Cap on Thu Dec 06, 2007 8:42 pm
I don't get it. Why are everybody's stack temps so high burning coal?
I use a good quality Ashcroft 5" dial with a 4" probe threaded into the stack pipe. So I know I am sensing flue gas temps which are ALWAYS 140F to 160F. Even lower when I have the damper cranked in.
coaledsweat on Tue Dec 04, 2007 8:24 am
I lose about 100* in the stack after the baro even when closed.
Cap wrote:Greg--You are on the mark once again, ( Rick too ). I just checked my log from last winter. My stack temps were relative to the hot air output with a steady increase as the heat output would rise. For example, 24F ambient at 0600hrs on 12/10/06. Hot air 200F, stack 290F. 12/11/06 @ 0600hrs, 35F ambient, hot air 132F, stack 160F. 12/20/06, 25F ambient, hot air 185F, stack 250F.
I think I'll move the thermometer this Sat. JC told me the deep mined coal burns hotter but this is the first time I compared notes from the strip mine coal I used the last 4 years. Deep mine is solid 35F-40F warmer temps.
I also seen your Photo of your baro and wanted to tell youCap wrote:JC, The baro is level, the camera was cocked. Actually its such a tight connection when I installed it, I quit trying to make it perfect. I nearly busted the the baro when installed this season trying make it level.
But with the weight moved to the right, it seems to be holding closed more than with the weight on the left side. I'll know more in the morning. My eyesight ain't what it used to be. I never would of missed that 5 years ago. I need readers for any work I do up close. It's depressing.
What new topic can we talk about for the next two days?