Traditional air-source heat pumps can provide reliable heating when outdoor temperatures are moderately cold. However, once the weather reaches subzero temperatures, heat pumps suffer a drastic loss of performance due to frost accumulation on their outdoor units.
As techs familiarize themselves with the nuances of a heat pump, there are a few common problematic areas they must concentrate on to ensure the equipment runs efficiently and effectively for years to come.
The following remarks were made regarding the article “Is Raising Heat Pumps Really Necessary?” written by Robin Boyd, HVAC consultant, published May 23, 2011.