How to seal stove pipe

[RustyShackleford]

The flue needs the added heat to operate efficiently. Double wall pipe should be used with a blaze king.

Disagree. Single-wall can work. It works for me. I have to be a little careful when reloading: turn the air intake up high a few minutes before reloading (before you head outside to get the wood), don't jerk the door open, avoid reloading when there's active yellow/orange flames. But it's worth it to me because of the extra radiant heat and not having to hassle with double-wall pipe.

I was second-guessing this awhile back when the single-wall was needing to be cleaned more than once a year, but it turned out my cat needed replacement.

 

[BKVP]

There are lots of folks here that have seen significant positive performances switching from single wall to double wall.

For new install, we recommend dbl wall 100% of the time. If someone has single wall, try it and see if it works. If not, you knew going in the dbl wall can really help, depending upon the install.

BKVP

 

[RustyShackleford]

Threadjack, but @BKVP you often warn against a leaky door gasket, and I think you've said one reason is it wears out the cat. Can you explain why that is ?

 

[BKVP]

Thermal shock. Air leaking around the door gasket is room temperature. When that room air, say 75F hits the surface of combustor, which might be well over 1,000F, the result is thermal shock to both substrate and wash coat (which binds precious metals to substrate).

Great question!

BKVP