Update from the dead-
5 loops under 1800 square feet of concrete, all hold pressure, and ironically, it's been too cold
to do the sealing and finish work to seal up the floor and get a wood stove going!
But the barn's structurally done. The concrete finisher scored the surface, so I'm going
to embed temperature sensors into the scores. I didn't put them into the
slab itself, and then regretted it. But I want to seal the surface where he scored
it, so I've got some tiny sensors, some tiny wire, and a lot of flexible concrete
'crack sealer' and I'll see how it goes. One active and one passive sensor
per zone, roughly in the middle of each. Just for fun.
One thing I learned: when dealing with permits and inspectors,
I didn't think about the ramifications of putting part of a heating system
into a building that was permitted as 'unheated'- I had a heating inspector
who looked at it, made a note, then said "I was never here- this is an unheated building"
winked, and drove off. I can imagine one with less of a sense of humor would
have made my life a lot more difficult...
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