Bottom Line: it depends on how hot you plan to run the water through the PEX lines you're installing. The PEX itself will have a temperature rating, as will the fittings and insulation you use. Double check that all of the parts are rated well above the hottest temperature at which you'll be operating your system. I went through this same process and currently have this product installed on PEX lines in my hot water heating system throughout my house. Other Tips: 1) Also, be sure that if it's installed near any other heat sources, that those sources don't exceed the temperature ratings of your components. 2) Make sure to oversize the holes you drill through the joists (not too big to weaken the structure, but larger than the OD of the PEX used for your hot water heating system. Where that's not possible, be sure to install plastic insulators(examples: https://www.homedepot.com/p/SharkBite-1-2-in-Plastic-Pipe-Insulator-10-Pack-23074A10/202032971; or https://www.homedepot.com/p/Apollo-1-2-1-in-Universal-Plastic-Insulated-Stud-Suspension-Clamp-10-Pack-APXSUSCLAMPU/305755921). The issue is that as the PEX heats up, it expands and will rub against the hole you drill in the joist. It releases and audible noise while heating . This is especially a nusiance at night when heating is most active and you're trying to sleep (I speak from experience here). 3) Along those same lines, be sure to leave some extra tubing at turns and bends, to allow for that expansion and not to stress your lines. Stress in your lines can weaken them over time through fatigue. 4) Finally, always be sure to pressure test your system and use a mixture of water and soap spray on all fittings to find any leaks before insulating and filling your system. Also, fill your system while the walls are open and start your heat and go through several cycles, which will allow you to address any issues before closing the walls up. Hope this all helps. Good luck!
I don't think it is. I covered mine with metal duct tape for UV protection. to get a UV protected I think you would have to go to your HVAC repair company.
I'm not an expert but it's just insulation, I don't know why not.
I covered it with a wood cover because my chickens ate the last one. No need for paint.
Good single around the heat exchanger pipe.
As far as I can tell after checking online these are NOT UV rated. I covered mine with silver duct tape to try to protect them.
I have mine over a water pipe heat tape and its been like that for the last year or more. No problems here.
it is a good product
It depends on which one you are installing but I found way more information than I could ever need on their website...http://www.armacell.us/products/tubolitss/