heat pumps in extreme cold

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    Using wood stove and daikin minisplit in excessive cold

    Hi All! Happy New Year! It's cold in CT! Daikin heat pump system installed in this 1, 253 sq ft two floor ranch house last March. 36,000BTU, 17.7 SEER. Two units with multi-heads (3/4) to cover seven rooms. Now it's being tested. Says it is efficient down to 5 degrees. It is 3 degrees...