Geothermal Design

[MikeHolm]

Howdy andy,
Now it think it comes down to cost. If the budget can include ground loops, go for it. What I would rather see (just because of personal interest) is a ASHP with a solar hot water to bump up the COP when able. I love the idea of telling the utility to stick it up their a...... when the sun is shining.

Oh BTW, look at the loop spacing fot the radiant. In an "normal" home here the typical installer wil have tubing at 300mm in a thick slab. I was really taken aback when BigFreeze and nd others would talk about 100mm but now I am a convert, well at least to 150mm anyway, sometimes closer. Check to see what the locals say about spacing.