Good, report back when you do. Inquiring minds want to know. These look powerful and it would be something that I would try with the hose handy.
Will be bringing our old 12' TV sat dish out to the front and put it in the traffic circle. Hope when I get it lined with Mylar(have mirrors if it works well) to reach several hundred degrees at the apex. If it works well it will get a tracking system and a sealed water line to the transfer box in the heat ducts.