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The temperature inside has to stay above 45 degrees for it to work properly. I keep mine on 62 degrees.
Sorry, there was a problem. Please try again later.These models use a heat pump for heating, which will not operate effectively when the outside temperature drops below 41°F. At 10°F, the heating function will not work. You can disconnect the intake hose and allow the unit to draw air from the room to reduce the impact of low outdoor temperatures. Please contact our Customer Support Team, available Monday - Friday 8:30 AM - 4:30 PM PST at 1-866-WHYNTER (1-866-949-6837) and at [email protected] if you have additional feedback or questions, we can assist you with. We are here to provide support and ensure you will be satisfied with your Whynter product.
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