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Heat Pumps 101: Air Source vs. Ground Source

Heat Pumps 101: Air Source vs. Ground SourceUsing a furnace to heat your home in winter can keep it cozy, but it can also lead to higher utility bills. Heat pumps provide a way to warm up homes at a lower cost. Should you go with an air-source heat pump or a ground-source one for your Peachtree City home?

Learn more about the differences between these heating systems.

Heat Source

Air-source heat pumps pull heat from the air outside your home and bring it indoors. Ground-source heat pumps take heat from the ground and move it inside your home. Both heat sources are renewable forms of energy, making them cleaner and more environmentally friendly than natural gas and other fossil fuels. Keep in mind that you might need to rely on electrical strips or a similar secondary heat source if your air-source heat pump isn’t able to warm your home, which can happen during periods of extreme cold.

Heating and Cooling

Air-source and ground-source heat pumps are both able to heat homes in winter and cool them off in summer. This means you don’t need to run and maintain a separate air conditioning system. A heat pump takes hot air from your home and moves it either outside or into the ground.

Heat Pump Installation

Air-source heat pumps tend to be easier to have installed compared to ground-source ones. You can have your air-source heat pump set up outside your home just as you would have a central air conditioning unit installed. Ground-source pumps require a more complicated installation process. These systems have pipes that need to be installed in the ground, which involves excavating part of your yard.

Heat Pump Costs

A ground-source heat pump typically costs more than an air-source heat pump due to the installation process. Both types of heating systems can save you money in the long run thanks to reduced energy bills and more efficient heating compared to gas and electric furnaces.

If you’re trying to decide between an air-source heat pump or a ground-source one for your Peachtree City home, please contact Powers Heating and Air.

Our goal is to help educate our customers in Peachtree City, Georgia and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about other HVAC topics, download our free Home Comfort Guide or call us at 770-487-2040. 

Can an Air Source Heat Pump Warm Your Home Enough in Winter?

Can an Air Source Heat Pump Warm Your Home Enough in Winter?When it comes to keeping your home comfortable and energy efficient, there are various routes to take. It’s important to keep your home well-insulated, naturally and you might consider having a home energy audit done. You may even decide to have your outdated furnace replaced. If this is the case, why not consider a more energy-efficient option, such as an air-source heat pump?

Rather than using fuel to create heat, an air-source heat pump works by extracting heat from the air outside. The heat from the air turns liquid refrigerant, stored in coils, into gas. When the refrigerant turns back to liquid it gives off heat, which is then used to warm the home. This is extremely efficient up to a certain outdoor temperature, normally around 40 degrees F. Below that point, backup heating is needed, so a secondary system will have to be installed.

Another type of heat pump is the reverse cycle chiller, which heats and cools water instead of air and operates better in colder temperatures than an air-source heat pump. And cold climate and all-climate heat pumps both work efficiently in extremely cold temperatures. Still, there’s little need to worry about such dramatic drops in temperature here in Georgia!

One thing to keep in mind with an air-source heat pump is the balance point, where the capacity of the heat pump (which decreases as the temperature drops) and the heating needs of your home (which increase as the temperature drops) intersect. On average this usually ranges from 27-35 degrees F. Once the balance point is reached, backup heating such as an adapted gas furnace, oil burner or electrical heating will kick in. You can lower your balance point and lessen the need for the backup system by checking for and repairing drafts, installing more insulation, sealing gaps in doors and windows – anything that will help keep your home warmer.

If you have questions regarding heat pumps or any other aspect of your home’s HVAC system, please contact us. Powers Heating & Air has been serving the Peachtree City area since 2001, and we’d be happy to serve you.

Our goal is to help educate our customers in Peachtree City, Georgia and surrounding areas about energy and home comfort issues (specific to HVAC systems).

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