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Performance

Do heat pumps work in a real winter?

6 min read · by the Status support team

A heat pump moves heat from outdoor air into your home. Status systems keep heating down to −13 °F outside, and the 27K outdoor unit is rated for 27,000 Btu/h of heat at 47 °F. Whether that covers your winter depends on how cold it gets where you live and how much heat your home loses, so if a Status system will be your main heat, call us and we'll check the numbers for your home.

What actually changes as it gets colder

As the outdoor temperature falls, two things happen gradually: the maximum heat output declines, and each unit of heat takes more electricity to move. A mini split putting out its full rated heating capacity in the 40s delivers less of it in the single digits, which is why sizing for your winter, not your summer, matters in cold climates. Tell us about your climate and existing heating when you size a system, and have the equipment's output checked against your home's heating load.

The defrost cycle (don't panic)

In cold, humid weather the outdoor coil grows frost, and a few times an hour the mini split briefly reverses to melt it. You'll hear a whoosh, see steam rise off the outdoor unit, and indoor heating pauses for a few minutes. This is normal operation, not a fault, and it's why the outdoor unit should sit on a bracket or pad above snow line with drainage underneath, never in a low spot that ices.

Why this beats resistance heat on your bill

Electric baseboard converts one unit of electricity into one unit of heat, by definition. A heat pump moving heat typically delivers a multiple of that for the same electricity in moderate cold. What that saves you depends on your electricity rate and how cold your winters run; call us and we'll estimate it for your home.

Cold-climate setup notes

  • Mount the outdoor unit above your typical snow depth, with overhang or clearance from roof shed.
  • Keep the coil side clear; it needs airflow more than it needs shelter.
  • Let defrost water drain away; don't trap it in a tray that freezes.
  • In heating-heavy homes, run zones steadily rather than deep nightly setbacks.
Questions this didn't answer? Contact us: sizing and install advice is free, before and after you buy.