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Can you install tubing under a slab on grade foundation to extract heat in winter?
Jennifer Cole
Published: Aug. 28, 2019, 11:34 a.m.Last updated: Aug. 29, 2019, 9:28 a.m.
Can tubing for a ground source heat pump be put under an iso-slab slab on grade foundation to extract winter heat
Hi Jennifer
We generally recommend people check with an engineer for any such matters, but that shouldn't be a problem at all. Installing tubing for a ground source heat pump (GSHP) under slab on grade foundations as well as ground loops for HRVs and ERVs, can be a an easy way to harness the heat of the ground without needing to do any additional excavation. I would mention it to the slab form kit manufacturer, I can't imagine it being a problem but getting them to sign off on it ahead of time is not a bad confirmation to have in your back pocket just in case!