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WARNING: IF THE INFORMATION IN
THESE INSTRUCTIONS IS NOT
FOLLOWED EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING
PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch electrical switches; do not use
the phone in your building.
Immediately call your gas supplier from a
neighbor's phone. Follow your gas
supplier's instructions.
If you cannot reach your gas supplier, call
the fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
Sterling "G" B-Vent
Gas Fired B-Vent Room Heater
Owner's Manual
Operation & Installation Guide
AVERTISSEMENT: ASSUREZ-VOUS DE
BIEN SUIVRE LES INSTRUCTIONS
DONNÉ DANS CETTE NOTICE POUR
RÉDUIRE AU MINIMUM LE RISQUE
D'INCENDIE OU POUR ÉVITER TOUT
DOMMAGE MATÉERIEL, TOUTE
BLESSURE OU LA MORT.
Ne pas entresposer ni utiliser d'essence
ni'autrevaperurs ou liquides inflammables dans le
voisinage de cet apprareil ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
Ne pas tenter d'allumer d'appareil.
Ne touchez à aucun interrupteur. Ne pas vous servir
des téléphones se trouvant dans le batiment où
vous vous trouvez.
Appelez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du
fournisseur.
Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service dos incendies.
L'installation et service doit être exécuté par un
qualifié installer, agence de service ou le
fournisseur de gaz.
(Model 8521)
Sterling BV Model: 8521
Manual: 6400-40425
Revised: 10/21/09

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Summary of Contents for HearthStone 8521

  • Page 1 L’installation et service doit être exécuté par un Installation and service must be performed by a qualifié installer, agence de service ou le qualified installer, service agency or the gas fournisseur de gaz. supplier. Sterling BV Model: 8521 Manual: 6400-40425 Revised: 10/21/09...
  • Page 2 Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Intentionally Blank...
  • Page 3: Table Of Contents

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Table of Contents Introduction..........................3 Warnings - Cautions - Safety Information ................2 Unpacking and Inspection ....................4 ........................4 NPACK AND NSPECT FOR AMAGE Installation..........................5 Hearth Requirements............................5 ...........................6...
  • Page 4 Hearthstone Dealer. To own a Hearthstone is to make a statement - a statement of your appreciation and understanding of Manufactured and Warranted by: exceptional quality. Your Sterling is manufactured Hearthstone Quality Home Heating Products, Inc.
  • Page 5: Information Sheet

    Use this page to record all relevant information concerning the purchase, installation, and maintenance of your Sterling Model 8521 B -Vent heater. This information will facilitate servicing, purchase of replacement parts, and warranty claims (if necessary). Keep your original receipt in a safe place as proof of purchase.
  • Page 6: Warnings - Cautions - Safety Information

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent ARNINGS AUTIONS AFETY NFORMATION : THIS GAS APPLIANCE MUST BE circulation on, under or near this heater. INSTALLED MAINTAINED Clearances combustibles must QUALIFIED SERVICE PERSONNEL. maintained as specified elsewhere in this FAILURE TO PROPERLY INSTALL, ADJUST manual.
  • Page 7: Introduction

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent REPLACED PRIOR TO OPERATING THE ARNING UNIT. IF YOU BELIEVE THAT YOUR This unit is designed to burn either natural gas or STERLING IS NOT PERFORMING PROPERLY liquid propane as specified. Do not place candles IN ANY WAY WHATSOEVER, IMMEDIATELY on top or above the stove.
  • Page 8: Unpacking And Inspection

    The enameled cast iron (if applicable) The Sterling is packaged by Hearthstone to should be free of chips or cracks. If visible or withstand shipment without damage under most concealed damage is found or suspected, contact circumstances.
  • Page 9: Installation

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Installation Hearth Requirements The Sterling is a sophisticated vented gas fireplace heater. Qualified service personnel must The floor protection must meet one of the complete installation. Any attempt by unqualified following criteria.
  • Page 10: Clearances T O Combustibles

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent LEARANCES OMBUSTIBLES Vertical Exit Installations Using Single Wall Due to high surface and radiant temperatures, Stovepipe: the Sterling should be located out of traffic and away Parallel Setting - 6" (152-mm) rear wall-to- from furniture and draperies.
  • Page 11: Electrical Connections

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent LECTRICAL ONNECTIONS from the unit will immediately satisfy the thermostat Thermostat and turn the unit off. The Sterling can use a wall-mounted thermostat : Remove facade under ash lip for for operation.
  • Page 12: Venting /Chimney Requirements

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent ENTING HIMNEY EQUIREMENTS Normally Aspirated Chimneys Draft Hood/Down Draft Sensor/Spill The Sterling is a high efficiency gas heater. With Switch operating efficiencies as high as 80%, most heat...
  • Page 13: Gas Supply

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Gas Supply Gas Connection ACTORY EADY FOR PERATION All Sterlings are shipped from the manufacturer The gas supply line connection is made to the fully assembled and ready for natural gas or LP...
  • Page 14 Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent as listed in the Specifications. The manifold pressure is tested by connecting the manometer to the manifold pressure tap on the gas control valve (Figure 7). G as S upply...
  • Page 15: Log Placement Within Unit

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Log Placement Within Unit : Fragile! Handle the logs set with care. AUTION Always wear gloves and safety goggles while handling the logs set. REAR LOG Position the front and rear burner tubes in their cradles firmly.
  • Page 16: Lighting The Unit For The First Time

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Lighting the Unit for the First Time technician. Any force or attempt to repair may result Once the Sterling has been set in place and in fire or explosion.
  • Page 17: Lighting Instructions

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Lighting Instructions To Turn Off Gas To Appliance 1. STOP! Read the safety information above. 1. Set thermostat to OFF position, or select the “OFF” position of the on/off/T-stat switch.
  • Page 18: Initial Adjustments

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Initial adjustments Variable Output Control The gas control valve is equipped with a variable output control. This control varies the rate of heat produced by the unit by varying the gas pressure to the main burner tube.
  • Page 19 Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Pilot Adjustments Note too that the pilot light flame must properly engulf the thermopile so that the thermopile can The pilot light is preset by the manufacturer and generate sufficient milli-voltage (750mv) to power should not need adjustment.
  • Page 20: Daily Operation

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent AILY PERATION The Sterling gas-fired heater is easily operated unit back into service follow the lighting instructions by the homeowner once installed and adjusted by described elsewhere in this manual.
  • Page 21: Routine Maintenance And Care

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent OUTINE AINTENANCE AND elsewhere in this manual (Initial Adjustments: Pilot Sterling requires minimal routine Adjustment). maintenance and care. The unit should always be Turn the unit off by setting the cool and off when being cleaned or maintained.
  • Page 22: Optional Blower Fan

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent PTIONAL LOWER An optional blower fan (Item #95-57010) is Gas Requirements For Blower available from the dealer or manufacturer to boost heat output efficiency and improve air circulation The gas supply line connection is made to the within the room.
  • Page 23: Trouble Shooting

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent ROUBLE HOOTING Symptom Possible Cause Corrective Action A. Using the piezosparker, try to light the pilot. If it will not 1. Pilot will not A. Insufficient gas pressure, light, check the inlet gas pressure.
  • Page 24: Parts List

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent ARTS 1546-462 Top Stone 1546-462A Side Stone 1546-463 Front Side Stone 1546-464 Front Bottom Stone 2510-219RS Door 2510-303 Bottom Leg 2510-401 2510-403F Front Grill 2510-411 RF Door Frame...
  • Page 25: Specifications

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent PECIFICATIONS Liquid Propane ( Fuel requirements ATURAL Input Rating 40,000 40,000 Maximum Output (Btu/hr) 0-610 m 31,200 30,200 Minimum Input (Btu/hr) 0-610 m 21,200 22,000 Orifice Size (DMS) 0-610 m...
  • Page 26: Safety Label

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Safety Label LISTED GAS-FIRED VENTED FIREPLACE HEATER, RADIATEUR VENTILE MODEL NAME: Hearthstone Sterling VENTED GAS FIREPLACE HEATER NOT FOR USE WITH SOLID FUEL 8700- SERIAL # 8521- TESTED TO: ANSI Z21.88-2002 CSA 2.33-M02 VENTED GAS FIREPLACE HEATERS CAN/CGA - 2.17...
  • Page 27: Electrical Schematics

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent Electrical Schematics Wiring Color KEY: 50 60 70 80 90 HearthStone 50 70 90...
  • Page 28: Optional Blower

    Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent PTIONAL LOWER...
  • Page 29: Limited Warranties

    Stove (the “Purchase Date”). LIMITED LIFETIME WARRANTY Hearthstone warrants the following parts of the Stove against the following occurrences that result from defects in material and workmanship: I.All cast iron parts, including the cast iron heat exchanger – against breakage, cracking or burn- through.
  • Page 30 A defect in any part of the Stove if the Original Purchaser fails to comply with Hearthstone’s or a Dealer’s request to ship the part or the Stove to Hearthstone or a Dealer, as the case may be.
  • Page 31 Purchaser to either return the defective part, or the entire Stove (if needed), with shipping prepaid, to Hearthstone or a Dealer or allow a Dealer to make a service call at the place where the Stove is located. In the event the Original Purchaser refuses to allow a Dealer to make a service call, Hearthstone or a Dealer, as the case may be, will request that the Original Owner return the defective part, or the entire Stove (if needed), with shipping prepaid, to Hearthstone or a Dealer.
  • Page 32 Hearthstone Quality Home Heating Products , Inc. ODEL 8521 Sterling “G” B-Vent WARRANTY REGISTRATION The Original Purchaser may send a completed and signed Warranty Registration Form, which is enclosed in the Stove warranty packet, to the following address: Hearthstone Quality Home Heating Products, Inc.

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