Cat temp roller coaster

[RandyBoBandy]

So I got to my cabin last night and fired up the difiant. Ran great. Cat peaked at about 1625 and ran really well. This morning when I closed the damper the cat temps shot up to 1100 and then fall to 875 almost as fast. Then it will climb back up to 1100 or so an then fall again. And rise again and fall again. I'm thinking it keeps stalling and lighting off again?

 

[fire_man]

Could draft be changing - due to weather conditions or some in-house fans? I could see this happening when temps outside are high because draft is poor, or if it was windy.

 

[Adahn]

I can't seem to get my get my WS Fireview cat temps much above 1000F, but the tip of the Condar probe is a good 2" from the cat.

 

[Highbeam]

I can't seem to get my get my WS Fireview cat temps much above 1000F, but the tip of the Condar probe is a good 2" from the cat.

I believe that the tip is supposed to be 1/2 to 3/4" from the cat. Really close.

 

[RandyBoBandy]

It's 22 degrees out. No wind for the most part. I'm going to have to let the stove go cold so I can take the cat out and clean it I guess. That won't be until 9 pm though.