If you know even a little bit about the operation of the heat pump that keeps your household cool in summer and warm in winter, you’ll understand that the outside unit needs to absorb heat from the ambient air and carry it indoors in order for it to work in heating mode.
Should you notice that there is ice developing along the outdoor cabinet of the heat pump, it may worry you. Is this normal during the winter?
The answer is, confusingly, both yes and no. But we will quickly unconfuse you below: