Preheat smoker to 200 F.TIP - Be sure your smoker has enough pellets or wood chips! Running out during the cooking process can ruin your meal.
In a small bowl combine mustard and honey. Rub or brush onto the salmon, coating it completely (no need to do the skin side).
In another small bowl, combine chili powder, paprika, garlic salt, and pepper. Sprinkle over the honey mixture on the salmon.
Place seasoned salmon onto the smoker, skin side down on the grates.
Close smoker and cook for 90-120 minutes.If you want the finished fish on the moister side, cook for 90 minutes. If you want it flakier, cook for 120 minutes.
Remove to a wooden cutting board and allow to rest for 10 minutes.
Notes
When choosing salmon at the grocery store, look for a bright orangey-red color and the flesh should spring back when touched.