Have you guys heard of ......

ScottMP

designs are very open to discussion and very affordable.

Scott

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David Sutton_6

Tubing

Have any of you guys used or had dealings with Radianteck out of Vermont i have a custermer that wants to use this product He will istall the tubing and i will be installing the heating system i will be surppling the boiler and mixing stations and inderect, i want to make sure hes getting a good product, i did not see anything listed on there site about oxygen barrier..
the site is radiantec.com

Thank you for any imput!!

David

ALH_4

Radiantec

Radiantec is infamous on The Wall. Do a Wall search for "radiantec" and display 200 results. There has been a ton of discussion about them.

I have not had any direct dealing with them or their 7/8" tube, but their design methods and materials are absolutely the least expensive possible.

David Sutton_6

Thanks guys

Seems to have been a hot topic, still got alot of reading to do,

Talked with HO and seems he will be looking elsewhere,

David

Rick Kelly_4

Radiantec

If they are still using that 7/8" PE tubing, I would take a moment before considering to go that way. That size tubing has a very large bend radius which can be very unforgiving. With a large bend radius, don't expect to install tubing much tighter than about 16" on center. If you kink that pipe, which is highly likely, you will need to cut it and install a barbed connector to rejoin it. This is Alzheimer tubing, no memory at all. And while I mention barbed connectors, that is how you will be terminating it on a relatively crude manifold set. To get a good fit, warm the pipe enough to make it slightly pliable. Warm it too much and the pipe will collapse.

By the way, while you're figuring out all the money that you or the homeowner is saving, don't forget to add the cost of all non-ferrous components, no steel or cast iron boilers or circulators or a SS flat plate heat exchanger since you will be installing tubing without the properties of an O2 barrier.

After doing a few of these systems I came to the conclusion that the only one making money is Radiantec. The installation time is significantly longer, perhaps by a factor of 2x and in the end what you have is a half **** system.