We're testing and adapting the fw for hot environment as well. Here is a test in hot room we've done today:

40c inlet temp and 80c out temp?
FYI: in fahrenheit that's in=100 and out=176
And that is only for it being on for 11 minutes???
Something is not adding up...or you should've released it in the Fall and people would've been able to keep their whole home heated with just a few units.