Model 105

Rebhster
The hole at the top of 105 is just the vent hole for that sweet smoke to vent out of the smoker. It does look like you could conect something to it but it is just for the smoke.
Smokin' Harry

Rebhster,
If you visit this link, you will find the Operators Manual for your smoker model (you just have to scroll down the page a bit). You can also call us at 1-800-423-0698 and we'd be happy to help you get smoking.
Happy Smoking!
Cayley

Rebhster,

I have a 105 that I purchased used from a restaurant supply place. From what I can tell really the only difference between a 105 and the 150 versions is the temperature controller. The newer ones I assume are supposed to be improved in some manner. While I haven't closely monitored the oven temperature as best as I have been able to tell in a pure smoking operation the temperature seems to hold plus or minus 5 degrees. Way, way better than my Smokette which is more like 25.

In short it is a great smoker and will hold a whole lot of great Q.

Just did my first smoke this weekend, about 15# of beef ribs. 6 hours at 240 and they were PERFECT! Learned a lot form this site!

I also have a 105 are they the same (only older)as the 150 ??? she's still going strong I smoked a ham in it the other day and have smoked 40# + of ribs and chicken and everything has come out great except I over smoked some homemade sausage once...Ka ka !