Even in the cold today I smoked a 25 lb batch of ring bologna and now I have a batch of polish sausage in it.
I do not smoke fish in the same smoker because if the oils it leaves behind in the smoker.
Plus I get all the liquid smoke I need for baiting bear!!
Propane or electric they will both do the job. I had a gas smoker and found it hard to keep an even temperature throughout(top to bottom) the smoker and I believe it ads moisture to the smoker. I use maple and hickory chunks for smoking sausage and sawdust for cold smoking.
I Like Electric and have nothing against propane. If the power goes out my Generac Generator kicks in.
I would also stay away form aluminum if you want it to last. It breaks down a lot faster than stainless. The first smoker I had was a Little Chief Smoker and it lasted about 3 years before I had to replace it.
Mine is built out of food grade stainless and is 14 years old. I have replaced the heating element 2 times. I smoke at least 500 lbs of sausage, some pork butts, briskets, and ribs every year.
Many times I start smoking a batch about 5:30 in the morning and it is just about finished when I get home after work.
Go out and look on the smoking forms and you will see many different smokers.
Good Luck!
You will not get a bark on your meats with an electric smoker and its not good for finishing our chicken, but I knew this going into this purchase. For me the benefit of consistent temp, and a timer made it a great fit for my lifestyle. Load it up - set temp. - and timer and it does its thing.
Smokers are not to be used indoors...... Do some research there area lot of forums that will teach you to use the various smokers, how to overcome the shortcomings of each to make delicious food. Use what works best for you.