I currently have the inexpensive brinkmann verticle smoker. I am having trouble maintaining constant temp. I have to "reload" the charcoal approx every 1 1/2 hours. I'm using lump charcoal. When I open the door to reload the coal the temp drops down to 150 degrees or so and takes 30-45 mins to regain the 220 temp! well then I only have 45 min or so of constant temp before I have to reload again. I feel this is why I have a hard time getting larger cuts of meat over 155 degrees. Is there anything I can do to alter the smoker to help with this problem or will I just have to deal until I can afford a better unit?? Thanks for the help!! Patrick If only I could find a way to get paid more for doing less, I beleive everything else would work itself out.