Monessen BUF42R User Manual
Installation & Owner’s Manual
Installation, Care and Operation
INSTALLER: Leave this manual with party responsible for use and operation.
OWNER: Retain this manual for future reference.
NOTICE: DO NOT discard this manual!
Model(s):
BUF36, BUF36-R
BUF42, BUF42-R
WARNING: If the information in these
instructions is not followed exactly, a re
or explosion may result causing property
damage, personal injury, or death.
• DO NOT store or use gasoline or other am-
mable vapors and liquids in the vicinity of this
or any other appliance.
DO NOT overre. Overring will void your
•
warranty.
• Comply with all minimum clearances to combustibles as specied. Failure to comply may
cause house re.
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.
VENT FREE FIREBOX
Carefully review the instructions supplied
with the decorative type unvented room
heater for the minimum fireplace size
requirement.
DO NOT INSTALL AN APPLIANCE IN THIS
FIREBOX UNLESS THIS FIREBOX MEETS
THE MINIMUM DIMENSIONS REQUIRED
FOR THE INSTALLATION.
Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
Installation and service of this appliance should
be performed by qualied personnel. Hearth
& Home Technologies recommends HHT
Factory Trained or NFI certied professionals.
1
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
Installation Standard Work Checklist 3
1 Welcome
A. Congratulations 3
B. LIMITED LIFETIME WARRANTY 4
2 Important Safety and Operating Information 5
3 General Installation Information
Before You Start 7
Check Parts 7
Tools Needed for Installation 7
4 Firebox and Framing Dimensions
Dimensions 8
5 Hearth Dimensions and Firebox Locations
Hearth Dimensions 9
Firebox Locations 9
6 Clearances 10
7 Fireplace, Canopy and Gas Line Installation 12
8 Combustion Air 14
Install Model AK22 Combustion Air Assembly 15
9 Optional Equipment
Forced Air Kit 16
10 Service Parts
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Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
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.
Customer:
Lot/Address
Model (circle one): BUF36 BUF42
BUF36-R BUF42-R
Date Installed:
Location of Fireplace:
Installer:
Dealer/Distributor Phone #
Serial #:
WARNING! Risk of Fire or Explosion! Failure to install fireplace acording to these instructions can lead to a fire or
explosion.
Fireplace Install
Wiring has been installed if necessary.
Verified clearances to combustibles. (Pg. 11)
Fireplace is leveled and secured. (Pg. 13)
Hearth extension size/height decided. (Pg. 12)
Outside air kit installed. (Pg 15) Optional
Finishing
Combustible materials not installed in non-combustible areas.
Verified all clearances meet installation manual requirements.
Mantels and wall projections comply with installation manual requirements.
Hearth extension installed per manual requirements.
Fireplace Setup
All packaging and protective materials removed.
Refractory installed correctly. (Optional)BUF36 & BUF42
Firescreen installed properly.
Manual bag and all of its contents are removed from the fireplace and given to the party
responsible for use and operation.
Blower kit installed properly. (Optional)
YES IF NO, WHY?
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your file.
• That this checklist remain visible at all times on the fireplace until the installation is complete.
Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed:
Comments communicated to party responsible
__________________________ by ______________________on _________
(Builder/Gen. Contractor) (Installer) (Date)
4600-902 • Rev B • 1/17
Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
3
Welcome
1
Read this manual before installing or operating this replace.
Please retain this manual for future references.
A. Congratulations
Congratulations on selecting a Monessen Hearth gas rebox. It is designed to provide the utmost in safety, reliability,
and efciency.
As the owner of a new replace, you'll want to read and
carefully follow all of the instructions contained in this manual. Pay special attention to all Cautions and Warnings.
Local Dealer Information
This manual should be retained for future reference. We
suggest that you keep it with your other important documents and product manuals.
Your new Monessen vent-free replace will give you years
of durable use and trouble-free enjoyment. Welcome to the
Monessen family of replace products!
Monessen is a registered trademark of Hearth & Home
Technologies.
DEALER: Fill in
your name, address,
phone and email
information here and
replace information
below.
Fireplace Information:
Brand: ________________________________________________ Model Name: ___________________________
Serial Number: __________________________________________ Date Installed: __________________________
Dealer Name: ________________________________________________________
Address: ____________________________________________________________
____________________________________________________________
Phone: _____________________________________________________________
Email: _____________________________________________________________
4
Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
B. LIMITED LIFETIME WARRANTY
The following components are warranted for life to the original owner, subject of proof of purchase:
Firebox, and Combustion Chamber.
BASIC WARRANTY
Monessen warrants the components and materials in your gas appliance to be free from manufacturing and material defects for a period of two years from date of installation. After installation,
if any of the components manufactured by Monessen in the appliance are found to be defective in
materials or workmanship, Monessen will, at its option, replace or repair the defective components
at no charge to the original owner. Monessen will also pay for reasonable labor costs incurred
in replacing or repairing such components for a period of two years from the date of installation.
Any products presented for warranty repair must be accompanied by a dated proof of purchase.
This Limited Lifetime Warranty will be void if the appliance is not installed by a qualied installer
in accordance with the installation instructions. The Limited Lifetime Warranty will also be void if
the appliance is not operated and maintained according to the operating instructions supplied with
the appliance, and does not extend to: (1) rebox/burner assembly damage by accident, neglect,
misuse, abuse, alteration, negligence of others, including the installation thereof by unqualied installers, (2) the costs of removal, re-installation or transportation of defective parts on the
appliance; or, (3) incidental or consequential damage. All service work must be performed by an
authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of
merchantability of tness for purpose and of all other obligations or liabilities. Monessen does not
assume for it any other obligations or liability in connection with the sale or use of the appliance.
In states that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect damage, those limitations of exclusions may not apply to you. You may also have
additional rights not covered in this Limited Lifetime Warranty.
Monessen reserves the right to investigate any and all claims against the Limited Lifetime Warranty
and decide upon method of settlement.
IF WARRANTY SERVICE IS NEEDED
1. Contact your supplier. Make sure you have your warranty, your sales receipt and the model/
serial number of your Monessen product.
2. DO NOT ATTEMPT TO DO ANY SERVICE WORK YOURSELF.
Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
5
Important Safety and Operating Information
2
INSTALLER
Please leave these instructions with the appliance.
WARNING!
• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from re, burns,
explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the replace. Avoid any drafts that alter burner ame patterns.
• Do not use a blower insert, heat exchanger insert or other accessory, not approved for
use with this heater where applicable.
1. Due to high temperatures, the rebox should be
located out of trafc and away from furniture and
draperies.
2. Children and adults should be alerted to the hazard
of high surface temperature and should stay away
to avoid burns or clothing ignition.
3. Young children should be carefully supervised when
they are in the same room with the rebox.
4. Do not place clothing or other ammable material
near the replace when the rebox is in use.
5. Any safety screen or guard removed for servicing,
must be replaced prior to operating a heater within
the rebox.
6. Installation and repair should be done by a qualied
service person.
7. To prevent malfunction and/or sooting, an unvented
gas heater/rebox should be cleaned at least annually by a professional service person. More frequent
cleaning may be required due to excessive lint from
carpeting, etc. It is imperative that control compartments, burners and circulating air passageways be
kept clean.
8. CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the u with
headaches, dizziness and/or nausea. If you have these
signs, obtain fresh air immediately. Have the heater
serviced as it may not be operating properly.
9. The installation must conform with local codes or, in
the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.l/NFPA54.
10. This unit complies with ANSI Z21.91 ventless rebox
enclosures for gas-red unvented decorative room
heaters.
11. Do not install the unvented heater in a bathroom.
12. Do not install the unvented heater in a bedroom unless
the maximum input rating is equal to or less than
10,000 Btu/hr.
OWNER
Please retain these instructions for future reference
13. Correct installation of the ceramic ber logs, proper
location of the heater, and annual cleaning are necessary to avoid potential problems with sooting. Sooting,
resulting from improper installation or operation, can
settle on surfaces outside the replace. See log placement instructions for proper installation.
14. Avoid any drafts that alter burner ame patterns. Do not
allow fans to blow directly into replace. Do not place
a blower inside burn area of rebox. Ceiling fans may
create drafts that alter burner ame patterns. Sooting
and improper burning will occur.
15. CAUTION: Candles, incense, oil lamps, etc. produce
combustion byproducts including soot. Vent-free
appliances will not lter or clean soot produced by
these types of products. In addition, the smoke and/
or aromatics (scents) may be re-burnt in the vent-free
appliance which can produce odors. It is recommended
to minimize the use of candles, incense, etc. while the
vent-free appliance is in operation.
16. An unvented gas-red heater uses air (oxygen) from
the room in which it is installed. Provisions for adequate
combustion and ventilation air must be provided. See
installation guidelines.
17. Keep room area clear and free from combustible materials, gasoline and other ammable vapors and liquids.
18. Unvented gas heaters are a supplemental zone heater.
They are not intended to be a primary heating appliance.
19. Unvented gas heaters emit moisture into the living
area. In most homes of average construction, this
does not pose a problem. In houses of extremely
tight construction, additional mechanical ventilation is
recommended.
20. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, lms or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
as they are burned off during the initial operation of the
appliance; possibly causing headaches, or eye or lung
irritation. This is a normal and temporary occurrence.
.
Continued on page 7
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Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
Continued from page 6
The initial break-in operation should last two to three
hours with the burner at the highest setting. Provide
maximum ventilation by opening windows or doors to
allow odors to dissipate. Any odors remaining after this
initial break-in period will be slight and will disappear
with continued use.
21. Input ratings are shown in BTU per hour and are for
elevations up to 2,000 feet. For elevations above 2,000
feet, input ratings should be reduced 4 percent for each
1,000 feet above sea level. Refer to the National Fuel
Gas Code.
22. The appliance and its main gas valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa).
23. The appliance must be isolated from the gas supply
piping system by closing its equipment shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).
24. Do not use this room heater if any part has been under
water. Immediately call a qualied service technician
to inspect the room heater and to replace any part of
the control system and any gas control which has been
under water.
25. Never burn solid fuels in a replace where a unvented
room heater is installed.
26. Always have a replace screen in place when the
appliance is in operation, and unless other provisions
for combustion air are provided, the screen shall have
an opening(s) for induction of combustion air.
27. Do not ll spaces around the rebox with insulation or
other materials. These spaces must be maintained to
prevent the rebox from coming in contact with combustible materials.
WARNING!
Do not attempt to burn solid wood fuels, vented
gas log sets, or any other combustible in this
unvented rebox. Also, do not install a ventfree gas log set in this rebox if the minimum
clearance and height requirements of the log
set are too large for the rebox.
Notice: Illustrations shown in this manual reect
“typical” installations with nominal dimensions and
are for design and framing reference only. Actual
installations may vary due to individual design
preferences. However, always maintain minimum
clearances to combustible materials and do not
violate any specic installation requirements.
WARNING!
Never connect unit to private (non-utility)
gas wells. This gas is commonly known as
wellhead gas.
Monessen • BUF36/42 Installation and Operating Manual • 4600-900 • Rev C • 05/17
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