Are there any updates on the progress of the second demonstration house?
I am most curious about the effectiveness of the air tube floor heating system.
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The house is now standing, it is the first house built of our new prefab modular kit houses available across Canada and the US. you can see a full break down of the mechanical systems, energy performance and total carbon footprint on this page here -
Zero Carbon Homes - The S1600 Prefab Eco Home is affordably Close
There have been Legalett air-heated floors across Canada and the U.S. since the mid-70s, and even longer in Sweden where the company originated, so there is nothing new there; it's the addition of the solar air panels that is new at this point. We expect to see about 60-70 % of the heat load but we won't know for sure until the winter of 2020 - 2021 when they are in full operation.
I imagine you saw the installation video of the slab on grade kit here as well as the radiant tubing.
Thanks for the reply. I noticed this new demo house is 2 stories. Is the Legalett system also supplying radiant air heating for the second story? Or is there a supplemental heating system for floor #2?