I'll have to check that forum out and see what people are saying there. I've only recently become motivated to start looking at solar, but I get more interested in it each and every day.
The ChilTrix system reminds me of what Daikin is (has) been doing in Europe for some time with their Altherma product. I've never installed or even seen an Altherma system in person (there's rumored to be one Altherma installation in my state). I can tell you that the cost differences between a Daikin Altherma vs ChillTrix system are pretty noticeable, and the Altherma system isn't designed or intended to be scalable.
I've been looking for a manufacturer that's producing a reasonably priced, inverter driven hydronic heat pump/chiller application for years...
FWIW, the Wilco USA Inc. sales rep. (parent company of ChillTrix) told me that the HVAC related internals of their AC/DC hybrid and straight DC mini-splits are utilizing Carrier/Toshiba components. I just mention this to further help those people that might still be clinging to a "large brand" mentality. Hopefully, people will start to understand that there are typically less than 5% of any particular manufacturers in any particular industry that are exclusively manufacturing the entirety of their own products... companies have been "re-branding" for so long that we often don't stop to question why or where it's occurring.