CentaurG2
Addicted to ArboristSite
Do you mean you still see snow melt? If so you still have something wrong with your underground. The good stuff gives up no heat, you should only see maybe a degree or two loss between boiler & coming into the house. And certainly no melt up top.
Yup. Close foam super insulated what not direct from CB themselves might not be as good as people think it is. But don’t tell anyone, I doubt they will believe you.