3 ms·
>> The prototype delivers 100% heating at 5°F at double the efficiency, and 70% to 80% heating at -5°F and -10°F. Double the efficiency of what? All existing t
by osigurdson 4y ago
>> The prototype delivers 100% heating at 5°F at double the efficiency, and 70% to 80% heating at -5°F and -10°F.
Double the efficiency of what? All existing technology or something else? Do they simply mean the COP is 2.0?