I just found this on Ebay and was curious as to opinions. Item number: 360066868785
It is 5 3/4 OD which would fit into 6" pipe. You get 40 feet for $115. I have not contacted them to see what kind of R value it would have, but I'm thinking no more than R8 at the outer edge of the OD to where the edge of the PEX will be.
My plans are to place my boiler in a room on the side of my pole barn and then run it about 120ft to the house and then eventually pour a slab in the pole barn for in slab heat.
This is an additional option that I may be looking at. I can do this for cheaper than my first option by $150-200.
The first option I have is to get the "cheaper" wrapped insulated stuff in the 4" tile at $774 for 150ft and then put that into a second pipe(I scored some 1" thick walled NG pipe REAL cheap).
Any thoughts will be greatly appreciated.
Anyway this is an GREAT sight with a ton of information.
Thanks
Mike
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