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GCUF/GRUF Vent-Free Fireboxes

Monessen • GCUF/GRUF Owner Manual • 71D0530 • Rev G • 01/20

WARRANTY CONDITIONS:

•  This warranty only covers HHT appliances that are purchased through an HHT authorized dealer or distributor.  A list of HHT 

authorized dealers is available on the HHT branded websites.

•  This warranty is only valid while the HHT appliance remains at the site of original installa

 on.

•  This warranty is only valid in the country in which the HHT authorized dealer or distributor that sold the appliance resides.
•  Contact your installing dealer for warranty service.  If the installing dealer or distributor is unable to provide necessary parts, 

contact the nearest HHT authorized dealer or supplier.  Addi

 onal service fees may apply if you are seeking warranty service from 

a dealer other than the dealer from whom you originally purchased the product. 

•  Check with your dealer in advance for any costs to you when arranging a warranty call.  Travel and shipping charges for parts are not 

covered by this warranty.

•  Limited Catalyst Warranty

o  For wood burning products containing a catalyst, the catalyst will be warranted for a six-year period to the original purchaser at 

the site of original installa

 on.  The purchaser must provide the name, address, and telephone number of the loca

 on where 

the product is installed, proof of original purchase date, date of failure, and any relevant informa

 on regarding the failure of the 

catalyst.

WARRANTY EXCLUSIONS:

This warranty does not cover the following:
•  Changes in surface 

 nishes as a result of normal use.  As a hea

 ng appliance, some changes in color of interior and exterior surface 

 nishes may occur.  This is not a 

 aw and is not covered under warranty.

•  Damage to printed, plated, or enameled surfaces caused by 

 ngerprints, accidents, misuse, scratches, melted items, or other 

external sources and residues le

  on the plated surfaces from the use of abrasive cleaners or polishes.

•  Repair or replacement of parts that are subject to normal wear and tear during the warranty period are not covered.  These parts 

include: paint, wood and pellet gaskets, 

 rebricks, grates, 

 ame guides, ba

 eries and the discolora

 on of glass.  

•  Expansion, contrac

 on, or movement of certain parts causing noise.  These condi

 ons are normal and complaints related to this 

noise are not covered by this warranty.

•  Damages resul

 ng from: (1) failure to install, operate, or maintain the appliance in accordance with the installa

 on instruc

 ons, 

opera

 ng instruc

 ons, and lis

 ng agent iden

 

 ca

 on label furnished with the appliance; (2) failure to install the appliance in 

accordance with local building codes; (3) shipping or improper handling; (4) improper opera

 on, abuse, misuse, con

 nued opera

 on 

with damaged, corroded or failed components, accident, or improperly/incorrectly performed repairs (5) environmental condi

 ons, 

inadequate ven

 la

 on, nega

 ve pressure, or dra

 ing caused by 

 ghtly sealed construc

 ons, insu

  cient make-up air supply, or 

handling devices such as exhaust fans or forced air furnaces or other such causes; (6) use of fuels other than those speci

 ed in 

the opera

 on instruc

 ons; (7) installa

 on or use of components not supplied with the appliance or any other components not 

expressly authorized and approved by HHT; (8) modi

 ca

 on of the appliance not expressly authorized and approved by HHT in 

wri

 ng; and/or (9) interrup

 ons or 

 uctua

 ons of electrical power supply to the appliance.

•  Non-HHT ven

 ng components, hearth connec

 ons or other accessories used in conjunc

 on with the appliance.

•  Any part of a pre-exis

 ng 

 replace system in which an insert or a decora

 ve gas appliance is installed.

•  HHT’s obliga

 on under this warranty does not extend to the appliance’s capability to heat the desired space.  Informa

 on is provided 

to assist the consumer and the dealer in selec

 ng the proper appliance for the applica

 on.  Considera

 on must be given to the 

appliance loca

 on and con

 gura

 on, environmental condi

 ons, insula

 on and air 

 ghtness of the structure.

This warranty is void if:

•  The appliance has been over-

 red, operated in atmospheres contaminated by chlorine, 

 uorine, or other damaging chemicals.  

Over-

 ring can be iden

 

 ed by, but not limited to, warped plates or tubes, deforma

 on/warping of interior cast iron structure or 

components, rust colored cast iron, bubbling, cracking and discolora

 on of steel or enamel 

 nishes.  

•  The appliance is subjected to prolonged periods of dampness or condensa

 on.

•  There is any damage to the appliance or other components due to water or weather damage which is the result of, but not limited 

to, improper chimney or ven

 ng installa

 on.

LIMITATIONS OF LIABILITY

•  The owner’s exclusive remedy and HHT’s sole obliga

 on under this warranty, under any other warranty, express or implied, or in 

contract, tort or otherwise, shall be limited to replacement, repair, or refund, as speci

 ed above.  In no event will HHT be liable for 

any incidental or consequen

 al damages caused by defects in the appliance.  Some states do not allow exclusions or limita

 on of 

incidental or consequen

 al damages, so these limita

 ons may not apply to you.  This warranty gives you speci

 c rights; you may also 

have other rights, which vary from state to state.  EXCEPT TO THE EXTENT PROVIDED BY LAW, HHT MAKES NO EXPRESS WARRANTIES 

OTHER THAN THE WARRANTY SPECIFICED HEREIN.  THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE 

EXPRESSED WARRANTY SPECIFIED ABOVE.

Page 2 of 2

4021-645K  1/20

Summary of Contents for GCUF Series

Page 1: ...your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier For use with a listed gas fired unvented decorative room heater not to exceed 40 000 BTU hr Do Not Build a Wood Fire Carefully review the instructions supplied with the decorative type unvented room heater for the minimum fireplace size requirement DO NO...

Page 2: ...ilure to follow these instructions may result in a possible fire hazard and will void the warranty Important Safety Information 3 General Installation Information 5 Before You Start 5 What You Will Need for Installation 5 Firebox and Framing Dimensions 6 Hearth Dimensions 7 Firebox Location 7 Minimum Clearances 8 Firebox Framing 9 Fireplace Installation 10 Canopy Installation 10 Gas Line Installat...

Page 3: ... temporary occurrence IMPORTANT SAFETY INFORMATION 8 CARBON MONOXIDE POISONING Early signs of carbon monoxide poisoning are similar to the flu 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...

Page 4: ... is installed 26 Always have a fireplace 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 fill spaces around the firebox with insulation or other materials These spaces must be maintained to prevent the firebox from coming in contact with com bustible materials...

Page 5: ...U WILL NEED FOR INSTALLATION TOOLS and BUILDING SUPPLIES Phillips screwdriver Square Framing materials Hammer Saw and or saber saw Tee joint Level Pipe wrench Measuring tape Pliers Electric drill and bits Fireplace surround materials noncombustible Caulking material noncombustible Wall finishing materials Piping complying with local codes Pipe sealant approved for use with propane L P G resistant ...

Page 6: ...ms I 1 6 1 5 N 21 E H J L G K 34 Ref GCUF32C GRUF32C GCUF36C GRUF36C GCUF42C GRF42C A 37 41 47 B 32 36 42 C 16 18 18 D 29 32 38 E 185 8 205 8 205 8 F 233 8 273 8 333 8 G 131 4 153 4 153 4 H 18 175 8 175 8 I 297 8 34 40 J 71 8 93 4 93 4 K 8 81 4 81 4 L 23 4 21 4 21 4 M 371 4 411 4 471 4 N 35 35 35 O 151 2 171 2 171 2 P 433 4 483 4 53 Q 613 4 687 8 747 8 R 307 8 341 2 371 2 Figure 1 Firebox and Fram...

Page 7: ...must not be affected by drafts caused by kitchen exhaust fans ceiling fans return air registers for forced air furnaces air conditioners windows or doors Installation must provide adequate ventilation and com bustion air Location should be out of high traffic or windy or drafty areas DO NOT INSTALL WHERE CURTAINS FURNITURE CLOTHING OR OTHER FLAMMABLE OBJECTSARE LESS THAN 42 FROM FRONT OF HEATER Ne...

Page 8: ... 4 Clearance and Height Requirements 4 Mantel clearances The canopy supplied with the unit must be installed If a combustible mantel is installed it must meet the clearance requirements as shown in Figure 5 However if lower mantel height is desired refer to Page 14 Figure 6 NOTE The Monessen Barrington Cabinet Mantel Model series BWC300 BWC400 and BWC500 are specially designed to comply with all m...

Page 9: ... enclosure The classification noncombustible material includes but is not limited to stone brick and mortar Noncombustibles are safe to overlay the black painted metal face including radiant plates and do not pose a fire hazard Any noncom bustible finish material must not extend past or interfere with the fireplace opening The classification combustible material includes but is not limited to plyw...

Page 10: ...anopy is level and secure Figure 11 Installing Canopy FP2451 install canopy Screws Canopy FP2451 WARNING The firebox canopy must not be modified or replaced with a canopy that may be provided with the unvented decorative room heater WARNING Close fireplace screen panel before operating a decorative type unvented room heater 1 Bend out the nailing flanges located on each side of the firebox 2 Slide...

Page 11: ...r must be used on all propane L P G heaters in addition to the regulator fitted to the heater to reduce the supply tank pressure to 13 w c maximum Any copper tubing used to supply propane L P G from the tank must be internally tinned NOTE When connecting propane L P G vent free room heaters you must use pipe sealant resistant to propane L P G IMPORTANT Hold heater regulator with a wrench to preven...

Page 12: ... inlet at least 3 away from any ap pliance vent terminal 6 Avoid extremely long runs and numerous turns in the duct leading from the fireplace to the combustion air assembly These conditions increase the resistance to the free flow of air through the duct Refer to Figures 12 through 15 for methods of installing the outside air for combustion assemblies FP2459 OA basement install Above Snow Level G...

Page 13: ...he fireplace wall FP1900 OA start collar 8 08 Figure 16 Attach Outside Air Starting Collar and Insulation Ring to Left Side of Fireplace Insulation Ring AK4 Starting Collar Sheet Meal Screws Left Side of Fireplace Shorter End of Air Starting Collar 4 Attach outside duct to starting collar with duct clamp or screws Figure 17 5 Cut a 6 inch diameter opening for model AK4 in the outside wall covering...

Page 14: ...the surface of the wall NOTE If the wall covering is brick or stone use appropriate masonry fasteners If necessary splice the duct Use a model 403 duct connector to splice duct sections INSTALL MODEL 403 DUCT CONNECTOR 1 Push insulation back approximately 2 from the end of each duct 2 Slip each duct over duct connector until an equal length of connector extends into each duct 3 Place duct clamp ov...

Page 15: ...pewter louver kits may be installed in place of the factory installed black louvers Refer to installation instructions provided with the brass or pewter louvers OPTIONAL TRIM Optional trim kits can be used with unit when installed as a free standing fireplace with wood surround FIREBRICK Optional firebrick kits can be installed See installation instructions provided with kit OPTIONAL WIDE CANOPY T...

Page 16: ...esting service parts from your dealer or distributor Stocked at Depot ITEM DESCRIPTION COMMENTS PART NUMBER 1 Canopy Black Paint 71D0023K Texture Paint 71D0023TK 2 Screen Panel Qty 2 req SRV61D0001 3 Screen Rod Qty 2 req 26D0138K 4 Black Louver Assembly GCUF Only Top 54D0900TK Bottom 54D0901TK Accessories 5 Blower w Rheostat BLOTMC 6 Black Trim Curved Design BLTK32C Black Trim Kit BLMTK32C 7 1 Ref...

Page 17: ...esting service parts from your dealer or distributor Stocked at Depot ITEM DESCRIPTION COMMENTS PART NUMBER 1 Canopy Black Paint 71D0011K Texture Paint 71D0011TK 2 Screen Panel Qty 2 req SRV61D0001 3 Screen Rod Qty 2 req 26D0132K 4 Black Louver Assembly GCUF Only Top 54D0902TK Bottom 54D0903TK Accessories 5 Blower w Rheostat BLOTMC 6 Black Trim Curved Design BLTK36C Black Trim Kit BLMTK36C 7 1 Ref...

Page 18: ...vice parts from your dealer or distributor Stocked at Depot ITEM DESCRIPTION COMMENTS PART NUMBER 1 Canopy Black Paint 71D1000K Texture Paint 71D1000TK 2 Screen Panel Qty 2 req SRV61D0003 3 Screen Rod Qty 2 req 26D0133K 4 Black Louver Assembly GCUF Only Top 54D0904TK Bottom 54D0905TK Accessories 5 Blower w Rheostat BLOTMC 6 Black Trim Curved Design No longer available BLTK42C Black Trim Kit BLMTK4...

Page 19: ...hever occurs earlier However the warranty shall commence no later than 24 months following the date of product shipment from HHT regardless of the installaƟon or occupancy date The warranty period for parts and labor for covered components is produced in the following table The term Limited LifeƟme in the table below is de ned as 20 years from the beginning date of warranty coverage for gas applia...

Page 20: ...codes 3 shipping or improper handling 4 improper opera on abuse misuse con nued opera on with damaged corroded or failed components accident or improperly incorrectly performed repairs 5 environmental condi ons inadequate ven la on nega ve pressure or dra ing caused by ghtly sealed construc ons insufficient make up air supply or handling devices such as exhaust fans or forced air furnaces or other s...

Page 21: ...21 GCUF GRUF Vent Free Fireboxes Monessen GCUF GRUF Owner Manual 71D0530 Rev G 01 20 This page intentionally left blank ...

Page 22: ...22 GCUF GRUF Vent Free Fireboxes Monessen GCUF GRUF Owner Manual 71D0530 Rev G 01 20 Monessen a brand of Hearth Home Technologies 7571 215th Street West Lakeville MN 50044 www monessenhearth com ...

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