Englander 32 Modification

[NickW]

Sweet! So still firing from the tubes, just not so robustly. So you shut primary air first, then the damper if necessary?

 

[weee123]

So pardon me if this is/are stupid question(s)...

Where are the volatiles combusting that would have been firing from the secondary air? If those volatiles are still combusting, how does it make it more controlled?

Not a stupid question. My secondaries are still getting enough air to fire properly as seen in the video below.

With the secondary air being more restricted it can’t pull as hard and as much volume with the primary air shut all the way down. When run unrestricted on some installs it will pull too hard causing an increase in temps which increases draft which increases flow which increases firing and temps in a spiral out of control

 

[NickW]

Not a stupid question. My secondaries are still getting enough air to fire properly as seen in the video below.

With the secondary air being more restricted it can’t pull as hard and as much volume with the primary air shut all the way down. When run unrestricted on some installs it will pull too hard causing an increase in temps which increases draft which increases flow which increases firing and temps in a spiral out of control

Right. Which was why I installed my damper. I went over 1000 flue and 800 stt once before the damper and that scared the bejesus out of me. Solved the problem except for the length of time it took to be able to get to my overnight settings.

I am at my overnight settings now 10 minutes after loading and hoping to not close up any more. We'll see if I have a takeoff in an hour and what my coals are like in the morning. I wonder if decreasing the secondary air, which will increase the doghouse and air wash percentage, might allow me to close the air control more...? So far things are looking good!

 

[all night moe]

Not sure why I’m able to get my flue temps lower and STT higher than you guys, just goes to show that every install comes with different running and burning characteristics

Is that single wall pipe? If so, I'm curious if you are loosing a bit of heat through the pipe before it hits the probe?