Hey Mad Dog

tombig

The picture of you straddling those two snow melt boilers when the the East Coast was getting hammmered early this year was priceless. I should have saved all of them. What was the construction method? Pavers on sand and crushed limestone? Was the tubing in the sand bed? I've got an 8 unit garage heat and snowmelt and my thinking is a concrete base for the driveway (to four garages)for structural integrity. How deep was the tube on your install? In the sand bed? In the substrate? Inquiring minds want to know.


Thanks in advance.....................TG

Mad Dog

The layers went like this........................

crushed rock (gravel), 2" polystyrene insulation board, 6" wire mesh, tubing, 3-4" of poured, reinforced concrete, after that dried for a few days...1 1/2" of "dry pack" almost dry mixture, brick pavers, sand worked in to the joints. I'll dig that picture uop for ya.....Mad Dog

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tombig

Thanks MD

I was telling the GC that concrete should be poured for structural reasons. Small drives and patios sometimes just have compacted fill, dry pack, and sand. Apparently you had no problem with heat transfer through all that material above the tubing. I thought I recalled a wirsbo sketch that showed the tubing in the sand bed but that was under a slab. Did you consider the tube above the slab in the dry pack?


TG

Mad Dog

Yes, but both I and the concrete contractor wanted the tubing

to be encased for better protection. No problem with heat transfer. Mad Dog

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Mad Dog

Yes, but both I and the concrete contractor wanted the tubing

to be encased for better protection. No problem with heat transfer. Mad Dog

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