Heatiator CL36D User manual

1
Owner’s Manual
Installation and Operation
Models:
CL36D
CR36D
Wood Burning Fireplace
DO NOT DISCARD THIS MANUAL
NOTICE
• 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 fireplace
should be performed by qualified personnel.
Hearth & Home Technologies suggests NFI
certified or factory-trained professionals, or
technicians supervised by an
NFI certified professional.
Fire Risk
• For use with solid wood fuel or decorative
gas appliance only.
• DO NOT install unvented gas logs.
WARNING
If the information in these instruc-
tions is not followed exactly, a
fire may result causing property
damage, personal injury, or death.
• Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
• Do not overfire. Overfiring will void your
warranty.
• Comply with all minimum clearances to
combustibles as specified. Failure to
comply may cause house fire.
WARNING WARNING
Hot screen/mesh and glass doors will cause burns.
• DO NOT touch screen/mesh or glass doors until
cooled
• NEVERallowchildrentotouchscreen/meshorglass
doors
• Keep children away
• CAREFULLY SUPERVISE children in same room as
fireplace.
• Alert children and adults to hazards of high
temperatures.
High temperatures may ignite clothing or other
flammable materials.
• Keep clothing, furniture, draperies and other
flammable materials away.
HOT SURFACES!
Screen/mesh, glass doors
and other surfaces are hot
during operation AND cool
down.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

2
Read this manual before installing or operating this fireplace.
Please retain this owner’s manual for future reference.
Homeowner Reference Information
Model Name: Date purchased/installed:
Serial Number: Location on fireplace:
Dealership purchased from: Dealer phone:
Notes:
We recommend that you record the following pertinent
information about your fireplace:
Listing Label Information/Location
The model information regarding your specific fireplace can be found on the rating plate located on the smoke shield of
the fireplace.
Congratulations!
Grate Fireplace
Model
Serial
Number
Note: An arrow ( ) found in the text signifies change in content.
Î
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09
Congratulations on selecting a Heatilator wood burning
fireplace. The Heatilator fireplace you have selected is
designed to provide the utmost in safety and reliability.
As the owner of a new fireplace, you’ll want to read and
carefully 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 refer-
ence. We suggest you keep it with your other important
documents and product manuals.
Your new Heatilator wood burning fireplace will give you
years of durable use and trouble-free enjoyment. Wel-
come to the Heatilator family of fireplace products!
FIREPLACE NO.
MODEL 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.

3
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Indicates practices which may cause damage to the fireplace or to property.
!
Table of Contents
Congratulations! 2
Limited Warranty 4
1 Listing and Code Approvals 6
A. Appliance Certification 6
B. Non-Combustible Materials 6
C. Combustible Materials 6
User Guide
2 Operating Instructions 7
A. Your Fireplace 7
B. Seasoned Wood 8
C. Starting a Fire 8
D. Grate 8
E. Firescreen 8
F. Flue Damper 8
G. Refractory 8
H. Glass Doors 9
I. Outside Air (optional) 9
J. Vented Gas Log Sets & Gas Log Lighters 9
K. Optional Components 9
L. Clear Space 9
M. Wood Fuel 10
3 Maintenance and Service 11
A. Disposal of Ashes 11
B. Chimney Inspection/Cleaning 11
C. Check Firebox Refractory 12
D. Inspect Grate 12
E. Glass Cleaning 12
4 Troubleshooting Guide 13
Installer Guide
5 Getting Started 14
A. Typical Fireplace System 14
B. Design and Installation Considerations 15
C. Draft 15
D. Negative Pressure 15
E. Locating Fireplace & Chimney 16
F. Tools and Supplies Needed 17
G. Fireplace System Requirements 17
H. Inspect Fireplace and Components 17
6 Framing & Clearances 18
A. Select Fireplace Location 18
B. Clearances 19
C. Sidewalls/Surrounds 20
D. Frame the Fireplace 21
7 Installation of Fireplace 22
A. Things to Consider 22
B. Position the Fireplace 22
C. Place Protective Metal Hearth Strips 22
D. Level Fireplace 22
E. Install Outside Air Kit 24
8 Chimney Assembly 25
A. Chimney Requirements 26
B. Using Offsets/Returns 27
C. Assemble Chimney Sections 28
D. Install Chimney Air Kit 28
E. Install Ceiling Firestops 28
F. Install Attic Insulation Shield 29
G. Cut out Hole in Roof 30
H. Complete Installation 30
I. Install Flashing 30
J. Chimney Termination Requirements 31
9 Chase Installations 32
A. Construct the Chase 32
B. Install Fireplace & Chimney 33
C. Install Chase Top 33
D. Install Termination Cap 33
10 Shrouds 35
A. Radiation Shield 35
B. Field Constructed Shrouds 35
11 Finishing 37
A. Non-combustible Materials 37
B. Combustible Materials 37
C. Hearth Extension 37
D. Finishing Material 38
E. Combustible Mantel 39
F. Sidewalls/Surrounds 40
12 Accessories 41
A. Gas Log/Lighter Provision 41
B. Wood Burning Inserts 41
13 Reference Materials 42
A. Fireplace Dimensions 42
B. Optional Components 42
C. Chimney Components 43
D. Service Parts 46
E. Contact Information 48
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

4Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09
Limited Warranty
Î

5
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

6
1
1 Listing and Code Approvals
NOTICE: This fireplace is tested and approved as a
decorative fireplace. It should not be factored as a primary
heat source in residential heating calculations.
WARNING! Risk of Fire! Hearth & Home Technologies
disclaims any responsibility for, and the warranty and
agency listing will be voided by the following actions.
DO NOT:
• install or operate damaged fireplace
• modify fireplace
• install other than as instructed by Hearth & Home
Technologies
• operate the fireplace without fully assembling all
components
• overfire
• install an unvented gas log set
• installanycomponentnotapprovedbyHearth& Home
Technologies
• install parts or components not Listed or approved
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. For
assistance or additional information, consult a qualified
installer, service agency or your dealer.
B. Non-Combustible Materials
• Materials which will not ignite and burn, composed of
any combination of the following:
- Steel - Iron
- Brick - Tile
- Concrete - Slate
- Glass - Plasters
• Materials reported as passing ASTM E 136, Standard
Test Method for Behavior of Metals, in a Vertical Tube
Furnace at 750° C
C. Combustible Materials
• Materials made of or surfaced with any of the following
materials:
- Wood - Compressed paper
- Plant fibers - Plastic
• Any material that can ignite and burn; flame proofed or
not, plastered or un-plastered
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09
A. Appliance Certification
This fireplace may be installed in sleeping rooms EX-
CEPT in manufactured homes. If installed with a gas log
set, provisions for the National Fuel Gas Code must be
met.
This fireplace has been tested and listed for use with the
optional components specified in this manual. These op-
tional components may be purchased separately and in-
stalled at a later date. Installation of an outside air kit will
require significant reconstruction and is best if installed at
the time of fireplace installation.
Heatilator is a registered trademark of Hearth & Home
Technologies Inc.
This fireplace system has been tested and listed in accor-
dance with UL 127 and ULC-S610 standards by Under-
writers Laboratories Inc. for installation and operation in
the United States and Canada.

7
2
2 Operating Instructions
WARNING! DO NOT operate fireplace before reading and understanding operating instructions. Failure to operate fireplace
according to operating instructions could cause fire or injury.
User Guide
WARNING
Hot glass will cause burns.
• DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as fireplace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other flammable materials.
• Keep clothing, furniture, draperies and other flammable materials away.
HOT SURFACES!
Glass and other surfaces are hot during operation AND cool down.
Figure 2.1 General Operating Parts
A. Your Fireplace
If you expect that children may come into contact with this fireplace, we recommend a barrier such as a decorative
screen. See your dealer for suggestions.
Gas Log Set
Gas Log Lighters
(not shown)
Section 2.K.
Firescreen
(not shown)
Section 2.E.
Glass Doors
(not shown)
Section 2.H.
Grate
Section 2.D.
Refractory
Section 2.G.
Outside Air
Control Handle
Section 2.I.
IN - closed
OUT - open
Hearth Clear Space
Section 2.L.
Wood Fuel
Section 2.M.
Flue Damper
Section 2.F.
Down Closed
Up Open
Chimney
Air Kit Control
(not shown,
required in Canada)
Section 8.D.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

8
• Thefirstthreeorfourfiresshouldbeofmoderatesize to
allowtheoilsandbindersto be burned fromthefireplace
and the refractory and paint to cure. You may notice
an industrial odor the first few fires. This is considered
normal.
• Use well-seasoned wood.
• Open the flue damper to a fully open position.
• Place crumpled or twisted paper under the fireplace
grate.
• Looselyarrangekindlingorsmallpiecesofwoodto form
a ‘tent’ on the fireplace grate.
• Pre-warm the flue to establish a draft to help reduce
smoke spillage during start-up. Hold a rolled up piece
of burning newspaper under the flue damper for a few
moments.
• Light the crumpled paper to ignite the kindling.
• Add small pieces of wood until a hot bed of embers has
been established.
• Add a minimum of three average size pieces of split
firewood, placed to allow combustion air and flames
between them.
C. Starting a Fire
NOTICE: You must establish a good draft to prevent smoke
spillage into the room.
WARNING! Risk of Fire! Keep combustible materials,
gasoline and other flammable vapors and liquids clear of
the fireplace.
DO NOT:
• store flammable materials close to the fireplace
• use gasoline, lantern fuel, kerosene, charcoal lighter
fluid or similar liquids to start or “freshen up” a fire in this
fireplace.
Keepallflammableliquidswellawayfrom the fireplacewhile
it is in use. Combustible materials may ignite.
B. Seasoned Wood
Properly seasoned wood is important for successful
operation of your fireplace. Most woodburning fireplace
problems are caused by burning wet, unseasoned wood.
Seasoned firewood is wood that is cut to size, split and air
dried to a moisture content of around 20%.
Imagine a wooden bucket that weighs about eight
pounds. Fill it with a gallon of water, put it in the fireplace
and try to burn it. This sounds ridiculous but that is exactly
what you are doing if you burn unseasoned wood.
A tree cut down a year ago and not split is likely to have
almost as high a moisture content now as it did when it
was cut.
Please refer to Section 2.M. for more detail.
CAUTION! Odors and vapors released during initial
operation may be irritating to sensitive individuals.
Open windows for air circulation.
D. Grate
This fireplace is designed to be used with the grate sup-
plied with this unit or one approved by HHT. The grate will
break down over time and will need occasional replace-
ment.
WARNING! Risk of Fire! Use only the factory-supplied
integral grate.
• Keeps logs in place.
• Allows proper air circulation around the fire.
E. Firescreen
The firescreen is provided to control sparks. Keep it
closed when the fireplace is in use.
WARNING! Risk of Fire or Burns!
• Screen will not prevent burning materials from falling
out.
• Screen pulls or handles may be hot.
F. Flue Damper
• Refer to Figure 2.1 for location of control.
• Must be in fully open position (handle up toward the top
of the fireplace) during operation of the fireplace.
• Before lighting the fireplace, verify fully open position by
looking up from the inside of the fireplace.
WARNING! Risk of Fire and Asphyxiation! Open
damper prior to operating fireplace. A closed damper
overfires the fireplace and spills smoke and flames
into the room.
G.Refractory
• The refractory is supplied to contain heat and provide
an attractive interior.
• It will break down over time and will need occasional
replacement.Smallhairlinecracksanddiscolorationare
normal and do not affect its safety.
• (See refractory maintenance Section 3.C.)
WARNING! Risk of Fire! DO NOT burn fireplace with-
out refractory. Use only refractory supplied by Hearth &
Home Technologies, Inc.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

9
CORRECT CORRECT INCORRECT
Figure 2.2 Operating Positions of Bi-fold Doors
WARNING! Risk of Fire and Smoke! Fireplaces
equipped with doors should be operated only with
doors fully open or doors fully closed. If doors are left
partly open, gas and flame may be drawn out of the
fireplace opening.
I. Outside Air (optional)
The outside air kit supplies some combustion air for your
fireplace. It may help reduce the effects of negative air
pressure. (See Section 5.D.)
• Refer to Figure 2.1 for location of control
• Close the inlet to prevent cold drafts when the fireplace
is not being used.
CAUTION! Risk of Burns! The outside air control
handle is HOT when fireplace is in operation. Adjust
BEFORE lighting fire.
WARNING! Risk of Fire! Install ONLY doors ap-
proved by Hearth & Home Technologies, Inc.
• Glass doors are optional.
• Refer to Figure 2.2 for how to properly use them.
H. Glass Doors
18 in. (45.7 cm)
Clear Space
from
Opening of
Fireplace
48 in. (121.9 cm)
Clear Space
Front of Fireplace
Figure 2.3 Clear Space
J. Vented Gas Log Sets & Gas Log Lighters
• Optional
• Vented gas logs or gas log lighters can be installed in
this fireplace. Follow the instructions provided with the
accessory for operation.
K. Optional Components
• Other options may be available
• Consult your dealer/distributor
L. Clear Space
• Do not place combustible objects within areas indicated
in Figure 2.3.
WARNING! DO NOT place combustible objects in front
of the fireplace. High temperatures may ignite clothing,
furniture or draperies.
• Mantel - avoid placing candles and other heat-sensitive
objects on mantel or hearth. Heat may damage these
objects.
WARNING! Risk of Fire or Asphyxiation!
• DO NOT install unvented gas logs.
• Damper must be locked open.
• Gas flame may generate fumes.
WARNING! Risk of Fire! DO NOT install and or use
any component not approved by Hearth & Home Tech-
nologies Inc.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

10
M.Wood Fuel
Hardwood vs Softwood
Your fireplace performance depends on the quality of the
firewood you use.
• Seasoned wood contains about 8,000 BTUs per pound
.
• Hard woods are more dense than soft woods.
• Hard woods contain 60% more BTUs than soft woods.
• Hard woods require more time to season, burn slower
and are harder to ignite.
• Soft woods require less time to dry, burn faster and are
easier to ignite.
• Start the fire with soft wood to bring the fireplace up to
operating temperature and to establish draft.
• Add hard wood for slow, even heat and longer burn
time.
The majority of the problems fireplace owners experience
are caused by trying to burn wet, unseasoned wood.
• Wet, unseasoned wood requires energy to evaporate
the water instead of heating your home, and
• Evaporating moisture cools your chimney, accelerating
formation of creosote.
WARNING! Risk of Fire!
• DO NOT burn wet or green wood.
• Wet, unseasoned wood can cause accumulation of
creosote.
Moisture
Soft woods Hard woods
• Douglas Fir • Oak
• Pine • Maple
• Spruce • Apple
• Cedar • Birch
• Poplar
• Aspen
• Alder
Storing Wood
Steps to ensure properly seasoned wood:
• Stack wood to allow air to circulate freely around and
through woodpile.
• Elevate wood pile off ground to allow air circulation
underneath.
• Smaller pieces of wood dry faster. Any piece over 6 in.
(152 mm) in diameter should be split.
• Wood (whole or split) should be stacked so both ends
of each peice are exposed to air. More drying occurs
through the cut ends than the sides.
• Store wood under cover to prevent water absorbtion
from rain or snow. Avoid covering the sides and ends
completely.
Seasoned Wood
• Cut logs to size
• Split to 6 in. (152 mm) or less
• Air dry to a moisture content of around 20%
- Soft wood - about nine months
- Hard wood - about eighteen months
NOTICE: Seasoningtimemayvarydependingon drying
conditions.
WARNING! Fire Risk! DO NOT store wood:
• In front of the fireplace.
• In space required for loading or ash removal.
Processed Solid Fuel Firelogs
Manufactured firelogs may be used with this fireplace.
Hearth & Home Technologies Inc. recommends the use of
UL Classified processed fuel firelogs. Follow the manufac-
turer’s lighting and safety instructions.
Using firelogs may require more frequent chimney inspec-
tion and cleaning.
Do not poke or stir the logs while they are burning. Use
only firelogs that have been evaluated for the application
in manufactured fireplaces and refer to firelog warnings
and caution markings on packaging prior to use.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

11
3
3 Maintenance and Service
Figure 3.1 Chimney & Termination Cap Cleaning
A. Disposal of Ashes
Frequency: When they reach bottom of grate
By: Homeowner
WARNING! Risk of Fire! Ashes could contain hot em-
bers.
• Place ashes in a metal container with a tight-fitting lid.
• The closed container should be placed on a non-
combustible floor or on the ground, well away from all
combustible materials, pending final disposal.
• Iftheashesaredisposedofbyburialinsoilorotherwise
locally dispersed, they should be retained in the closed
container until all cinders have thoroughly cooled.
B. Chimney Inspection/Cleaning
Frequency: At least twice a year during heating season
or as recommended by a certified chimney sweep
By: Certified chimney sweep
WARNING! Risk of Fire! Ignited creosote is extremely
HOT. Prevent creosote buildup.
Refer to Figure 3.1 to remove/reinstall termination caps.
Creosote - Formation and Need for Removal
When wood is burned slowly, it produces tar and other
organic vapors, which combine with expelled moisture to
form creosote. The creosote vapors condense in the rela-
tively cool chimney flue of a slow-burning fire. As a result,
creosote residue accumulates on the flue lining. When
ignited this creosote makes an extremely hot fire.
WARNING! Risk of Fire! A chimney fire can permanently
damage your chimney system and nearby structures.
In the event of a chimney fire, Hearth & Home Technolo-
gies Inc. recommends
• replacement of the chimney, and
• inspection of the adjacent structure to the provisions of
NFPA Level III inspection criteria.
The chimney shall be inspected at least twice a year
during the heating season to determine when a creosote
buildup has occurred.
When creosote has accumulated it shall be removed to
reduce the risk of a chimney fire.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09
Chimney
Remove 4 screws
and lift top pan off.
Cap
Slip
Section
ST375
Square
Termination Cap
Cap
Remove screws,
lift top cover.
Top Cover
TR344/TR342
Round
Termination Cap
Chase
Cap
1. Remove the 4 screws.
2. Remove the screen.
3. Remove the baffle.
TS345/TS345P
Square
Termination Caps
TCT375
Terra Cotta
Termination Cap
Remove 2 screws from
the front and back and
lift the top off.

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C. Check Firebox Refractory
Frequency: After each ash removal
By: Homeowner
D. Inspect Grate
Frequency: After each ash removal
By: Homeowner
Inspect grate for:
• Warping or sagging 1-1/2 in. (38 mm) or more
• Broken welds
• Burn-through of grate bars
For safe operation, replace only with an approved grate
from Hearth & Homes Technologies Inc.
WARNING! Risk of Fire! Inspect fireplace refractory.
Crumbling, deteriorated refractory can allow overheating
of surrounding materials.
Expansion and contraction will cause minor cracking of
the refractory. This is normal. The refractory will require
periodic replacement depending on use.
The panels should be replaced if
• Cracks exceed ¼ inch (6 mm) in width,
• Metal is exposed behind the refractory,
• Large pieces of refractory fall out.
E. Glass Cleaning
Frequency: As desired
By: Homeowner
Clean glass with a non-abrasive commercially available
cleaner or ashes:
• Light deposits
- Use household glass cleaner
• Heavy deposits
- Use wood ash on damp cloth or,
- Usecommercialfireplaceglasscleaner(consultwith
your dealer)
CAUTION! Handle glass assembly with care. Glass is
breakable.
• Avoid striking, scratching or slamming glass
• Avoid abrasive cleaners
• DO NOT clean glass while it is hot
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

13
4
4 Troubleshooting Guide
Start Fire Problems Possible Cause Solution
Can’t get fire started
Excessive smoke or spillage
Burns too slowly
Smolders, sizzles
Not enough kindling/paper or no
kindling/paper Use dry kindling, more paper. Arrange kindling & wood for air movement.
Damper closed/not fully open Open damper.
Not enough air for fire to ignite Check for restricted cap/shroud.
Open air kit (if installed).
Check for flue blockage.
Pre-warm flue before starting fire (refer to starting
fire section).
Check for adequate vent height (refer to chimney
assembly section).
Open window below the fireplace towards the
wind.
Wood condition is too wet, too
large Use dry, seasoned wood (refer to wood fuel section).
Bed of coals not established
before adding wood Start with paper & kindling to establish bed of coals (refer to starting fire section).
Flue blockage such as birds’
nests or leaves in termination
cap
Have chimney inspected for creosote and cleaned
by a certified chimney sweep.
Down draft or negative pressure
Competition with exhaust
devices
Do not use exhaust fans during start-up (refer to
negative pressure section).
Open window below the fireplace towards the
wind.
Fire burns too fast Extremely dry or soft wood Mix in hardwood.
Mix in less seasoned wood after fire is established
(refer to wood fuel section).
No glass doors Add glass doors to slow down air flow.
Overdrafting Check for correct vent height; too much vertical
height creates overdrafting.
Check location of vent termination (refer to
chimney assembly section).
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

14
5
5 Getting Started
A. Typical Fireplace System
Installer Guide
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09
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Non-combustible
roof flashing maintains
minimum clearance
around chimney
Additional lateral
support for chimney
above roof (or enclosed
in chase) if needed
(Section 8)
Ceiling firestop
on floor of attic
(Section 8)
Support straps
on rafter support
chimney (not shown)
Termination cap
(Section 8 & 9)
Chimney penetrates roof
preferably without affecting
roof rafters (Section 9)
Offset & Return (with hanger straps)
(Section 8)
Framing headed off
in ceiling joists
(Section 8)
Enclosed space above
and around fireplace
(Section 6)
Mantel and surround
(Section 11)
Decorative facing
and trim
(Section 11)
Hearth extension
(Section 11)
Factory-built fireplace
Protective metal
hearth strip(s)
(Section 7)
Outside
combustion air
(Section 7)
Combustible framing/header
on top of V-shaped standoffs
(Section 6)
Chimney system
(Section 8)
Attic insulation shield (not shown)
must be used here to keep
insulation away from chimney
if attic is insulated (Section 8)
Storm Collar
(Section 8)
NOTICE:
• Illustrations and photos reflect typical installations
and are for design purposes only.
• Illustrations/diagrams are not drawn to scale.
• Actual product may vary from pictures in manual.
Chimney Air Kit
(Section 8)
Required in
Canada. Outlet
must be no
less than 6 ft.
(1.83m) off
ground level.
Figure 5.1 Typical Fireplace System

15
Negative pressure results from the imbalance of air avail-
able for the fireplace to operate properly. It can be stron-
gest in lower levels of the house.
Causes include:
• Exhaust fans (kitchen, bath, etc.)
• Range hoods
• Combustionairrequirementsforfurnaces, 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 such as:
- Recessed lighting
- Attic hatch
- Duct leaks
To minimize the effects of negative air pressure:
• Install the outside air kit with the intake facing prevailing
winds during the heating season
• Ensure adequate outdoor air for all combustion
appliances and exhaust equipment
• Ensure furnace and air conditioning return vents are not
located in the immediate vicinity of the fireplace
• Avoid installing the fireplace near doors, walkways or
small isolated spaces
• Recessed lighting should be a “sealed can” design
• Attic hatches weather stripped or sealed
• Atticmountedductwork andairhandlerjoints andseams
taped or sealed
• Basement installations should be avoided
WARNING! Risk of Asphyxiation! Negative pressure
can cause spillage of combustion fumes and soot. Fire
must draft properly for safe operation.
NOTICE:Hearth&HomeTechnologiesInc.recommends
the use of direct vent fireplaces in basements.
D. Negative PressureB. Design and Installation Considerations
Draft is the pressure difference needed to vent fireplaces
successfully. When a fireplace is drafting successfully, all
combustion byproducts are exiting the home through the
chimney.
Considerations for successful draft include:
• Preventing negative pressure
• Location of fireplace and chimney
Before installing, determine the following:
• Where the fireplace is to be installed
• The vent system configuration to be used
• Gas supply piping
• Electrical wiring
• Framing and finishing details
• Whether optional accessories—devices such as a fan,
wall switch or remote control—are desired
NOTICE: Check building codes prior to installation.
• Installation MUST comply with local, regional, state and
national codes and regulations.
• Consult insurance carrier, local building inspector, fire
officialsorauthorities havingjurisdictionoverrestrictions,
installation inspection and permits.
NOTICE: Hearth & Home Technologies assumes no
responsibility for the improper performance of the fireplace
system caused by:
• Inadequate draft due to environmental conditions
• Downdrafts
• Tight sealing construction of the structure
• Mechanical exhausting devices
• Improper location of the chimney
C. Draft
NOTICE: Junction box should be installed during initial
setup to avoid major reconstruction.
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16
Marginal Location:
• Below peak
Location NOT recommended:
• Not the highest point of the roof
• Wind loading possible
Multi-level Roofs
Windward
Leeward
Recommended Location:
• Above peak
Recommended:
• Insulated exterior chase
in cooler climates
Recommended Location:
• Above peak
• Inside heated space
Location NOT recommended:
• Too close to tree
• Below adjacent structure
• Lower roof line
• Avoid outside wall
Marginal Location:
• Wind loading possible
Figure 5.2 Recommended Chimney Locations
E. Locating Fireplace & Chimney
Location of the fireplace and chimney will affect perfor-
mance.
• Installwithinthewarmairspaceenclosedbythebuilding
envelope. This helps to produce more draft, especially
during lighting and die-down of the fire.
• Penetrate the highest part of the roof. This minimizes
the effects of wind loading.
• Locate termination cap away from trees, adjacent
structures, uneven roof lines and other obstructions.
• Minimize the use of chimney offsets.
• Considerthefireplacelocationrelativeto floorandceiling
and attic joists.
• Take into consideration the termination requirements in
Section 8 and Section 9.
NOTICE:Locatingthefireplacein abasementor inalocation
ofconsiderableairmovementcancauseintermittentsmoke
spillage from fireplace. Do not locate fireplace near
• frequently open doors
• central heat outlets or returns
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

17
Before beginning the installation be sure the following
tools and building supplies are available:
Reciprocating saw Framing material
Pliers Non-combustible sealant
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
F. Tools and Supplies Needed H. Inspect Fireplace and Components
WARNING! Risk of Fire and/or Explosion! Damaged
parts could impair safe operation. DO NOT install dam-
aged, incomplete or substitute components. Keep fire-
place dry.
• Remove fireplace and components from packaging and
inspect for damage.
• 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 benefit.
G.Fireplace System Requirements
This fireplace system requires:
• Fireplace
• Hearth Refractory
• Grate Assembly
• Hearth Extension (required, sold separately)
• Chimney Air Kit (required in Canada)
• Chimney System (required, sold separately)
• Termination Cap (required, sold separately)
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

18
6
6 Framing & Clearances
Figure 6.1 Fireplace Locations (Framing dimensions shown)
A. Select Fireplace Location
23 in.
45 in.
48 in. Min.
45 in.
23 in.
48 in. Min.
Note: 18 in. minimum from
front opening to sidewall.
1/2 in. min. distance from
fireplace to combustible
materials.
Note:
Note: In addition to these
framing dimensions,
also reference the
following sections:
• Clearances (Section
6.B.)
• Mantel Projections
(Section 11.E.)
• Fireplace Dimensions
(Section 13.A.)
18 in. minimum from
front opening to sidewall
As room divider
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09

19
B. Clearances
WARNING! Risk of Fire! You must comply with all minimum air space clearances to combustibles as specified in Fig-
ure 6.2. DO NOT pack required air spaces with insulation or other materials.
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09
(insulation)
0 in. to level
of standoffs
Attic
Insulation
Shield
(ceiling)
(roof)
(attic)
(ceiling)
Ceiling Firestop
Offset/Return (secured
with hanger straps)
Storm Collar
Roof Flashing
1/2 in. (13 mm) to back &
side of appliance
Must have 2 in. (51 mm)
minimum clearance
to header
0 in.
to floor
2 in. (51 mm) min.
Shaded areas
represent
2 in. (51 mm) min.
air space clearance
required around pipe
Chimney air kit
attached here (not shown)
Figure 6.2 Clearances to Combustible Materials
Note: Chimney air kit is not shown, but is required in Canada.

20
16 3/4 in.
Minimum
48 in. Min.
36-5/8 in.
50 deg
20 in.
4 in.
39 deg
BRICK
FRONT
14-1/2 in.
18 in. Min.
48 in. Min.
34 in.
39 deg
14-1/2 in.
18 in. Min.
16 3/4 in.
Minimum
50 deg
20 in.
C. Sidewalls/Surrounds
• Adjacent combustible sidewalls must be located a minimum of 18 in. (305 mm) from the front fireplace opening.
• Combustible and non-combustible mantel legs, surrounds and stub walls may be constructed within the gridded area,
Figure 6.3.
Figure 6.3 Mantel Leg or Wall Projections
Heatilator • CL36D, CR36D • 12538 • Rev V • 05/09