I haven’t tried these yet, and I use the Heinz Chili sauce in my meatloaf and I know that one doesn’t have the fish sauce in it. So, I’m not sure what type you are looking for. Here are two similar but different
http://allrecipes.com/Recipe/fresh-tomato-chili-sauce/detail.aspx
http://allrecipes.com/Recipe/fresh-tomato-chili-
sauce/detail.aspx
This one is supposed to be like the Heinz Chili sauce so I may have to try it.
http://www.food.com/recipe/chili-sauce-192123
Thai Sweet Chili sauce is very different from the U.S. standard Heinz Chili sauce. I wouldn’t consider them interchangeable at all.