Posted 1/21/2025 09:00 (#11066235 - in reply to #11065375) Subject: RE: Heated outside slabs ?
EC IL
Makes you wonder if this would be a good application of a ground thermal loop 10-12' deep with no extra heat source at all. Here we supposedly have 55F degree ground temps, so in theory, you should be able to pump just glycol through the slab and transfer the warmth from deep below ground back to the slab. Down to 15 degrees it should work, then turn off the pump??