I cook a lot on the top of my Harmon MKII, mostly stews, soups, chili and spaghetti sauce. This works out well even when the surface temperature of the stove top is down to 200 F during the warmer weather. Most of the time I use a wire shelf from an old toaster oven to keep the pots from touching the stove top and burning the contents.
I also have an oven that consists of an old charcoal grill cover that I use to bake beans. The grill cover is not insulated so to get the oven to baking temperature (275-300) I have to get the surface temperature of the stove up to 500. This is no problem when the outside air temperature is below 20F but when it gets above that the house can get uncomfortably warm.
The cover-off picture shows the bean pot sitting on a piece of refractory insulation. This keeps the beans in the bottom of the pot from getting burned.
Also and because I am in maple syrup country I use real maple syrup in my baked beans.