I suppose it could be possible but many different factors would play into keeping the temp stable and where you want it. Air temp, wind, humidity, burner etc. Wouldn't it be better to rig up/use significant and effective insulation? The thermal mass of the volume of water and weight of grains that you'd have going, to end up with a 10 gallon batch, should hold temp really well if properly insulated. Then again, that might also make it easier to maintain temp with a burner on low, too
Only done stovetop BIAB, 2.5 gallon batch myself and found adding heat as needed, stirring and being very attentive, helped me keep a reasonably constant temp over the hour.