I'm converting an old gas char-Broil outdoor grill,now used as a charcoal grill, to an electric smoker. See details. Answered
For my initial design I'm using junk box parts (electronic hobbyist/pack rat). The heating element is a 120vac, 500w burner previously used as an electric charcoal lighter. The grill cavity is 15"H x 14"D x 25"W, with two rack heights leaving room for the burner, water pan, and possibly lava rocks/bricks.
The question is about temperature control. I understand 500w may or may not be enough. I'm considering a DIY full wave open loop SCR control, as I have many of the parts. The purely resistive load is @2.4-2.5 amps and should be able to be temperature controlled using demand oriented transfer or phase angle firing w/diacs. I want maximum control cheaply and am having trouble selecting an appropriate design. I have larger current SCR's in case I need a larger wattage elment.
What can contributors suggest?