Finally got the PH up and running with a condor digital cat probe installed. Went through the hole in the rear of the stove up over the stainless baffle and down through the hole in the sheet metal, so far the cable has survived, we will see for how long. It is amazing how fast the temps come up from a cold start, 450 within five minutes, stove top temps at 150, however the cat stalls at this temp. It seems that 700 cat probe, 250 stove top ,300 pipe works the best. Once equalized the stove top temps seem to be half of the probe temps. The stove really performs as advertised, depending on the air setting, the stove bounces between cat and no cat operation. With active secondaries the cat takes a nose dive, temps will fall quickly from 1100 to 800. So with on over fire situation on the stove top simply open the air and move the fire back down to the firebox. The same in the opposite direction, snuff out the secondaries and the cat goes to pluto, which makes sense. Woodstock hit a home run with this one.