Minisplit operating advice
We are in the first Vermont winter with out Misubishi heat pumps. Having experienced less efficiency and poorer heating performance than expected, the installation contractor provided a follow-up visit. We had been turning the thermostat down by several degrees overnight to reduce electricity use. However, the contractor advised that we should leave the thermostat set at the same temp as during the daytime to maximize efficiency. They indicated that more electricity is required for the unit to recover to the desired daytime temp than would be saved by lowering the thermostat overnight. However, I’ve more recently seen advice from Mitsubishi that the set point should be reduced 4-6 degrees overnight to maximize efficiency. We’d like to resolve this conflicting advice.
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