My first use of Series 4 version 2 from Lowe’s:
Weather: overcast, windy , 60 deg
At 225 setting and cap at 5 revolutions open:
The cabinet reads 225 and extra thermometer reads 197.(extra thermometer middle rack about two inches from glass)
I then tightened down chimney, temp of cabinet remained 225 but extra thermometer dived to 181.
I then reopened cap to 5 full revolutions. Cabinet temp plunged to 204; but extra thermometer started creeping up.
About 10 minutes later:
At cabinet 225: extra at 195
Cap unscrewed 2 more revolutions (total of 7)
After 2 hrs: 225 vs 207;
Temp raised to 300; extra temp 275.
Chimney extra two turns (total of 9)
I suspect that because cabinet thermometer near back, upper half of cabinet. When chimney closed, heat dome in upper half of oven - but bigger (wider) temperature gradient at thermometer relative to bottom of cabinet. When chimney open, more airflow and top of cabinet represents rest of cabinet (less of a temperature difference/gradient). Also: where I’m measuring temperature relative to the four vertical walls: close to glass should be the coldest (no vents from combustion chamber and only single pane glass insulation vs the back which is defacto insulated with metal-pellets-metal).
The bottom line: the PID controller worked great; it kept temperature rock solid after any changes or opening door to move meat.
Per the function of the wifi/bluetooth. It actually worked very well. There is some lag - but usually no more than 15 seconds. I went shopping miles away and app worked fine.
There was one time it seemed not to update when I was at home- maybe I just needed to wait another minute- but I just backed out of “live display” of control panel; re-entered and it immediately duplicated the unit display.
Per timer / recipe step. I didn’t use at beginning . But attempted to start an hour into process. There doesn’t seem to be a way to start timer unless you hold recipe button and make settings and start. But when I tried that, the temperatures plunged even though I had same 225 deg temp started. Maybe it resets the PID logic and it would take time to figure out the fan/auger rates. I didn’t want to greatly disrupt, so I didn’t use for rest of case (I shut unit off and then turned on to eliminate recipe.
Next time I will set up recipe at real initial startup.
Sorry for long diatribe but here are the salient conclusions:
Weather: overcast, windy , 60 deg
At 225 setting and cap at 5 revolutions open:
The cabinet reads 225 and extra thermometer reads 197.(extra thermometer middle rack about two inches from glass)
I then tightened down chimney, temp of cabinet remained 225 but extra thermometer dived to 181.
I then reopened cap to 5 full revolutions. Cabinet temp plunged to 204; but extra thermometer started creeping up.
About 10 minutes later:
At cabinet 225: extra at 195
Cap unscrewed 2 more revolutions (total of 7)
After 2 hrs: 225 vs 207;
Temp raised to 300; extra temp 275.
Chimney extra two turns (total of 9)
I suspect that because cabinet thermometer near back, upper half of cabinet. When chimney closed, heat dome in upper half of oven - but bigger (wider) temperature gradient at thermometer relative to bottom of cabinet. When chimney open, more airflow and top of cabinet represents rest of cabinet (less of a temperature difference/gradient). Also: where I’m measuring temperature relative to the four vertical walls: close to glass should be the coldest (no vents from combustion chamber and only single pane glass insulation vs the back which is defacto insulated with metal-pellets-metal).
The bottom line: the PID controller worked great; it kept temperature rock solid after any changes or opening door to move meat.
Per the function of the wifi/bluetooth. It actually worked very well. There is some lag - but usually no more than 15 seconds. I went shopping miles away and app worked fine.
There was one time it seemed not to update when I was at home- maybe I just needed to wait another minute- but I just backed out of “live display” of control panel; re-entered and it immediately duplicated the unit display.
Per timer / recipe step. I didn’t use at beginning . But attempted to start an hour into process. There doesn’t seem to be a way to start timer unless you hold recipe button and make settings and start. But when I tried that, the temperatures plunged even though I had same 225 deg temp started. Maybe it resets the PID logic and it would take time to figure out the fan/auger rates. I didn’t want to greatly disrupt, so I didn’t use for rest of case (I shut unit off and then turned on to eliminate recipe.
Next time I will set up recipe at real initial startup.
Sorry for long diatribe but here are the salient conclusions:
- temperature controller rock steady
- Chimney ventilation is important as to attaining set temperature; and the amount of temperature variation within cabinet. With chimney open, temperature set point occurs faster and entire cabinet closer to set temperature. The only negative would be increased rate of pellets used- but I believe not a significant, expensive difference.
- App worked. “Maybe” sightly flakey; but it worked well for me except “maybe” one instant in 6 hours.