It’s often been reported that heat pumps can handle both heating and cooling in the most efficient manner. This is basically true, but there is a caveat involved. Heat pumps tend to lose their heating efficiency as temperatures drop below freezing. Fortunately, Phoenix, AZ and surrounding communities possess the perfect climate to take advantage of the heat pump’s best assets.
Sizing Up the Local Climate
With summer temperatures soaring past 100 degrees Fahrenheit, cities like Tempe and Scottsdale definitely benefit from air conditioning. What’s equally important to remember is that overnight winter temperatures normally drop into the lower 40s with some nights experiencing lows in the 30s that clearly demand additional heat.
A heat pump tackles both operations with a single unit. The installment of one device instead of two individual units saves money initially while also keeping down maintenance costs over the long haul. Additionally, it uses much less electricity when heating than the usual electrical resistance heating many home in the region rely on.
The Secret Behind Heat Pumps
The simplest way to think about heat pumps is to imagine them as air conditioners that can redirect their exhaust heat into the home in winter. These machines work by collecting residual heat from outside and moving it indoors or gathering indoor heat and expelling it outdoors. In the heating mode, the pump passes a refrigerant at low pressure through an outside coil where it absorbs heat from the surrounding air that’s forced past it by a fan. So long as this refrigerant is colder than outdoor air, heat will flow into it. With the refrigerant warmed, it’s then moved to a compressor that pressurizes it to raise its temperature. The heated fluid next runs through an indoor coil where a fan assists in transferring the warmth to the home. Finally, the cooled fluid is depressurized to drop its temperature further for the next round of exterior heat absorption. When functioning as an air conditioner, the heat pump reverses this process.
Recycling With Heat Pumps
Utilizing existing outdoor heat instead of generating extra warmth makes heat pumps more efficient than baseboard heaters. Heat pumps reach maximum efficiency at around 50 degrees Fahrenheit but easily capture heat at lower temperatures. With nighttime temperatures in this part of Arizona nearly always staying above freezing, there’s sufficient warmth for the heat pump to effectively draw from.
Also with the summer months upon us and the weather getting warmer it's usually a good time to check your heat pumps now before we cool down again after the summer.
If you have any heating or cooling repair needs in Arizona call our heating and cooling experts today at 602-244-9900