Stack Temp

buderusKeith

I have a buderus 215/4 with a becket gun running a stack temp of 540 degrees!!!

Seems high for me is that normal or should I attempt to lower it??



Help......

Using the factory setup of a  1.1 tip with a 8/2 air setup

meplumber

A little high

That is high for a 3 pass boiler.  Do you have the baffles in?  Is your stack thermometer ok?  Normal stack temp for the 215/4 is around 400 after adequate run for a combustion test.

buderusKeith

Baffe in place

I have the two baffles that came with it in place and the thermometer I am using to the best of my knowlege is accurate.

I since have replaced the 1.1 tip with a 1.0 using the same 8/2 air settings and lowered the stack temp only slightly to 520.