Ok, my own personal performance comments. I own a King model in a 2850 sq ft house built in 1895. The stove is 14 years old, as is the cat. R value is about a C-.
After 4 years of burning NIELS, I elected to go back to cordwood. (I still inventory NIELS for my wife as I travel quite a bit. 270 days last year).
Today, I decided to tackle every service/repair we recommend. I HATE that I let the fire go out for the first time in many winters. I let the NG furnace warm the house.
First, I emptied all the ashes and hot coals. Then I slid up the slip joint in my double wall pipe. I reached inside and dropped the flame shield. I pushed on the back of the cat (gently...it is old) from inside through the flue collar and removed the cat. It was a tad bit stubborn...after so many years.
I then unhinged the by pass plate. My King was made before we began using by pass retainers. Turned the plate side ways and slid it out through the combustor opening. The reason I did this was to see how hard it would be to install a replacement by pass plate. While the old plate was out, I dug out the 5/8" rope gasket, it was VERY compressed after 14 years. Took all of 30 seconds to clean out the channel and using high temp silicone, I dropped in a new gasket.
Then, put a new by pass plate into the stove through the combustor opening. First attempt snagged my new gasket, so I had to be a bit more careful on try #2. Turned the plate into the correct position, connected the 3/8" stainless by pass crank rod and lifted the by pass hinge pins into position behind the locators. I then wrapped the combustor with a new gasket and taped it down with 2" wide masking tape. Although I never had any issues, I went ahead and put in the by pass plate retainers. I slid the cat into place, scrubbed the flame shield and put it back into place.
The next step, I replaced the door gasket. I did this 5 years ago and had adjusted it many times, so it was compressed. Backed out the latch bolt, put anti seize on the the threads and set the tension using the grandsons dollar bill. I don't have any because I have grandkids.
I then lathered up the by pass crank rod and ramp with anti seize, set the tension using my 7/16" box wrench and dropped the pipe and got a match. Entire process was 1.5 hours, including a trip to my local stove factory for parts!
Happy to report, no flame, 1047F cat on medium low burn, no smoke out of the stack.
What am I going to do tomorrow?