Arlington TX Heat Pumps
Heat Pump Installation, Repair & Maintenance
As with all our services, Metro Express Service aims to exceed your expectations with heat pump installation, service and repair. A heat pump is part of an HVAC system that moves heat from one location to another within the home via mechanical parts. The two common types of heat pumps are air-source heat pumps and ground-source heat pumps, which are sometimes referred to as geothermal heat pumps. Both types work to heat your home in the winter and cool it in the summer. Metro Express Service’s professional local technicians are skilled in the maintenance, repair and installation of both types of heat pump systems.
Air-source heat pumps pull heat from the air outdoors and bring it into the home during the winter and shift indoor air outside during the summer. A geothermal heat pump extracts indoor heat during the summer and draws heat from the ground into the home in the winter.
About Heat Pumps
Heat pumps contain a refrigeration system consisting of a compressor and two coils of copper tubing, surrounded by aluminum fins that aid in the transfer of heat. These coils closely resemble the radiator in a car. Just as in refrigerators and air conditioners, refrigerant flows through these pipes to and from outdoor coils. When the heat pump is in heating mode, heat is gathered in the outside coils and moved into the home, where the refrigerant evaporates into gas. As it condenses back into a liquid, indoor coils transfer heat to condition the air. A reversing valve near the compressor changes the direction of refrigerant flow to cool during the summer or defrost outdoor coils in the winter.
Air Source Heat Pumps
Air source heat pumps provide efficient heating and cooling in warm climates, such as Texas. When installed properly, an air source heat pump delivers 1 ½ to 3 times more heat energy to a home compared with electrical energy consumed. This is because heat pumps move heat rather than converting it from fuel. This exploits the physical properties of the refrigerant.
Absorption Heat Pumps
Essentially air-source heat pumps, absorption heat pumps are driven by a heat source like natural gas, propane, and solar or geothermal heated water rather than electricity. Absorption coolers work on the same principal but are not reversible and can’t be used as a heat source.
Ground Source Heat Pumps
Instead of using outdoor air, geothermal heat pumps transfer heat to and from shallow ground, using the earth as a source of heat in the winter and a coolant in the summer. This takes advantage of the moderate temperature in shallow ground, giving the system a huge boost in energy efficiency and leading to reduced operational costs.
Exchanging heat with the ground is very efficient because underground temperatures remain stable throughout the year, despite climate changes. Like caves, shallow ground is warmer than above ground air in winter and cooler than air above ground in the summer.
Refrigerants
Compounds used in heating cycles that undergo phase changes from gas to liquid and back are known as refrigerants. In the phase change, the refrigerant either gives off heat or absorbs it, depending on the stage in the cycle. The main use of these chemicals are for refrigerators and freezers, as well as air conditioners.
Originally, widely used refrigerants were discovered to cause ozone depletion (in the 1980s), but these chemicals have been phased out and replaced with more environmentally friendly refrigerants.
With questions regarding your existing heat pump and its efficiency or about replacing your current system or installing a brand new heat pump, call Metro Express Service. We offer fast, reliable service from qualified, friendly HVAC technicians in Arlington TX and would be happy to answer your questions and offer you and estimate or home system inspection to better understand your needs.
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