Catalytic vs. Non-Catalytic Wood Stoves

If you're in the market for a wood stove or fireplace, chances are you've heard the terms catalytic and non-catalytic. Both are types of combustion used by stove manufacturers.

Catalytic Fireplaces and Wood Stoves
A catalytic stove or fireplace sends the exhaust from the fire through a honeycomb-shaped converter built into the unit. Inside the converter, the smoke gases and particles are heated again and allowed to burn, resulting in a longer fire with a more even heat. Catalytic units, because of this "recycling" process, also result in less pollutants as output and more overall use of the fire's energy.

Catalytic wood stoves and fireplaces are more expensive and require more maintenance than non-catalytic. The converter must be cleaned regularly, and garbage or dirty wood burned in the stove will result in faster degradation of the internal parts. With the proper care, a catalytic stove or fireplace can last for several years.

Non-catalytic fireplaces and wood stoves
Far more common on the market and less expensive, non-catalytic units are less efficient but much simpler to maintain. These units are heavily insulated and have a large baffle that results in a very hot flow of gas, resulting in a fairly efficient fire if used correctly. Unlike catalytic units, all exhaust is simply sent out, resulting in higher pollutants and less even heat; however, many people prefer non-catalytic units simply because they produce a beautiful roaring fire.

Choosing the Right Stove or Fireplace
If you're not sure whether to choose a catalytic or non-catalytic unit, consider the amount you're willing to spend and how much maintenance you're willing to do versus the type of fire efficiency you want. Those who are interested in maintaining their stoves and like the idea of efficient fires with little waste will want to invest in catalytic units. Those who appreciate the roar of a good fire but don't want to break the bank should lean towards non-catalytic. Either way, make sure that the stove or fireplace you choose is of good quality and is designed to meet all emission standards.