stack temps with cat stoves

[saichele]

For those with stack thermometers on cat stoves, what happens when you go from bypass to cat mode? Does the stack temp increase or decrease?

Steve

 

[seaken]

I would expect the stack temp to increase a little when you close the bypass damper. The Catalytic fire is quite hot. However, stack temps can also be quite high if you are burning with the damper open and have lots of flame licking up into the flue.

 

[stoveguy2esw]

its been my experience that they stay about the same as the cat temp , so when engaged the cat will increase temp and the flue will stay right with it

 

[Todd]

When I hit light off temp and engage the cat, the stove pipe temp drops quite abit. Usually from 500 or so down to 275-300, then the stove temp starts to climb. Some how that cat keeps the heat in the stove and gives up just enough for draft.

 

[EatenByLimestone]

I've noticed the same thing with my stove. I can't explain why except sometimes the fire licks the inside of the stove pipe when the baffle is open. I can't recall ever over heating my stovepipe with the cat engaged. I know I've cooked it a few times when it was open.

Matt

 

[Shane]

I haven't been burning a cat stove this year, but the Leyden we've been burning will lose temp when the bypass is closed too. It goes from around 800-1000 down to under 400. The stove holds a constant 500-650 depending on the air setting.