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How to Install a Ventless Fireplace

If you want the ambiance of a fireplace, but not the maintenance required to maintain operating one, then a ventless fireplace is the choice for you.  There are gas and electric ventless fireplaces to choose from, so before purchasing one for install, verify if you have a gas line already running to your home.

While some warmth is given off from ventless fireplaces, keep in mind that this is not their primary purpose.  If the fireplace hearth is already in place, the installation of your ventless fireplace can be accomplished if you have moderate to advanced do it yourself skills.



  1. Select a design for your fireplace that will compliment your home’s decorum and existing furnishings.  As with any interior home furnishing, there are many styles of ventless fireplaces to select from.  Also keep in mind that some models sit lower to the ground, while others – typically those with a more modern look – sit higher up on the wall.  Browse a number of selections before making a purchase.

  2. Modify the hearth to match the design and style of your newly selected ventless fireplace.  The interior firebox opening should match your fireplaces specifications allowing between ½ to 1-inch of extra space.  Once installed, the fireplace unit frame will mask the extra spacing.

  3. Slide the firebox carefully and evenly into the opening of your hearth about halfway. Ensure that you locate the gas or electric hookup for your unit, and pull it through the side of the unit in order to connect it to the power source.  Once connected, slide the ventless fireplace unit the remainder of the way.  Ensure the unit is in place evenly and that it is sitting level in the opening.

  4. Complete the fireplace hearth trim as desired with tile, slate, or wood trim to match the décor.  As you complete the trim, ensure that it does not block any of the vents, which are on the front face of the fireplace unit, as this will keep it from operating at maximum efficiency.

  5. Review the manufacturer’s specifications to properly place the fireplace logs.  Airflow around the logs should be good, allowing the flames to be spread evenly throughout the firebox.