I admin a bee forum  on  (horrors !)  Facebook.    Recently,  many mite treatment threads have been interrupted by promotion of the recently patented electric-heater //  PID controller device patented by "Beehive Thermal Industries"    

The device heats the colony to 106 F for 2 1/2  to 3 hours,  and reportedly kills many Varroa.   I am familiar with some research papers going back into the 1990's on thermal limits to Varroa,  so the concept is not in doubt.  I have reviewed a google search  for the device --- photographs on one forum show plastic mite ridden frames "before"  and wood framed brood "after" -- a discrepancy that makes me instantly suspicious.

 I have been unable to find any independent test of the particular device now being word-of-mouth, social media promoted.    Reading between the lines, it appears the social posters are purchasing marketing territories, and much of their enthusiasm is colored by entrepeneurial self-interest.

I don't want to arbitrarily shut down what might be a viable treatment alternative,  but I am loathe to let a "chinchilla farm" style pyramid marketing fad explode all over the forum.

Can anyone point me to a balanced review.

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