Heatilator BIR42-B User manual

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23 1
WOODBURNING FIREPLACE
Fire Risk.
WARNING
For use with solid wood fuel only.
Other fuels may overre and generate
poisonous gases (i.e. carbon monoxide).
Model(s):
Installation Manual
Installation and Fireplace Setup
WARNING
HOT SURFACES!
Glass and other surfaces are hot during
operation AND cool down.
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
replace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other ammable
materials.
• Keep clothing, furniture, draperies and other ammable
materials away.
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
BIR36-B
NOTICE: DO NOT discard this manual!
• DO NOT store or use gasoline or other 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 com-
bustibles as specied. Failure to comply may
cause house re.
WARNING: If the information in these
instructions is not followed exactly, a re
or explosion may result causing property
damage, personal injury, or death.
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recomends HHT
Factory Trained or NFI certified professionals.

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/232
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 replace or to property.
Table of Contents
1 Product Specic & Important Safety Information
A. Fireplace Certication 4
B. Non-Combustible Materials 4
C. Combustible Materials 4
2 Getting Started
A. Typical Fireplace System 5
B. Design and Installation Considerations 6
1. Selecting Fireplace Locations 6
2. Locating Fireplace & Chimney 7
C. Tools and Supplies Needed 8
D. Inspect Fireplace and Components 8
E. Fireplace System Requirements 8
3 Framing and Clearances
A. Appliance Dimensions/Weight 9
B. Clearances 10
Minimum Clearances to Combustibles 10
C. Construct the Chase 11
D. Frame the Fireplace 12
E. Secure and Level the Fireplace 13
F. Protective Metal Hearth Strips 14
G. Outside Air Kit 14
4 Chimney and Termination Requirements
A. Chimney Requirements 16
B. O󰀨sets/Returns 17
C. Termination Requirements 18
5 Chimney Installation
A. Typical Chimney System 19
B. Assemble Chimney Sections 20
C. Install Chimney Air Kit 20
D. Secure O󰀨set/Return 21
E. Install Ceiling Firestops 21
F. Install Attic Insulation Shield 22
G. Roof Penetration 23
H. Install Chase/Chase Top 23
I. Termination Cap Requirements 24
J. Install Termination Cap 24
6 Shrouds
A. Radiation Shield 26
B. Field Constructed Shrouds 26
1. Open Top Shroud 26
2. Mailbox Style Shroud 27
3. Roofed Style Shroud 27
7 Finishing
A. Finishing Material 28
B. Hearth Extension, Building and Finishing 30
1. Fireplace Installed Flush on the Floor and
Hearth Extension Raised to Bottom of Firebox
Opening 31
2. Raised Hearth Extension and Raised Fireplace 32
3. Fireplace Opening and Hearth Extension Flush
with the Floor 32
C. Non-Combustible Sealant Material 33
D. Mantel and Wall Projections 33
E. Sidewalls/Surrounds 34
8 Fireplace Setup
A. Install Hearth Molded Brick Panel 35
B. Install Back Molded Brick Panel 35
C. Install Side Molded Brick Panel 35
D. Install Screens 36
E. Install Mortar (Optional) 36
F. Grate 36
G. Gas Log/Lighter Provision 37
H. Wood Burning Inserts 37
9 Reference Materials
A. Chimney Components 38
B. Optional Components 42
►

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23 3
Customer:
Lot/Address
Model (circle one): BIR36-B
Fireplace Install YES IF NO, WHY?
Protective hearth strips installed per manual requirements. (Pg. 14)
Outside air kit installed. (Pg 15)
Chimne
y
Section 4 & 5 (Pg. 16)
Attic insulation shield installed.
Shrouds Section 6 (Pg. 26)
Shroud is installed properly per instructions.
Finishing Section 7 (Pg. 28)
WARNING! Risk of Fire or Explosion! Failure to install fireplace acording to these instructions can lead to a fire or
explosion.
Verified that the chase is insulated and sealed. (Pg. 11)
Verified clearances to combustibles. (Pg. 10)
Fireplace is leveled and secured. (Pg. 13)
Hearth extension size/height decided. (Pg. 30)
Chimney configuration complies with diagrams.
Chimney installed, locked and secured in place with proper clearance.
Chimney air kit installed.
Firestops installed.
ATTENTION INSTALLER:
Follow this Standard Work Checklist
This standard work checklist is to be used by the installer in conjuction with, not instead of, the instructions contained in this installation
manual.
Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone #
Serial #:
Roof flashing installed.
Terminations installed.
Combustible materials not installed in non
-
combustible areas
Hearth extension installed per manual requirements.
Fireplace Setup Section 8 (Pg. 35)
Hearth & Home Technologies recommends the following:
Comments communicated to party responsible
4059-711 • Rev C • 3-25-13
Verified all clearances meet installation manual requirements.
Mantels and wall projections comply with installation manual requirements.
All packaging and protective materials removed.
Optional doors properly installed.
Molded brick panels installed correctly.
Grate is properly installed.
Firescreen installed properly.
__________________________ by ______________________on _________
(Builder/Gen. Contractor) (Installer) (Date)
Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed:
Manual bag and all of its contents are removed from the fireplace and given to the party
responsible for use and operation.
• That this checklist remain visible at all times on the fireplace until the installation is complete.
• Photographing the installation and copying this checklist for your file.
Combustible materials not installed in non
-
combustible areas
.

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/234
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replace
• modifyreplace
• install other than as instructed by Hearth & Home
Technologies
• operate the fireplace without fully assembling all
components
• overre
• install any component not approved by Hearth & 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 qualied
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 bers - Plastic
- Plywood/OSB - Sheet rock (drywall)
• Any material that can ignite and burn; ame proofed or
not, plastered or un-plastered
11 Product Specic & Important Safety Information
A. Fireplace Certication
WARNING: This product and the fuels
used to operate this product (wood and
wood pellets), and the products of com-
bustion of such fuels, can expose you to
chemicals including carbon black, which is
known to the State of California to cause
cancer and carbon monoxide, which is
known to the State of California to cause
birth defects or other reproductive harm.
For more information go to: www.P65Warn-
ings.ca.gov.
This replace system has been tested and listed in accor-
dance with UL127 Standards by Underwriters Laborato-
ries Inc. for installation and operation in the United States.
This replace may be installed in sleeping rooms. This
replace is not approved for manufactured housing. If in-
stalled with a gas log set, provisions for the National Fuel
Gas Code must be met.
This replace has been tested and listed for use with the
optional components specied 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 signicant reconstruction and is best if installed at
the time of replace installation.
Heatilator is a registered trademark of Hearth & Home
Technologies.

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23 5
22 Getting Started
A. Typical Fireplace System
Figure 2.1 Typical Fireplace System
Non-combustible
roof flashing maintains
minimum clearance
around chimney
Additional lateral
support for chimney
above roof (or enclosed
in chase) if needed
Ceiling firestop
on floor of attic
Support straps
on rafter supports
chimney (not shown)
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)
Combustible
framing/header
on top of
V-shaped
standoffs
(spacers)
Chimney system
Attic insulation shield must
be used here to keep insulation away
from chimney if attic is insulated
Storm Collar
Outside Air
(both sides)

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/236
Figure 2.2 Fireplace Locations
NOTICE:
• Illustrationsandphotosre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.
NOTICE: In addition to these framing dimensions, also
reference the following section:
• Clearances (Section 3).
NOTICE:
A minimum 1-1/2 in. air clearance at the back and
a minimum 1-1/2 in. air clearance to the sides of
thereplaceassemblymustbemaintained.
Chimney sections at any level require a 2 in. mini-
mum air space clearance between the framing
and chimney sections.
B. Design and Installation Considerations
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, re
o󰀩cials or authorities having jurisdiction over restrictions,
installation inspection and permits.
• Before installing, determine the following:
- Where the replace is to be installed.
- The vent system conguration to be used.
- Gas supply piping.
- Electrical wiring.
- Framing and nishing details.
- Whether optional accessories - devices such as a
fan, wall switch or remote control - are desired.
1. Selecting Fireplace Locations
This replace may be used as a room divider, installed
along a wall, across a corner or used in an exterior chase.
See Figure 2.2.
Locating the replace in a basement should be avoided.
Locating near frequently opened doors, central heat
outlets or returns, or other locations of considerable air
movement can a󰀨ect the performance.
A*
F
D
BC
1/2 in. (13 mm) all
configurations
1-1/2 in. min. air space
from fireplace to
combustible materials.
1/2 in. min. air space at
nailing flanges.
Note:
In an exterior chase
or projecting into a
garage
Across a
corner
As a
room
divider Along a wall
78 in.
(1981 mm)
G
B
E
48 in.
(1219 mm)
MINIMUM
24 in. (610 mm)
from fireplace opening to
any perpendicular wall
A
B
G
G
B
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Model # A B C D E F G
in. 72 47 7/8 89 1/8 44 5/8 20 3/8 63 1/8 28 1/2
mm 1829 1216 2264 1133 518 1603 724
BIR36
* 12 in. (305 mm) extra space
included for each outside air
connection. If outside air duct
has no bend, this dimension
may be reduced as long as
minimum clearances are met.
Consideration should be given to these factors before
deciding on a location.

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23 7
2. Locating Fireplace & Chimney
Location of the replace and chimney will a󰀨ect perfor-
mance.
• Install within the warm airspace enclosed by the building
envelope. This helps to produce more draft, especially
during lighting and die-down of the re.
• Installing the replace in a basement is not recommended.
• Penetrate the highest part of the roof. This minimizes
the e󰀨ects of wind loading.
• Locate termination cap away from trees, adjacent
structures, uneven roof lines and other obstructions.
• Minimize the use of chimney o󰀨sets.
• Consider the replace location relative to oor and ceiling
and attic joists.
• Take into consideration the termination requirements in
Section 5.
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
Not recommended in basement due
to high negative pressure concerns
that effect draft
Figure 2.3 Recommended Chimney Locations
• 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 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.

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/238
C. Tools and Supplies Needed
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
D. 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re-
place dry.
• Remove replace 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 benet.
E. Fireplace System Requirements
The Heatilator replace system requirements consist of
the following:
• Fireplace
- Molded brick panels (hearth panel Included with
replace, side and back panels sold separately)
- Firescreen (included with replace)
- Hearth Extension (sold separately)
- Grate (included with replace)
• Outside Air System
- Air Inlet Hood x2 (included with replace)
- Flex (required, sold separately
• Chimney System
- Attic insulation shield (included with replace)
- Chimney termination cap (sold separately)
• Non-combustible nish material

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/23 9
74 1/8 in.
(1883 mm)
3 3/4 in.
(95 mm)
70 3/4 in.
(1797 mm)
67 3/8 in.
(1711 mm)
61 7/8 in.
(1572 mm)
54 in.
(1372 mm)
38 in.
(965 mm)
5 1/2 in.
(140 mm)
5 in.
(129 mm)
16 1/8 in.
(408 mm)
6 7/8 in.
(175 mm)
11 1/8 in.
(282 mm)
Gas Line
Knockout
11 in.
(281 mm) diameter
11 in.
(281 mm)
27 1/2 in.
(699 mm)
15 1/2 in.
(394 mm)
31 1/8 in.
(790 mm)
74 ° TYP.
5 in.
(129 mm)
16 1/8 in.
(408 mm)
11 1/8 in.
(282 mm)
6 7/8 in.
(175 mm)
46 7/8 in.
(1191 mm)
36 in.
(914 mm)
Gas Line
Knockout
Outside Air
Outside Air
33 Framing and Clearances
A. Appliance Dimensions/Weight
Figure 3.1 Fireplace Dimensions
Model Pounds
BIR36-B 251
Appliance Weight Table

Heatilator • Birmingham 36-B Installation Manual • 4059-709 • Rev AB • 06/2310
(insulation)
Attic
Insulation
Shield
(ceiling)
(roof)
(attic)
(ceiling)
Ceiling Firestop
Offset/Return (secured
with hanger straps)
Storm Collar
Roof Flashing
1-1/2 in. (38 mm) to back &
sides of appliance
(except at nailing flanges
where it is 1/2 in. [13 mm])
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
Combustible Object
48 in.
1219 mm
B. Clearances
WARNING! Risk of Fire!
You must comply with all minimum air space clearances
tocombustiblesasspeciedinFigure3.2.DO NOT pack
required air spaces with insulation or other materials.
Framing or nishing material used on the front of, or in
frontof,thereplacecloserthantheminimumslistedmust
be constructed entirely of non-combustible materials (i.e.,
steel studs, concrete board, etc.). Failure to comply may
causere.
Figure 3.2 Clearances to Combustible Materials
Minimum Clearances to Combustibles
WITHIN ENCLOSURE AREA
Fireplace to backwall 1-1/2 in. (38 mm)
Fireplace to sidewall 1-1/2 in. (38 mm)
Top stando󰀨s to header 0 in. (0 mm)
Door opening to sidewall 24 in. (610 mm)
MANTEL
Mantel minimum height 22 in. (559 mm)
above opening
Maximum mantel depth 12 in. (305 mm)