yep hot water has come in handy this spring/summer.normally i dont use it during the warmer months except on add ons and dirty first cleans but on some 8 weekly work near trees it helps a lot with tree sap,etc.
even on min settings its coming out at brush end at 50-60degrees(a lot lower in colder weather though).
i use gardiners standard microbore which is rated for both cold and hot water systems these days since they changed suppliers to a british company.really good hose.im well happy with it.no delamination etc.