Clean Combustion

Stay warm and make the most of your wood pile by burning a HearthStone wood stove. Our TruHybrid™ system delivers HHV efficiencies up to 81%, low particulate emissions, and burn times up to 30 hours*.

Easy Operation

ALL of our wood stoves use a fully adjustable system that allows you to burn high and hot, or low and slow to suit your heating needs while maintaining efficiency.

There are only 2 controls involved in burning our fully adjustable catalytic wood stoves. Once you understand what each control does, it’s a simple operation.

  1. Adjust the fire using the air control
    • The air control allows you to regulate the amount of air entering the firebox.
    • Open the air control to allow more air into the firebox, making the stove burn faster and hotter. Always fully open the air control when starting a fire.
    • Close the air control to allow less air into the firebox, making the stove burn slower.
    • The air control is usually located below the ash lip. Look in the owner’s manual for each product to verify how to open and close the air control. Some move left-to-right, some are push-pull.
hearthstone wood stove air control location
  1. Engage the catalyst using the bypass handle
    • Start the stove with the bypass handle in the bypass position. This allows the smoke to flow up the chimney without passing through the catalytic combustor.
    • Engage the catalyst when the stove is up to temperature.
    • As the stove heats up, check the catalyst probe, which measures the temperature inside the stove. When the needle reaches the ‘catalyst active’ zone, turn the bypass handle in the ‘engage catalyst’ direction. Your stove is now in its cleanest and most efficient operating mode.
    • The plate behind the handle indicates which direction to engage or bypass the catalyst.
    • When you add more wood to the fire, momentarily move the handle to ‘bypass’ to keep smoke from coming into the room.
    • You can leave the catalyst engaged throughout long, slow overnight burns even though the temperature will eventually drop out of catalytic range.
    • The bypass handle is usually located on one side of the stove.

Our Catalysts

The TruHybrid™ System promotes longer catalyst life and fewer maintenance concerns than other catalytic wood burning products.

Catalyst position: Our catalysts are positioned above and away from the front of the baffle. They are positioned after the primary and secondary combustion, so they are always working on pre-cleaned exhaust. They are also protected from direct flame from the fire.

Catalyst operating temperature: Our catalysts operate at temperatures between 1200 ̊ – 1400 ̊F, which is lower than traditional wood stove catalysts.

Catalyst construction: Our catalysts are made from sheets of coated stainless steel. They are designed to expand and contract through the cycles of operation indefinitely.