HearthStone Green Mountain Insert 70 Owner's Manual
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HearthStone Green Mountain Insert 70 Owner's Manual

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Green Mountain Insert 70
(Model 8450)
Wood Fireplace Insert
OWNER'S MANUAL
Installation And
Operating Instructions
Safety tested according to ULC S628,
UL 737 and UL 1482 Standards
by an accredited laboratory
CONTACT LOCAL AUTHORITIES WITH
JURISDICTION (BUILDING
DEPARTMENT or FIRE OFFICIALS),
ABOUT PERMITS REQUIRED,
RESTRICTIONS AND INSTALLATION
INSPECTION IN YOUR AREA.
SAVE THIS OWNER'S MANUAL FOR FUTURE REFERENCE
PLEASE READ THIS ENTIRE OWNER'S MANUAL BEFORE YOU INSTALL AND USE YOUR
NEW GREEN MOUNTAIN INSERT 70 WOOD FIRPLACE INSERT.
If this room heater is not properly installed, a house fire may result.
To reduce the risk of fire, follow the installation instructions.
Failure to follow these instructions can result in property damage, bodily injury, or even death.
Conforms to UL Std. 1482 & 737
Certified to ULC Std. S628
Green Mountain Insert 70 (Model 8450)
Manual: 6400-41414
R: 08/05/19

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Summary of Contents for HearthStone Green Mountain Insert 70

  • Page 1 SAVE THIS OWNER’S MANUAL FOR FUTURE REFERENCE PLEASE READ THIS ENTIRE OWNER’S MANUAL BEFORE YOU INSTALL AND USE YOUR NEW GREEN MOUNTAIN INSERT 70 WOOD FIRPLACE INSERT. If this room heater is not properly installed, a house fire may result.
  • Page 2 CO Emissions: The Green Mountain Insert 70 has an average CO emission rate over all burn categories of 89.4 g/hr. Wet wood or unapproved fuel described above can greatly affect the emissions of a wood burning fireplace insert.

  • Page 3: Table Of Contents

    ............................33 EMOVAL NSTRUCTIONS ILLUSTRATED PARTS LIST ....................34 & O ....................37 EPLACEMENT PTIONAL CCESSORIES TROUBLESHOOTING ......................38 SAFETY LABEL ........................40 LIMITED WARRANTY ......................41 Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 4: Introduction

    However, you should not consider your Green Mountain Insert 70 the sole heat source for Contact your dealer for any necessary warranty your home. service.
  • Page 5 Existing Masonry or Factory-built Chimneys When installed and operated as described in and Vents, or CAN/ULC-S640, Standard for these instructions, the Green Mountain Insert 70 Lining Systems for New Masonry Chimneys. wood insert is suitable for use in residential installations.
  • Page 6 If the bill pulls out without any chimney fire. resistance, then your fireplace insert’s door is not sealing properly. To tighten the seal, adjust Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 7: Specifications

    10 to 25 lbs. per cubic foot depending on type of wood, moisture content, packing density and other factors. Figure 1 – Green Mountain Insert 70 Dimensions Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 8: Installation

    An inspection of the fireplace should include the following: EATING CONDITION OF THE FIREPLACE AND CHIMNEY: Your new Green Mountain Insert 70 wood insert is  The masonry fireplace and chimney should be a space heater, which means it is intended to heat...

  • Page 9: Certification Label

    Figure 2 - Label Location Since the information given on the certification label attached to the appliance always overrides the information published in any other media, it is Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 10: Installation Of A Combustible Mantel Shelf

    R value equal or greater than 1.00 and shall extend 23" (584 mm) in front of the unit. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 11: Green Mountain Insert 70 (Model

    Jacket fireplace facing extend at least 16" (406 mm in USA) or 18" (457 2" or 4" mm in Canada) in front of the unit. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)
  • Page 12 Cement mortar 5.00 Common brick 5.00 Face brick 9.00 0.11 14.3 – 20.00 0.07 – 0.05 Marble Ceramic tile 12.5 0.008 Concrete 1.050 0.950 Mineral wool 0.320 3.120 Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 13: Minimum Masonry Opening

    5" (127 mm) chimney connectors to combustibles such as walls and ceilings when installing the fireplace insert near 12" (305 mm) combustible surfaces. Figure 8 – Clearance to Combustibles Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 14: Installing The Insert

    4. Insert the leveling bolts. There are 2 nuts welded to the outside of the firebox, one in each of the lower rear corners. Thread the included leveling bolts into the nuts. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)
  • Page 15 It is very important not to disconnect the wires. b. Be careful not to pinch the blower switch wires. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 16: Outside Air Supply

    Some building officials restrict firebox wall. vertical rise in the duct’s termination. HearthStone d. Install the rear stones, inserting the top recommends the termination be at the same level, of each stone behind the retaining steel or lower than the air intake on the fireplace insert.
  • Page 17 Figure 9 – Outside Air Inlet The pipe must be HVAC type, insulated, and must comply with ULC S110 and/or UL 181, Class 0 or Class 1. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 18: The Venting System

    Use chimney liners listed UL 1777, ULC S635 or CAN/ ULC S640. In order to connect the insert to the liner, refer to the section LINER CONNECTION. Figure 11 – Block Off Plate 1 Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 19: Liner Connection

    The dealer may offer a liner fastening system (HearthStone accessory #94-67500), sold separately. Follow the installation instructions provided with the liner fastening system. Figure 13 – Liner Installation Figure 15 – Liner Fastening System Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 20: Minimum Chimney Clearances

    60 cm (2 ft.) higher than any roof line or obstacle within a horizontal distance of 3 m (10 ft.). Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 21: Chimney Location

    First, the chimney runs up the outside of the house, so the air in it is colder and denser than the warm Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 22: Supply Of Combustion Air

    Contrary to once each year. commonly expressed concerns, almost all tightly sealed new houses have enough natural leakage to Figure 20 – Supply of Combustion Air Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 23: Operation

    OPERATION Once your Green Mountain Insert 70 is installed, you PRIMARY AIR CONTROL: The primary air control are ready to light a fire. lever is located under the ash lip. The primary air control allows you to regulate the amount of air Every installation, season’s firewood, and operator’s...

  • Page 24: Choosing Firewood

    Burn only natural firewood (known as cordwood) in automatically when the insert is hot enough and it the Green Mountain Insert 70 Model 8450 Wood will stop when the insert has cooled down. You can Heater. This fireplace insert is not designed to burn also set the switch to the manual position (1) to other fuels.

  • Page 25: Buildinga Fire

    As you might expect, green wood candles, pet hair, dust, adhesives, a new carpet, and burns poorly. You must season green wood before Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 26: Normal Operation

    6) Use the primary air control to regulate the fire to reach safe break-in temperatures. desired rate of burn. Pull the handle left for a higher burn rate, and pull the handle right for a Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 27: Over -Fire Caution

    Over-firing means the fireplace insert is operating at container. Do not pour water into the container. temperatures above normal temperatures reached Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 28: Fire Screen

    Hold the fire screen by the two handles and bring it opening close to the door Warning: Never leave the insert unattended while in use with the fire screen. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 29: Maintenance

    Contact your dealer Replacement glass is available through your local for the name of a certified chimney sweep in your dealer. area (your dealer may be a certified sweep!). Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 30: Glass And Blower Replacement Procedures

    The glass will break at this point if not positioned correctly. 12. Apply a light film of anti-seize lubricant on the door’s hinge pins if needed. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)
  • Page 31 The switch plate is removed by way of two fasteners on the inside-left of the iron frame as shown. Figure 32 – Remove Switch Plate Figure 33 – Remove Switch Plate Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 32: Door Adjustment

    9" X 4.5" X 1.25" 9" X 4.25" X 1.25" 9" X 2" X 1.25" 6.5" X 4.5" X 1.25" Spacer Channel Figure 36 – Secondary Air Tubes 2 Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 33: Removal Instructions

    Figure 39 – Insert Removal Figure 38 – Secondary Air Tubes 4 Note that secondary air tubes (B) can be replaced without removing the baffle board (A). Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 34: Illustrated Parts List

    Illustrated Parts List Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)
  • Page 35 LOCK WASHER, ¼, SPLIT 33 4500-1680 SCREW, MACHINE, ¼-20 X 3-1/4”, ROUND, SLOT 34 5450-010 DOOR HINGE, UPPER 35 5450-011 DOOR HINGE, LOWER 36 4700-0850 SPACER, HINGE Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)
  • Page 36 75 9450-00 (KIT) SOAPSTONE: 4 1/4" X 9'' X 1 1/4'' 76 9450-00 (KIT) SOAPSTONE: 2" X 9" 1 1/4" 77 PL65514 SECONDARY AIR TUBE 78 21389 C-CAST BAFFLE 20" X 12 1/2" X 1 1/4" Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 37: Replacement Kits & Optional Accessories

    94-73500 FRONT DOOR LATCH KIT 94-76500 BAFFLE KIT 94-57500 BLOWER KIT Refer to the Illustrated Parts list for further detail about insert components, available online at www.hearthstonestoves.com. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 38: Troubleshooting

    Briefly partially open a window in the room fans, or cook stove exhaust fans. with the insert to help establish a draft quickly. 2. TALL TREES OR BUILDINGS: Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)
  • Page 39 Do not over-fire the insert. Monitor insert temperatures. Use seasoned FINISH wood only. Excessive Draft Check the DRAFT. A damper may be required. Operate the insert at a LOW BURN range. Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 40: Safety Label

    Safety Label Hearthstone Quality Home Heating Products, Inc ® Green Mountain Insert 70 (Model 8450)

  • Page 41: Limited Warranty

    ) year after the Purchase Date, HearthStone will pay for warranty labor performed by an authorized Dealer at HearthStone’s published labor rates in effect at the time the labor is performed only if the appliance is installed by an authorized dealer or their designated representative. Otherwise or thereafter, the Original Purchaser is responsible for the cost of labor.
  • Page 42 HearthStone or an authorized Dealer, as the case may be. Notwithstanding any other provision of this document, in no event will HearthStone pay for any Dealer fees or other fees for pick up or delivery of the appliance returned for repair; the Original Purchaser shall be responsible for any such fees.
  • Page 43 Dealer on behalf of HearthStone, as the case may be, will instruct the Original Purchaser to either return the defective part, or the entire appliance (if requested), to the Dealer or HearthStone or allow a Dealer to make a service call at the place where the appliance is located. HearthStone may require that a digital picture be provided to support the claim.

This manual is also suitable for:

8450

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