Excellent post! I've been struggling with a roach infestation in my kitchen and was deciding between thermal vs chemical pest solutions (wiki.attentioncapique.lespredys.org link for more info) vs insecticide options - after researching how high temperature treatment uses 120 to 140 degrees for 6 to 8 hours to reach behind appliances while chemical treatment for cockroaches requires multiple visits, I'm thinking about the one-and-done approach despite the higher upfront cost since it doesn't develop resistance and has lower respiratory risks for my kids and pets - though I'm also considering how heat treatment penetrates wall voids versus targeted chemical approaches for cockroach colony knockdown.