In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I'm going to be ripping out the old oil furnace in my new home and replacing it with a cast iron hot water boiler. I've decided to use Pex (Raupex), but I was wondering about insulation. Is the closed-cell foam Armaflex typically used on reefer and plumbing pipes rated for constant 180 degree water? Is there a high temperature variant more suitable for hydronic systems?