gasoline or other À am-

mable vapors and liquids in the vicinity of

this or any other appliance.

• Do not over¿ re. Over¿ ring will void your

warranty.

• Comply with all minimum clearances to

combustibles as speci¿ ed. Failure to

comply may cause house ¿ re.

WARNING

Fire Risk

• For use with solid wood fuel or decorative

gas appliance only.

• Do not install unvented gas logs.

WARNING

Heat & Glo • HST-48D • 35039 Rev R • 10/06

Read this manual before installing or operating this ¿ replace.

Please retain this owner’s manual for future reference.

Congratulations on selecting a Heat & Glo wood burning ¿ re-

place. The Heat & Glo ¿ replace you have selected is designed

to provide the utmost in safety, reliability and ef¿ ciency.

As the owner of a new ¿ replace, you’ll want to read and care-

fully follow all of the instructions contained in this owner’s

manual. Pay special attention to all cautions and warnings.

This owner’s manual should be retained for future reference.

We suggest you keep it with your other important documents

and product manuals.

The information contained in this owner’s manual unless noted

otherwise, applies to all models and gas control systems.

Your new Heat & Glo wood burning ¿ replace will give you

years of durable use and trouble-free enjoyment. Welcome

to the Heat & Glo family of ¿ replace products!

Homeowner Reference Information

Model Name: Date purchased/installed:

Serial Number: Location on ¿ replace:

Dealership purchased from: Dealer phone:

Notes:

We recommend that you record the following pertinent

information about your ¿ replace:

Listing Label Information/Location

The model information regarding your speci¿ c ¿ replace can be found on the rating plate located on the smoke shield of the

¿ replace.

Congratulations!

FIREPLACE NO.

MODEL NO.

MFG. DATE

WARNING: RISK OF

FIRE DAMAGE. REPLACE

GRATE WITH HEARTH & HOME

TECHNOLOGIES INC.

FIRECHAMBER INTENDED FOR USE WITH HEARTH & HOME TECHNOLOGIES INC. LISTED FIREPLACE PARTS. SEE INSTALLATION AND

OPERATING INSTRUCTIONS FOR THIS MODEL. ONLY HEARTH & HOME TECHNOLOGIES INC. GLASS DOOR KITS CAN BE INSTALLED ON THIS UNIT.

FIREPLACE ALSO FOR USE

IN MANUFACTURED HOMES

YES NO

CLEARANCE TO

COMBUSTIBLES:

CHIMNEY

2 IN. MIN.

FIREBOX

IN.

MIN.

FAN KIT

MODEL NO.

&RATED AT

115 VOLTS, 50/60 Hz., AMP.

DO NOT OVERFIRE. USE ONLY: SOLID WOOD FUEL OR

LISTED DECORATIVE GAS APPLIANCE. DO NOT USE A

FIREPLACE INSERT OR OTHER PRODUCTS NOT

SPECIFIED FOR USE WITH THIS PRODUCT. IF DOORS

ARE USED OPERATE FIREPLACE WITH DOORS FULLY

OPEN OR CLOSED ONLY. WHEN BURNING A

DECORATIVE GAS APPLIANCE IN THE FIREPLACE,

ADJUST DAMPER TO THE FULLY OPEN POSITION.

WARNING! THIS FIREPLACE HAS NOT BEEN TESTED WITH AN UNVENTED

GAS LOG SET. TO REDUCE THE RISK OF FIRE OR INJURY, DO NOT

INSTALL AN UNVENTED GAS LOG SET INTO FIREPLACE.

WARNING! THIS APPLIANCE IS NOT FOR USE AS COOKING EQUIPMENT.

IF INSTALLATION OR OPERATING INSTRUCTIONS ARE MISSING

CONTACT: HEARTH & HOME TECHNOLOGIES INC.,

1915 W. SAUNDERS ST., MT. PLEASANT, IA 52641.

Grate Fireplace

Model

Serial

Number

Heat & Glo • HST-48D • 35039 Rev R • 10/06 3

Table of Contents

1 Listing and Code Approvals

A. Appliance Certi¿ cation . . . . . . . . . . . . . . . . . . . . . . . . .4

2 Getting Started

A. Design and Installation Considerations . . . . . . . . . . . .5

B. Negative Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

C. Typical Fireplace System. . . . . . . . . . . . . . . . . . . . . . .7

D. Tools and Supplies Needed . . . . . . . . . . . . . . . . . . . . .8

E. Inspect Fireplace and Components . . . . . . . . . . . . . . .8

3 Framing and Clearances

A. Selecting Fireplace Location . . . . . . . . . . . . . . . . . . . .9

B. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

C. Sidewalls/Surrounds . . . . . . . . . . . . . . . . . . . . . . . . . 11

D. Frame the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . . 11

E. Construct the Chase . . . . . . . . . . . . . . . . . . . . . . . . .12

F. Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . .12

4 Installation of Fireplace

A. Install the Outside Air Kit . . . . . . . . . . . . . . . . . . . . . .13

B. Secure the Fireplace . . . . . . . . . . . . . . . . . . . . . . . . .15

5 Chimney Assembly

A. Chimney Requirements . . . . . . . . . . . . . . . . . . . . . . .17

B. Using Offsets/Returns . . . . . . . . . . . . . . . . . . . . . . . .18

C. Assemble the Chimney Sections . . . . . . . . . . . . . . . .19

D. Install the Ceiling ¿ restops. . . . . . . . . . . . . . . . . . . . .19

E. Install the Attic Insulation Shield . . . . . . . . . . . . . . . .20

F. Double-check the Chimney Assembly . . . . . . . . . . . .20

G. Secure the Chimney . . . . . . . . . . . . . . . . . . . . . . . . .20

6 Complete the Enclosure

A. Chimney Termination . . . . . . . . . . . . . . . . . . . . . . . . .21

C. Install the Termination Cap . . . . . . . . . . . . . . . . . . . .22

B. Chase Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

7 Accessories

A. Gas Log/Lighter Provisions . . . . . . . . . . . . . . . . . . . .24

8 Finishing

A. Hearth Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

B. Finishing Material . . . . . . . . . . . . . . . . . . . . . . . . . . .26

C. Mantel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

D. Sidewalls/Surrounds . . . . . . . . . . . . . . . . . . . . . . . . .26

9 Operating Instructions

A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . .27

B. Outside Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

C. Clear Space Near the Fireplace . . . . . . . . . . . . . . . .28

D. Flue Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

E. Firescreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

F. Glass Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

G. Grate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

H. Wood Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

I. Starting a Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

10 Troubleshooting

A. Understanding Vent Problems . . . . . . . . . . . . . . . . . .31

B. Diagnostics and Problem Solving . . . . . . . . . . . . . . .32

11 Maintenance and Servicing the Fireplace

A. Disposal of Ashes . . . . . . . . . . . . . . . . . . . . . . . . . . .34

B. Chimney Inspection/Cleaning . . . . . . . . . . . . . . . . . .34

C. Firebox Refractory . . . . . . . . . . . . . . . . . . . . . . . . . . .34

D. Maintenance Task List . . . . . . . . . . . . . . . . . . . . . . . .35

E. Chimney Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

12 Reference Materials

A. Fireplace Dimensions . . . . . . . . . . . . . . . . . . . . . . . .36

B. Fireplace Components . . . . . . . . . . . . . . . . . . . . . . .37

C. Chimney Components . . . . . . . . . . . . . . . . . . . . . . . .38

D. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

E. Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

F. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . .48

Note: An arrow (¨) found in the text signi¿ es change in content.

Heat & Glo • HST-48D • 35039 Rev R • 10/06

1 Listing and Code Approvals

A. Appliance Certi¿ cation

This ¿ replace system has been tested and listed in accor-

dance with UL 127 standards by Underwriters Laboratories

Inc. for installation and operation in the United States and

Canada.

This ¿ replace has been tested and listed for use with the op-

tional components speci¿ ed in this manual. These optional

components may be purchased separately and installed at

a later date. Installation of an outside air kit will require sig-

ni¿ cant reconstruction and is best if installed at the time of

¿ replace installation.

Heat & Glo is a registered trademark of Hearth & Home

Technologies Inc.

Not intended for use as a primary heat source.

This ¿ replace is tested and approved as a decorative ¿ re-

place. It should not be factored as a primary heat source

in residential heating calculations.

Improper installation, adjustment, alteration, service

or maintenance can cause injury or property damage.

Refer to the owner’s information manual provided with

this ¿ replace. For assistance or additional information

consult a quali¿ ed installer, service agency or your

dealer.

WARNING

Fire Risk

• Do not install or operate damaged ¿ replace.

• Do not modify ¿ replace.

• Installation other than as instructed by Hearth & Home

Technologies Inc. is strictly prohibited.

• Do not operate the ¿ replace without fully assembling

all components.

• Do not over¿ re.

• Do not install an unvented gas log set. This ¿ replace

has not been tested for use with unvented gas log

sets.

• Installation and/or use of any component part not

approved by Hearth & Home Technologies.

Hearth & Home Technologies disclaims any responsibility

for, and the warranty and agency listing will be voided by

the above actions.

WARNING

Heat & Glo • HST-48D • 35039 Rev R • 10/06 5

2 Getting Started

A. Design and Installation Considerations

Draft is the pressure difference needed to vent ¿ replaces

successfully. Considerations for successful draft include:

• Preventing negative pressure

• Location of ¿ replace and chimney

B. Negative Pressure

Negative pressure results from the imbalance of air avail-

able for the ¿ replace to operate properly. Causes for this

imbalance include:

• Exhaust fans (kitchen, bath, etc.).

• Range hoods.

• Combustion air requirements for furnaces, water heaters

and other combustion appliances.

• Clothes dryers.

• Location of return-air vents to furnace or air

conditioning.

• Imbalances of the HVAC air handling system.

• Upper level air leaks: recessed lighting, attic hatch

opening, duct leaks.

To minimize the effects of negative air pressure, the follow-

ing must be considered:

• Install the outside air kit. Install the intake on the side of

the house towards prevailing winds during the heating

season.

• Ensure adequate outdoor air is supplied for combustion

appliances and exhaust equipment.

• Ensure furnace and air conditioning return vents are not

located in the immediate vicinity of the ¿ replace.

• Avoid installing the ¿ replace near doors, walkways or small

isolated spaces.

• Recessed lighting should be a “sealed can” design; attic

hatches weather stripped or sealed; attic mounted duct

work and air handler joints and seams taped or sealed.

• Basement installations should be avoided due to stack

effect. Stack effect creates negative pressure in lower

levels. Hearth & Home Technologies recommends the

use of direct vent ¿ replaces in basements.

Asphyxiation Risk

Negative pressure can cause spillage of

combustion fumes and soot. Fire needs to draft

properly for safe operation.

WARNING

Check building codes prior to installation.

• Installation MUST comply with local, regional,

state and national codes and regulations.

• Consult insurance carrier, local building inspector,

¿ re of¿ cials or authorities having jurisdiction about

restrictions, installation inspection and permits.

CAUTION

When planning a ¿ replace installation, it is necessary to de-

termine the following information before installing:

• Where the fireplace is to be installed. See Sections

3 and 4.

• The vent system con¿ guration to be used. See Sections

5 and 6.

• Gas supply piping. See Section 7.

• Framing and ¿ nishing details. See Sections 3 and 8.

• Whether optional accessories are desired. See

Section 12.

Heat & Glo • HST-48D • 35039 Rev R • 10/06

Location of the ¿ replace and chimney will affect performance.

As shown in Figure 2.1 the chimney should:

• Be installed through the warm airspace enclosed by the

building envelope. This helps to produce more draft,

especially during lighting and die-down of the ¿ re.

• Penetrate the highest part of the roof. This minimizes the

effects of wind turbulence.

• Be located away from trees, adjacent structures, uneven

roof lines and other obstructions.

Offsets can restrict draft so their use should be minimized.

Consider the ¿ replace location relative to À oor and ceiling

and attic joists.

Recommended

Location

Marginal

Location

Not

Recommended

Location

Multi-level Roofs

Windward

Leeward

Outside Air Intake

Location

Not

Recommended

Figure 2.1 Recommended Chimney Locations

Heat & Glo • HST-48D • 35039 Rev R • 10/06 7

C. Typical Fireplace System

The Heat & Glo ¿ replace system consists of the following:

• Fireplace/integral grate/refractory/outside air system

• Chimney termination cap

• Chimney system

• Hearth extension

Termination cap

Chimney penetrates roof

preferably without affecting

roof rafters

Offset/Return (with hanger straps)

Framing headed off

in ceiling joists

Enclosed space above

and around fireplace

Mantel and surround

Decorative facing

and trim

Hearth extension

Factory-built fireplace

Protective metal

hearth strip(s)

Outside

combustion air

Combustible

framing/header

on top of

V-shaped

standoffs

(spacers)

Chimney system

Ceiling firestop

on floor of attic

Support straps

on rafter supports

chimney (not shown)

Non-combustible

roof flashing maintains

minimum clearance

around chimney

Additional lateral

support for chimney

above roof (or enclosed

in chase) if needed

Attic insulation shield (not shown) must

be used here to keep insulation away

from chimney if attic is insulated

Storm Collar

Figure 2.2 Typical Fireplace System

Optional components include:

• Glass doors

• Chimney air kit

Heat & Glo • HST-48D • 35039 Rev R • 10/06

Before beginning the installation be sure the following tools

and building supplies are available:

Reciprocating saw Framing material

Pliers High temp caulking material

Hammer Gloves

Phillips screwdriver Framing square

Flat blade screwdriver Electric drill and bits

Plumb line Safety glasses

Level Tape measure

1/2-3/4 in. length, #6 or #8 self-drilling screws

Misc. screws and nails

• Keep ¿ replace dry.

• Mold or rust may cause odors.

CAUTION

E. Inspect Fireplace and Components

• Carefully remove the ¿ replace and components from the

packaging.

• The vent system components and doors are shipped in

separate packages.

• Report to your dealer any parts damaged in shipment.

• Read all the instructions before starting the installation.

Follow these instructions carefully during the

installation to ensure maximum safety and bene¿ t.

Fire Risk

Explosion Risk

Inspect fireplace and components for

damage. Damaged parts may impair safe

operation.

• Do NOT install damaged components.

• Do NOT install incomplete components.

• Do NOT install substitute components

Report damaged parts to dealer.

WARNING

D. Tools and Supplies Needed

Heat & Glo • HST-48D • 35039 Rev R • 10/06 9

3 Framing and Clearances

A. Selecting Fireplace Location

Several options are available to you when choosing a loca-

tion for your ¿ replace. This ¿ replace may be used as a room

divider, installed along a wall, across a corner or used in an

exterior chase. See Figure 3.1.

66 in.

(1676 mm)

42 in.

(1067 mm)

20 in. (508 mm) (hearth

extension)

64 in.

(1626 mm)

12 in. (305 mm)

min. to

perpendicular

wall.

Figure 3.1 Fireplace Locations

Fire Risk

Provide adequate clearances.

• Around air openings

• To combustibles

• For service access.

Locate ¿ replace away from traf¿ c areas.

WARNING Note:

• Illustrations and photos reÀ ect typical installations

and are FOR DESIGN PURPOSES ONLY.

• Illustrations/diagrams are not drawn to scale.

• Actual installation/appearance may vary due to

individual design preference.

• Hearth & Home Technologies reserves the right to

alter its products.

Locating the ¿ replace in a basement, near frequently opened

doors, central heat outlets or returns, or other locations of

considerable air movement can affect the performance and

cause intermittent smoke spillage from the front of the ¿ re-

place. Consideration should be given to these factors before

deciding on a location. See Sections 2 and 10.

Note: 1/2 in. (13 mm) min. dis-

tance from ¿ replace to

combustible materials.

Note: In addition to these fram-

ing dimensions, also

reference the following

sections:

• Clearances (Sec-

tion 3.B.)

• Mantel Projections

(Section 8.C.)

• Fireplace Dimensions

(Section 12.A.)

Heat & Glo • HST-48D • 35039 Rev R • 10/06

B. Clearances

2 in. (51 mm) min.

0 in. to level

of standoffs

Attic

Insulation

Shield

Ceiling Firestop

(ceiling)

(roof)

(attic)

(ceiling)

Ceiling Firestop Offset/Return with

hanger straps

Storm Collar

Roof Flashing

1/2 in. (13 mm) to side of appliance

2 in. (51 mm) min.

2 in. min.

(51 mm)

Must have 2 in. (51 mm)

minimum clearance

to header

0 in.

to floor

2 in. (51 mm) min.

2 in. (51 mm) min. 2 in. (51 mm) min.

2 in. (51 mm) min.

Figure 3.2 Clearances to Combustible Materials

Fire Risk

• Comply with all minimum clearances to combustibles as speci¿ ed.

• Framing or ¿ nishing material used on the front of, or in front of, the

appliance closer than the minimums listed, must be constructed entirely

of noncombustible materials (i.e., steel studs, concrete board, etc.).

Failure to comply may cause ¿ re.

WARNING

Heat & Glo • HST-48D • 35039 Rev R • 10/06 11

C. Sidewalls/Surrounds

Adjacent combustible side walls must be located a minimum of 12 in. (305 mm) from the ¿ replace opening. See Figure 3.3.

If you are using a decorative surround constructed of combustible material, it must be located within the shaded area de-

¿ ned in Figure 3.3. Short stub walls are also acceptable if they are contained within the shaded area.

D. Frame the Fireplace

Figure 3.4 shows a typical framing (using 2 x 4 lumber) of the ¿ replace, assuming combustible materials are used. All re-

quired clearances to combustibles around the ¿ replace must be adhered to. See Figure 3.2. Any framing across the top of

the ¿ replace must be above the level of the top standoffs.

50 deg. 37 deg.

Brick

Front

48 in.

(1219 mm)

(framing)

42 in.

(1067 mm)

(opening)

9-3/4 in.

(248 mm)

14-3/8 in.

(365 mm)

12 in.

(305 mm)

4 in.

(102 mm)

Flush

Front

12 in.

(305 mm)

Figure 3.3 Sidewalls and Surrounds

You must maintain

2 in. (51 mm) min. air space

clearance from the

chimney to the

enclosure.

27 in.

(686 mm)

Note: Fireplace

Header cannot be

positioned until after

the fireplace assembly

is in place.

12 in. (305 mm) max.

48 in.

(1219 mm)

Figure 3.4 Framing the Fireplace

Heat & Glo • HST-48D • 35039 Rev R • 10/06

E. Construct the Chase

A chase is a vertical boxlike structure built to enclose the ¿ re-

place and/or its vent system. Vertical chimneys that run on

the outside of a building must be installed inside a chase.

Construction of the chase may vary with the type of build-

ing. These instructions are not substitutes for the require-

ments of local building codes. Local building codes MUST

be checked.

Chases should be constructed in the manner of all outside

walls of the home to prevent cold air drafting problems. The

chase should not break the outside building envelope in any

manner. All outside walls need to be insulated.

Building codes require false ceiling and ceiling ¿ restops at

each À oor of the chase or every 10 ft (3.05 m) of clear space

to control spread of ¿ re.

Walls, ceiling, base plate and cantilever À oor at the ¿ rst level

of the chase should be insulated. See Figure 3.5. Vapor and

air in¿ ltration barriers should be installed in the chase as per

regional codes for the rest of the home. Additionally, Hearth

& Home Technologies recommends that the inside surfac-

es be sheet rocked and taped (or the use of an equivalent

method) for maximum air tightness.

Attic

Insulation

Shield

Chimney

Ceiling

Firestop

Tabs

False Ceiling

False Ceiling Insulation

Insulation

Ceilng

Firestop

Metal Chase Top

Round Termination Cap

False Ceiling

Figure 3.5 Chase Assembly

F. Chimney Requirements

When planning your ¿ replace location, the chimney con-

struction and necessary clearances must be considered.

The ¿ replace system and chimney components have been

tested to provide À exibility in construction. Vertical distances

are measured from the base of the ¿ replace as shown in

Figure 5.2.

Figure 3.6 Chase Constructions

1. Chimney offset through exterior wall and enclosed in

chase.

2. Chase constructed on roof.

Gas line holes and other openings should be caulked with

high temperature caulk or stuffed with unfaced ¿ berglass in-

sulation. If the ¿ replace is being installed on a cement slab,

we recommend that in cold climates, a sheet of plywood or

other raised platform be placed underneath to prevent con-

ducting cold up into the room.

Two examples of chase applications are shown in Fig-

ure 3.6.

ft meters

a. Minimum overall straight height 14.0 4.27

b. Minimum height with offst/return 16.5 4.93

c. Maximum height 90.0 27.43

d. Maximum chimney length bewtween an offset and

return 20.0 6.1

e. Maximum distance between chimney stabilizers 35.0 10.67

f. Double offset/return minimum height 22.0 6.71

g. Maximum unsupported chimney length between the

offset and return 6.0 1.83

h. Maximum unsupported chimney height above the

¿ replace 35.0 10.67

i. Maximum unsupported chimney above roof 6.0 1.83

Note: A maximum of two pairs offsets and returns may be

used.

Heat & Glo • HST-48D • 35039 Rev R • 10/06 13

4 Installation of Fireplace

A. Install the Outside Air Kit

This ¿ replace will operate correctly only if adequate ventila-

tion is provided to allow proper draft to the ¿ replace system.

See Section 2.

Using an outside air kit is highly recommended to minimize

the effects of negative pressure within the structure. We

recommend you utilize the shortest duct run to optimize the

performance of the outside air kit. Cold air À ow can be mini-

mized by putting a small dip in the duct creating a cold air

trap. This trap can also help prevent heat build-up and ex-

hausting out the intake due to the stack effect. The outside

air kit inlet should be positioned in a manner that will not al-

low snow, leaves, etc. to block the inlet. In some installations

the air duct may need to be run vertically. In such an instal-

lation, a 3 ft (.914 m) height difference must be maintained

from the top of the uppermost chimney section to the outside

combustion air inlet. See Figure 4.2.

See Figure 4.3 for proper placement of outside air inlet.

The outside air kit is installed on the left hand side of the

¿ replace. See Figure 4.4 for handle location/operation.

Risk of Smoke Spillage

Outside air inlet must be located to prevent blockage

from:

• Leaves

• Snow/ice

• Other debris

Blockage may cause combustion air starvation.

CAUTION

Sharp Edges

• Wear protective gloves and safety glasses

during installation.

CAUTION Fire Risk

Asphyxiation Risk

Do not draw outside combustion air from:

• Wall, À oor or ceiling cavity.

• Enclosed space such as an attic or

garage.

• Close proximity to exhaust vents or

chimneys.

Fumes or odor may result.

WARNING

Outside Air

Shield

Outside Air

Plate

Assembly

2 Wire Ties

Flexible Duct

(not supplied)

Figure 4.1 Outside Air Installation

Heat & Glo • HST-48D • 35039 Rev R • 10/06

Figure 4.4 Locating the Outside Air Control

(Push slider to open.)

open

Outlet placed

higher than 3 ft

below the

termination cap

Attic space

Garage or

combustible

liquids storage

Outlet blocked by

snow, leaves, etc.

Clear area

outside

house or in

ventilated

crawl space

YES

NO NO

Use only duct materials specified

by manufacturer (preferably with

short run or mainly straight duct,

except small dip for cold air trap

which will help prevent flow of cold air).

Factory-built

fireplace

Figure 4.3 Outside Combustion Air Placement

3 ft min. from top of

uppermost chimney

section to air inlet.

Attic insulation shield

may be used to keep

insulation away from

chimney.

Ceiling firestop

on floor of attic.

Figure 4.2 Outside Air Inlet Locations

Heat & Glo • HST-48D • 35039 Rev R • 10/06 15

B. Secure the Fireplace

• Position the Fireplace

This ¿ replace may be placed on either a combustible or

noncombustible continuous À at surface. Follow the in-

structions for framing in Section 3.D. Slide the ¿ replace

into position. Be sure to provide the minimum air clear-

ance at the sides and back of the ¿ replace assembly.

See Section 3.B.

Included with your ¿ replace you will ¿ nd four metal

hearth strips measuring approximately 28 in. x 4 in.

(711 mm x 102 mm). These strips are used to provide

added protection where the ¿ replace and the hearth ex-

tensions meet.

Slide each metal strip 2 in. (51 mm) under the front

edge of the ¿ replace. The individual pieces must over-

lap each other by 1 in. (25 mm) minimum in the middle

of the ¿ replace to provide continuous coverage of the

À oor. See Figure 4.5. These metal strips should extend

from the front and sides of the ¿ replace opening by 2 in.

(51 mm).

Note: When elevating the ¿ replace above the hearth exten-

sion the front of the elevated platform must be protected with

a protective metal hearth strip as shown in Figure 4.6.

Raised Platform

Floor

2 in.

(51 mm)

1 in. (25 mm) min.

overlap

2 in.

(51 mm)

Top piece must overlap

bottom piece

Figure 4.6 Protect the Front of an Elevated Platform

• Level the Fireplace

Level the ¿ replace side-to-side and front-to-back. Shim

with noncombustible material, such as sheet metal, as

necessary. Secure the ¿ replace (using the nailing À ang-

es located on either side of the ¿ replace) to the vertical

framing.

Important: To ensure proper ¿ t of the glass doors, check

the ¿ replace openings for square. Measure diagonal dis-

tances of each opening to make sure they are equal. If they

are not, continue to shim the ¿ replace until those diagonals

are equal.

1 in. (25 mm) overlap

Metal strips are placed 2 in. (51 mm) under the front

of the fireplace and must extend beyond the front

and sides of fireplace openings by 2 in. (51 mm).

Figure 4.5 Position the Protective Metal Hearth Strips

• Place the Protective Metal Hearth Strips

Fire Risk!

• Prevent contact with sagging, loose

insulation.

• Do NOT install against vapor barriers or

exposed insulation.

WARNING

Fire Risk!

• Metal hearth strips MUST be installed.

Sparks or embers may ignite À ooring.

WARNING

Heat & Glo • HST-48D • 35039 Rev R • 10/06

NOTE:

• Chimney performance may vary.

• Trees, buildings, roof lines and wind conditions affect

performance.

• Chimney height may need adjustment if smoking or

overdraft occurs.

Chimney must extend

beyond combustible

roof structure

Maintain minimum

height of chimney

above roof

Additional

support for

tall chimneys

Install roof flashing

according to minimum

requirements

Maintain minimum

clearances to

combustibles as

specified

Offsets/returns

may not exceed

30° from vertical

Lock chimney

sections together

firmly to resist

movement

Ceiling firestops

are required where

chimney passes

through ceiling or

floor

Support straps for offsets/

returns must be secured

to adequate framing

Termination Cap

Storm Collar

Figure 5.1 Typical Chimney System - Guidelines for Chimney System Installation

5 Chimney Assembly

Heat & Glo • HST-48D • 35039 Rev R • 10/06 17

A. Chimney Requirements

Vertical distances are measured from the base of the ¿ re-

place as shown in Figure 5.2.

To determine the chimney components needed to complete

your particular installation, follow the steps below:

• Determine the total vertical height of the fireplace

installation. This dimension is measured from the base of

the ¿ replace assembly to the point where the smoke exits

the termination cap.

• Subtract the effective height of the ¿ replace assembly from

the overall height of the ¿ replace installation (measured

from the base of the fireplace to the bottom of the

termination cap).

• Refer to Table 5.1 to determine what components must

be selected to complete the ¿ replace installation.

• Determine the number of ceiling ¿ restops, stabilizers,

roof flashing, etc. required to complete the fireplace

installation.

d & g

Ceiling Firestop h

58-7/8 in.

(1495 mm)

Effective

Height

a,b,c,f

Figure 5.2 Chimney Requirements

Table 5.1

• Do NOT connect this fireplace to a chimney flue

servicing another appliance.

• Do NOT connect to any air distribution duct or

system.

CAUTION

Fire Risk

• Must maintain 2 in. (51 mm) air clearance

to insulation and other combustible

materials.

WARNING

ft meters

a. Minimum overall straight height 14.0 4.27

b. Minimum height with offst/return 16.5 4.93

c. Maximum height 90.0 27.43

d. Maximum chimney length bewtween an offset and

return 20.0 6.1

e. Maximum distance between chimney stabilizers 35.0 10.67

f. Double offset/return minimum height 22.0 6.71

g. Maximum unsupported chimney length between the

offset and return 6.0 1.83

h. Maximum unsupported chimney height above the

¿ replace 35.0 10.67

i. Maximum unsupported chimney above roof 6.0 1.83

HEIGHT OF CHIMNEY COMPONENTS in. mm

Chimney Stabilizer

SL11 4-3/4 121

Ceiling Firestops

FS538 0 0

FS540 0 0

Offsets/Returns

SL1130 18 457

Roof Flashing

RF570 0 0

RF571 0 0

Chimney Sections*

SL1106 4-3/4 121

SL1112 10-3/4 273

SL1118 16-3/4 425

SL1136 34-3/4 883

SL1148 46-3/4 1187

* Dimensions reÀ ect effective height.

Note: A maximum of two pairs offsets and returns may

be used.

Heat & Glo • HST-48D • 35039 Rev R • 10/06

B. Using Offsets/Returns

To bypass any overhead obstructions, the chimney may be

offset using an offset/return.

An offset and return may be attached together or a chimney

section(s) may be used between an offset and return.

Perform the following steps to determine the correct chim-

ney component combination for your particular installation:

• Measure how far the chimney needs to be shifted to enable

it to avoid the overhead obstacle. See Figure 5.3. Use

dimension “A” to determine chimney section required to

achieve the needed shift.

• After determining the offset dimension, refer to Table 5.2

and ¿ nd the “A” dimension closest to but not less than the

distance of shift needed for your installation.

• The “B” dimension that coincides with the “A” dimension

represents the required vertical clearance that is needed

to complete the offset and return.

• Read across the chart and ¿ nd the number of chimney

sections required and the model number of those particular

chimney parts.

• Whenever the chimney penetrates a À oor/ceiling, a ceiling

¿ restop must be installed.

• The effective height of the ¿ replace assembly is measured

from the base of the ¿ replace to the top of the starter collar.

See Dimensions in Section 12.

Table 5.2

1-1/4 in. (32 mm)

OVERLAP

Figure 5.3 Chimney Offset/Return

Example: Your “A” dimension from Figure 5.3 is

14 1/2 in. (368 mm). Using Table 5.2 the dimen-

sion closest to, but not less than 14 1/2 in.

(368 mm) is 15 3/4 in. (400 mm) using a 30°

offset/return. It is then determined from the

table that you would need 36 5/8 in. (930 mm)

(Dimension “B”) between the offset and return.

The chimney components that best ¿ t your

application are two SL1112s.

Fire Risk

• Draft will be restricted if offset/returns

greater than 30° are used.

WARNING

SL1106 SL1112 SL1118 SL1136 SL1148in. mm in. mm

4 7/812417 7/8454-----

7 1/4 184 2 2 559 1 - - - -

9 3/424826 1/86642----

10 1/4 260 27 1/4 692 - 1 - - -

12 3/4 324 31 3/8 797 1 1 - - -

13 1/4 337 32 3/8 822 - - 1 - -

15 3/4 400 36 5/8 930 - 2 - - -

18 1/8 460 40 3/4 1035 1 2 - - -

18 3/4 476 41 3/4 1060 - 1 1 - -

21 3/4 552 4 7 1194 - - 2 - -

22 1/45654 81219---1-

24 3/4 629 52 1/8 1324 1 - - 1 -

27 3/4 705 57 3/8 1457 - 1 - 1 -

28 1/471858 3/81483----1

30 3/478162 1/215881---1

33 3/4 857 67 3/4 1721 - 1 - - 1

36 3/493373 1854--1-1

39 3/4101078 1/81984---2-

41 1/8 1045 82 3/8 2092 1 - - 2 -

45 3/4116288 1/22248---11

48 1/8 1222 92 3/4 2356 1 - - 1 1

51 3/4131498 7/82511----2

Proper assembly of air cooled chimney parts results in an overlap of chimney joints

of 1-1/4 in. (32 mm). Effective length is built into this table.

Heat & Glo • HST-48D • 35039 Rev R • 10/06 19

C. Assemble the Chimney Sections

Attach either a straight chimney section or an offset to the

top of the ¿ replace (depending on your installation require-

ment). Chimney sections are locked together by pushing

downward until the top section meets the stop bead on the

lower section.

The inner À ue is placed to the inside of the À ue section below

it. The outer casing is placed outside the outer casing of the

chimney section below it. See Figure 5.4.

D. Install the Ceiling ¿ restops

• Mark and cut an opening in the ceiling for the ceiling

¿ restop being used. See Figure 5.5.

• Frame the opening with the same size lumber used in the

ceiling joists.

• Install the ceiling ¿ restop.

Note: The ceiling ¿ restop MUST be nailed to the bottom

of the ceiling joists EXCEPT when the space above is

uninsulated and the attic insulation shield is not being used

(see Figure 5.5). When the attic insulation shield is used

the ceiling ¿ restop may be above or below the joist of an

insulated ceiling.

Note: You must provide support for the pipe during con-

struction and check to be sure inadvertent loading has not

dislodged the chimney section from the ¿ replace or at any

chimney joint.

Note: Inner À ue and outer liner sections cannot be disas-

sembled once locked together. Plan ahead to ensure the

proper installation height is achieved with the selected

chimney components.

• Ceiling ¿ restops must be used at ceiling/À oor.

• Chase construction requires ceiling ¿ restops at each

À oor or every 10 ft (3.05 m) of clear space.

• Use same dimensional lumber as joists.

Ceiling ¿ restop slows spread of ¿ re and reduces cold air

in¿ ltration.

CAUTION

Figure 5.4 Assembling Chimney Sections

ROOM ABOVE (non-insulated ceiling)

ATTIC ABOVE (insulated ceiling)

Ceilng firestop from

bottom

Ceiling firestop from

top When attic insulation

shield not used

Note: Use same dimensional lumber for framing

ceiling firestop and joists.

Figure 5.5 Installing the Ceiling Firestop

Fire Risk

Do NOT install substitute or damaged

chimney components.

• MUST use chimney system described in

this manual.

• NO OTHER chimney components may

be used.

Substitute or damaged chimney components

may impair safe operation.

WARNING Catalog #

in. mm in. mm

FS538 17 432 17 432

FS540 17 432 26 660

Heat & Glo • HST-48D • 35039 Rev R • 10/06

E. Install the Attic Insulation Shield

An insulation shield must be installed when there is a pos-

sibility of insulation coming into contact with the factory built

chimney system.

• Bend the tabs at the top of the attic insulation shield inward.

This will help keep the chimney section centered in the

shield.

• Position the shield over the vertical chimney section where

it penetrates a ceiling ¿ restop.

• Slide the shield down until it rests on the ceiling ¿ restop.

The ceiling ¿ restop will support the insulation shield. See

Figures 5.6 and 5.7.

F. Double-check the Chimney Assembly

Continue assembling the chimney sections up through the

ceiling ¿ restops as needed. While doing so, be aware of the

height and unsupported chimney length limitations given un-

der Section 5.A. Chimney Requirements.

Check each section by pulling up slightly from the top to en-

sure proper engagement before installing the succeeding

sections. If they have been connected correctly, they will not

disengage when tested.

G. Secure the Chimney

When offsets and returns are joined to straight pipe sections,

they must be locked into position with the screws provided*

(outer only), using the predrilled holes. To prevent gravity

from pulling the chimney sections apart, the returns and the

chimney stabilizers have hanger straps for securing these

parts to joists or rafters. See Figure 5.8.

* or equivalent #6 or #8 sheet metal screw no longer than

3/4 in. (19 mm).

24 in.

(610 mm) Attic

Insulation

Shield

Chimney

Insulation

13 in.

(330 mm)

17 in.

(423 mm)

Ceiling Firestop

Tabs

Figure 5.6 Install Attic Insulation Shield Above the Ceiling

Attic

Insulation

Shield

Chimney

Insulation

Ceiling Firestop

Tabs

24 in.

(610 mm)

13 in.

(330 mm)

17 in.

(423 mm)

Figure 5.7 Install Attic Insulation Shield Below the Ceiling

Ceiling

Firestop

Straps

Optional

Additional

Support

Joint

Band

(Optional)

Figure 5.8 Secure the Chimney

Fire Risk

• DO NOT pack insulation or other

combustibles: between ceiling ¿ restops;

between chimney and attic insulation

shield.

• ALWAYS maintain speci¿ ed clearances

around chimney and ceiling firestop

systems.

• Install ceiling ¿ restops as speci¿ ed.

Failure to keep insulation or other material

away from chimney pipe may cause ¿ re.

WARNING

Fire Risk

• Secure offsets with screws (not to exceed

3/4 in./19 mm in length).

WARNING

• Secure returns with strapping.

• Straight chimney sections may be secured with screws

(not to exceed 3/4 in./19 mm in length) at the joints.

Keep chimney sections from separating or twisting.

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Heat & Glo HST-48D Install Manual

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Modèle: HST-48D

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