Catalytic burn question

[iceisasolid]

If the bypass for a cat stove is to remain in the open position until a particular temperature- due to the catalytic combustor needing a specific temp to ignite... then what happens at night when the stove temp drops below the ignition point of the catalytic unit? Does this put some users at risk of having smoke from the stove puff back into the home?

 

[Woody Stover]

Once the Cat is lit off, it'll continue as long as there's enough smoke to burn, regardless of firebox temp. When the Cat goes out, it's because the fuel is coaling and not supplying smoke, so no danger of a back-puff.

I think.

 

[raybonz]

If the bypass for a cat stove is to remain in the open position until a particular temperature- due to the catalytic combustor needing a specific temp to ignite... then what happens at night when the stove temp drops below the ignition point of the catalytic unit? Does this put some users at risk of having smoke from the stove puff back into the home?

No you will not backpuff because this.. I run my stove like this daily and have never seen it backpuff when near the coaling stage.. Backpuffing is a very occasional thing on most stoves if you burn dry wood and keep an eye on the draft.. Burning large amounts of small size wood will cause this and wet wood will cause it.. Very windy conditions can cause this if you have tall trees or other obstructions near your home too causing a down draft..

Ray

 

[Backwoods Savage]

I agree. At the end of the burn, there is no smoke for the cat to ignite. Just forget it once you turn it on until you reload the stove again. No harm will be done. Also, you will not get backpuffing at the end of the burn; it is at the start and perhaps up to the middle of the burn when you get this. Hopefully you never get it.