HearthStone Green Mountain Insert 70 User Manual (English)

Questions and Answers:

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Hannah SchaeferAug 3, 2025
How to stop HearthStone Indoor Fireplace from smoking when opening the door?
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  Samantha RodriguezAug 3, 2025
  To prevent smoke from entering the room when you open the door of your HearthStone Indoor Fireplace, fully open the primary air control one minute before opening the doors, and ensure the bypass is open. Other causes may include a cold or blocked chimney, an oversized or undersized chimney, a chimney that is too short, air infiltration into the chimney, improper fuel, or multiple appliances connected to the flue. Address these issues by preheating the chimney, examining it for blockages, relining or replacing the chimney as needed, lengthening the chimney, sealing connections, using seasoned wood, and disconnecting other appliances.
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Melissa LaneAug 9, 2025
What to do if my HearthStone Indoor Fireplace is back-puffing or having gas explosions?
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  Jeremiah Wilkinson DDSAug 9, 2025
  To prevent back-puffing or gas explosions in your HearthStone Indoor Fireplace, fully open the primary air control one minute before opening the door and keep it fully open for a few minutes after reloading, ensuring the bypass door is open. Also, maintain a higher burn rate, install a chimney cap to prevent chimney down-draft, and empty the ash pan more frequently, while increasing the efficiency of burns and avoiding poor quality or green wood.
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Tiffany TorresAug 15, 2025
Why is my HearthStone Indoor Fireplace not producing enough heat?
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  Nathan JacksonAug 15, 2025
  If your HearthStone Indoor Fireplace isn't producing enough heat, make sure you're using air-dried wood with a high BTU content, and operate the insert at a higher burn rate. Other potential causes include a cold exterior chimney, a leaky stovepipe or chimney, too much heat loss from the house, and excessive ash build-up. Consider relining or insulating the chimney, replacing leaky components, adding insulation to your home, and emptying the ash pan more frequently using better quality wood.
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James ChambersAug 22, 2025
What to do if my HearthStone Indoor Fireplace has an uncontrolled or short burn?
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  Alicia BerryAug 22, 2025
  An uncontrolled or short burn in your HearthStone Indoor Fireplace can be caused by an unsealed or open door, excessive draft, an extra-long or oversized chimney, or high winds. Ensure the door is tightly closed or replace the gaskets, check the installation and operate at a low burn, install a stovepipe damper, shorten or reline the chimney, and install a chimney cap.
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James PierceAug 28, 2025
Why is the finish blistering on my HearthStone Indoor Fireplace?
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  Cody BellAug 28, 2025
  Blistering of the finish on your HearthStone Indoor Fireplace can occur due to over-firing or excessive draft. Avoid over-firing the insert by monitoring temperatures and only using seasoned wood. Also, check the draft and consider installing a damper, and operate the insert at a low burn range.