A heat pump will work in cold weather. Because the climate in Theodore AL is generally warm, these units are a feasible alternative to a furnace or boiler. However, even in Alabama, the temperatures may dip below freezing during the winter. Heat pumps work in all temperatures, but a supplemental heat source such as electric heat strips are needed in very cold temperatures.
Some units utilize a gas powered backup furnace that provides heat when the temperatures drop below freezing. Other units have resistance coils built into the system. These coils provide supplemental heat during cold weather. However, with the temperatures in Alabama, the supplemental heat sources are not used very often.
Energy Efficiency
Heat pumps have become so popular with homeowners because these units are more energy efficient than furnaces or boilers. A heat pump in Theodore AL is an energy efficient way to heat your home. The U.S. Department of energy states that, unlike furnaces, these units are as much as three times more energy efficient than conventional heating systems. Furnaces consume energy to produce heat. Heat pumps, however, repurpose heat that is already available in the ground or air. Therefore, the ratio of electricity to heat produced is much higher for these units than for conventional heating systems.
Technological advances have improved the efficiency of these systems even more in the past 30 years. These advances include:
Improved Coil Design
Variable Speed Blowers
Thermostatic Expansion Valves
Two-Speed Compressors
Improved Electric Motors
Grooved Copper Tubing
New Technologies
Certain air source pumps are manufactured to be used in cold temperatures. These “cold climate” and “all climate” systems were designed with a consideration for freezing temperatures. These units have resistive heat plates installed, along with other features, that enhance the effectiveness, even in sub-zero weather. These units do not need a supplemental heat source or backup furnace and will save the homeowner as much as 60 percent in energy costs to heat the residence.
Other Considerations
When installing an air source or ground source system, the placement of the outdoor unit can impact the energy efficiency and performance of the system. Install the compressor in an area that shields the unit from strong winds. Strategically place the compressor near a fence or behind a bush to block the wind. When installing the unit as an add-on, place the unit on the furnace’s “cold side” to maximize energy efficiency. Select a unit with demand-defrost controls. These controls will improve energy efficiency by minimizing defrost cycles and reducing the amount of auxiliary heat used.
Regular Professional Maintenance
Air source and ground source pumps require regular professional maintenance, as well. The efficiency and efficacy of these units will decrease over time if not properly maintained. An HVAC technician will adjust the fan speed and clean the evaporator coil during an annual tune up. Have your unit tuned up each year to keep the system performing well. Call Action Heating and Air Conditioning for regular professional maintenance for your Theodore AL heat pump.