Marx290 - GREAT find!
This is incredible and will lead to a vast array of small, highly efficient cooling (or heating) devices. Imagine several of these "daisy chained" (or in parallel) so that one can handle a very light load, then sequentially using each additional unit to handle increased loads. At about $168 each, three would be under $500 and highly competitive with existing "small" scroll compressors.
Each of these units (~500 watts) is the equivalent of ~1700 BTU, with three of them coupled together allowing almost 1/2 ton (5100 BTU). Then there is the inverter potential allowing it to dial into a small range of load.
I am unaware of a scroll compressor with these COPs under 12,000 BTU - or have I just missed it?
Now . . . . what about reliability . . . .
Steve
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consulting on geothermal heating/cooling & rational energy use since 1990
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