A few questions about setting the draft, stove pipe temp

I have a few questions that some of you may be able to answer for me.

I bought a used Efel Kaminor stove and the previous owner told me to never turn it above 4 or the stove will over heat. I have it set at 4 now and the stove pipe is at 140 degrees about a foot above the stove. Could I turn the stove up? Should the draft setting be dependant on the chimmney? It's 72 in my house now but I am worried when it gets colder I may need to turn it up. I am using less than a bucket a day so far so does it sound like to burning too hot? I thought it would use more coal. How is the best way to adjust the Baro Dampner?

Thanks
Dan

for me not using or having a draft indicator of some sort is like driving without a speedometer in a car.

what does your owners manual say about how to set up the proper draft.

mine says to set it up to -.04-.05 with a draft meter. if you know a burner tech ask him to stop by and have a beer and while he is there ask him to check your draft. or you could call a oil burner company and have them set it for you at a small cost.