Wood Stoves, Fireplaces, wood fireplaces

So, you’ve made the decision to invest in a wood stove, terrific! Now, where do you go from here? Well, besides the various shapes, sizes, top feed, side feed, glass door, or solid door models, there are basically two types of wood stoves — catalytic and non-catalytic.

Catalytic stoves have a catalytic combustor, similar to a catalytic converter in an automobile. The catalytic combustor is essentially a block of ceramic with a honeycomb core, placed inside the stove, near the top, and is the last thing the smoke particles and various gasses (created by the initial burn), pass through before being drawn out the chimney pipe. It’s during this final burn phase, or catalytic action, that the remaining gasses and smoke particles are turned into water vapor and carbon dioxide, providing a very clean exhaust, while squeezing one last bit of heat out of these remaining particulates.

Basically, those are the big pluses to owning a catalytic wood stove, you’re getting maximum efficiency, longer burn periods, with a very environmentally friendly exhaust. Downside to the catalytic woodstove? It requires you regularly cleaning the catalytic combustor (which is a relatively easy, although a little messy, monthly procedure) and replacing it every five years. This regular maintenance factor tends to make a catalytic stove the preferred choice of the serious wood burner, and for those folks who plan on using their wood stove as the primary heat source.

What happens if you don’t regularly clean the catalytic combustor? First signs of a problem will be gray smoke, then black, coming out of your chimney. This unhealthy situation indicates that due to the combustor being clogged, you’re basically operating a campfire, with the first burn gasses and smoke bypassing the final burn phase, and being simply released into the atmosphere.

Next, as the catalytic combustor becomes totally blocked, and the resulting air flow reduced, you’ll find the stove more difficult to start, with a greater potential for backdraft.

So, the catalytic woodstove may be the superior model of the two, but unless you’re ready to commit to a maintenance schedule, it’s probably best to avoid the catalytic model.

Non-catalytic wood stoves have secondary combustion chambers, instead of catalytic combustors, to help burn off those gasses and wood particles that make it past the first burn. The result is a stove that is still very efficient, and very clean burning, just with numbers not quite as impressive as a clean catalytic model. So, if we’re talking a secondary heat source, with little maintenance, other than having to empty the ash pan, the regular, non-catalytic woodstove, is probably your best choice.

What about buying a used stove, or using Grandpa’s old stove, in order to save a few bucks? Used car, used boat, used lawn mower, no big deal. When they die, you park them on the front lawn with a “best offer” sign on them. Unfortunately, when an old stove dies, or basically malfunctions, you die as well, so we’re not quite talking the same risk factor.So, you’ve made the decision to invest in a wood stove, terrific! Now, where do you go from here? Well, besides the various shapes, sizes, top feed, side feed, glass door, or solid door models, there are basically two types of wood stoves — catalytic and non-catalytic.

Catalytic stoves have a catalytic combustor, similar to a catalytic converter in an automobile. The catalytic combustor is essentially a block of ceramic with a honeycomb core, placed inside the stove, near the top, and is the last thing the smoke particles and various gasses (created by the initial burn), pass through before being drawn out the chimney pipe. It’s during this final burn phase, or catalytic action, that the remaining gasses and smoke particles are turned into water vapor and carbon dioxide, providing a very clean exhaust, while squeezing one last bit of heat out of these remaining particulates.

Basically, those are the big pluses to owning a catalytic wood stove, you’re getting maximum efficiency, longer burn periods, with a very environmentally friendly exhaust. Downside to the catalytic woodstove? It requires you regularly cleaning the catalytic combustor (which is a relatively easy, although a little messy, monthly procedure) and replacing it every five years. This regular maintenance factor tends to make a catalytic stove the preferred choice of the serious wood burner, and for those folks who plan on using their wood stove as the primary heat source.

What happens if you don’t regularly clean the catalytic combustor? First signs of a problem will be gray smoke, then black, coming out of your chimney. This unhealthy situation indicates that due to the combustor being clogged, you’re basically operating a campfire, with the first burn gasses and smoke bypassing the final burn phase, and being simply released into the atmosphere.

Next, as the catalytic combustor becomes totally blocked, and the resulting air flow reduced, you’ll find the stove more difficult to start, with a greater potential for backdraft.

So, the catalytic woodstove may be the superior model of the two, but unless you’re ready to commit to a maintenance schedule, it’s probably best to avoid the catalytic model.

Non-catalytic wood stoves have secondary combustion chambers, instead of catalytic combustors, to help burn off those gasses and wood particles that make it past the first burn. The result is a stove that is still very efficient, and very clean burning, just with numbers not quite as impressive as a clean catalytic model. So, if we’re talking a secondary heat source, with little maintenance, other than having to empty the ash pan, the regular, non-catalytic woodstove, is probably your best choice.

What about buying a used stove, or using Grandpa’s old stove, in order to save a few bucks? Used car, used boat, used lawn mower, no big deal. When they die, you park them on the front lawn with a “best offer” sign on them. Unfortunately, when an old stove dies, or basically malfunctions, you die as well, so we’re not quite talking the same risk factor.

 

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