[richard jagger]

The reason we have a problem with these hoses is because we all have a different system no company accommodates these differences. As for hot water well how hot is hot. P U hose is fine at 65 degrees and less,  but a hose that will withstand some of the hot systems would have to be made of a metal and will not  be flexible. Remember many of these systems are new to our industry, and we are working in an exciting time of development.