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[american-pacemaker]

Hey SlimJim I am still struggling to get my stack temp over 215 deg    My temp is set to 190 with a 5 deg diff and high limit of 210 deg. My air box is 4 turns on the bottom and 5 turns on the top. My wood is dry and I have tried hardwood and mixing in pine. I also have a lot of creosote or at least I think so. The heat exchanger has a real fine brownish and grey powder on the shelf if that helps. Any suggestions ? Thanks for all the help on the phone last week.

[slimjim]

As long as there is no moisture in the heat exchanger, you are fine! The temp probe may not be accurate.

[american-pacemaker]

Thanks SlimJim, it was nice to have to open windows xmas day instead of listen to people bitch the house is cold !!!!!!!!!!

[Winalov]

I had the same problem with stack temp. My OPT 250 heat exchangers were equipped with those stainless steel  blades.                 
I stopped using them in lower HE. That helped the situation. Also keep that thing clean.
Not to much ashes on the bottom of the fire box.
Ho , ho, ho with wind below ZERO rigth here in NJ Dallas Cowboys and Man United Country
HAPPY NEW YEAR !!!!!!Keep the fire burning!!!!!

[JTS717]

I guess i'm not sure why you want your stack temperature higher.  Mine is around 230 after I clean the tubes and usually around 250 before cleaning.

[american-pacemaker]

Slimjim said to try to keep it around 260 and clean the boiler around 300 when I bought it.

[coolidge]

I can't get mine above 230 when it's clean. As long as no creosote forms in the pipe you should be good.