{"id":1988,"date":"2024-02-24T14:44:00","date_gmt":"2024-02-24T19:44:00","guid":{"rendered":"http:\/\/dandelionenergy.com\/geothermal-air-conditioning-what-you-need-to-know"},"modified":"2025-09-26T16:26:18","modified_gmt":"2025-09-26T20:26:18","slug":"geothermal-cooling","status":"publish","type":"post","link":"https:\/\/dandelionenergy.com\/geothermal-cooling","title":{"rendered":"Geothermal Cooling: Everything You Need To Know"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Did you know that you can use your yard to cool your home in the summer?\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">We\u2019ll give you a thorough rundown of all things geothermal AC. This includes: what is it, how it works, how it compares to conventional AC, and how it differs from geothermal heating. We\u2019ll also help you understand some of <\/span><a href=\"https:\/\/dandelionenergy.com\/blog\/geothermal-disadvantages\"><span style=\"font-weight: 400;\">the major advantages of geothermal AC, including efficiency, cost, convenience, comfort, and sustainability<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><b>I thought geothermal was for <\/b><b><i>heating <\/i><\/b><b>your home. Can geothermal be used for <\/b><b><i>cooling<\/i><\/b><b>?\u00a0<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Yes! <\/span><a href=\"https:\/\/dandelionenergy.com\/dandelion-air\"><span style=\"font-weight: 400;\">Your geothermal heat pump is actually a two-in-one HVAC system used for both heating and cooling<\/span><\/a><span style=\"font-weight: 400;\">. Despite the name, geothermal \u201c<\/span><i><span style=\"font-weight: 400;\">heat<\/span><\/i><span style=\"font-weight: 400;\"> pumps\u201d are just as effective at cooling your home in the summer as they are at heating it in the winter!\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Just to recap, <\/span><a href=\"https:\/\/dandelionenergy.com\/how-geothermal-works\"><span style=\"font-weight: 400;\">geothermal heating works by moving temperature-conducting fluid through an underground loop of pipes beneath or near your home<\/span><\/a><span style=\"font-weight: 400;\">. This allows the fluid to collect the thermal energy deposited in the earth from the sun. This works well even in the coldest winters because the earth below the frostline is a steady 55 degrees Fahrenheit all year long. The heat is circulated back into the pump and then distributed evenly throughout your home using your duct work.\u00a0<\/span><\/p>\n<h2><b>How does geothermal cooling work?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Now, for the big question: how does the same geothermal heat pump that heats your home in the winter also produce AC for the summer?<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Essentially, the heat transfer process works in reverse. As air is circulated through your house, your heat pump removes the heat and transfers it to the fluid circulating to the ground. As the ground is at a lower temperature (55F), heat dissipates from the fluid to the ground. The experience of cold air blowing into your home is the result of the process of removing heat from the circulated air, transferring that heat to the ground, and returning cool air back to your home.\u00a0\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Here\u2019s a slightly longer explanation: The cycle begins when the compressor inside your heat pump increases the pressure and temperature of the refrigerant. This hot refrigerant moves through the condenser, where it comes into contact with and transfers heat to the ground loop fluid. This fluid is then circulated through your ground loop piping where it releases heat to the ground.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">But back to the heat pump. After transferring heat to the ground loops, the refrigerant moves through the expansion valve. This step decreases both the temperature and pressure of the refrigerant. The now cold refrigerant then travels through the evaporator coil to come into contact with the hot air inside your home. The heat from the air inside is absorbed by the cold refrigerant leaving only cold air. This cycle repeats until your home reaches your desired temperature.<\/span><\/p>\n<h2><b>How does geothermal cooling compare to conventional air conditioning?<\/b><\/h2>\n<h3><strong>Efficiency\u00a0<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">When it comes to efficiency, geothermal AC beats conventional central AC by far. Your geothermal heat pump isn\u2019t wasting electricity trying to pump indoor hot air into the already-hot outdoors. Instead, it\u2019s easily releasing heat into the cool underground.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Your geothermal heat pump will always be effective and efficient at cooling your home, even in the hottest summers. <\/span><a href=\"https:\/\/www.energy.gov\/energysaver\/choosing-and-installing-geothermal-heat-pumps\"><span style=\"font-weight: 400;\">Installing a geothermal air conditioner can reduce your electricity use by 25 to 50 percent!<\/span><\/a><span style=\"font-weight: 400;\"> Taking advantage of geothermal cooling is a great way to <\/span><a href=\"https:\/\/dandelionenergy.com\/geothermal-operating-costs\"><span style=\"font-weight: 400;\">avoid those painful spikes in your utilities bills<\/span><\/a><span style=\"font-weight: 400;\"> over the upcoming hot summer months.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The greater the Energy Efficiency Ratio (EER), the more energy output you\u2019re getting from your HVAC system compared to how much energy input it requires to run. An HVAC system with a EER of 3.4 is at the break-even point. (This is where it produces as much energy as it requires.) <\/span><a href=\"https:\/\/www.energy.gov\/eere\/femp\/incorporate-minimum-efficiency-requirements-heating-and-cooling-products-federal\"><span style=\"font-weight: 400;\">Geothermal AC systems typically have EERs between 15 and 25, while even the most efficient conventional AC systems only have EERs between 9 and 15!<\/span><\/a><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/energystar.zendesk.com\/hc\/en-us\/articles\/212111387-What-is-SEER-EER-HSPF-\"><span style=\"font-weight: 400;\">You may have heard of a few other efficiency measurement methods<\/span><\/a><span style=\"font-weight: 400;\"> out there, such as Seasonal EER (SEER) and Coefficient of Performance (COP). However, all these different acronyms are just a confusing result of industry non standardization. Essentially, they all serve the same function. So, no matter what measurement method you use, the efficiency rankings of HVAC systems are still the same, and geothermal wins out every time.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The more efficient your HVAC system is, the more bang you\u2019ll get for your buck! <\/span><a href=\"https:\/\/dandelionenergy.com\/geothermal-operating-costs\"><span style=\"font-weight: 400;\">Choosing an efficient HVAC system with a high EER like geothermal AC will help you minimize your monthly cooling bills.\u00a0<\/span><\/a><\/p>\n<h3><strong>Cost\u00a0<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">It\u2019s important to note the difference between upfront and operational costs. Upfront cost translates to a one-time cost (or multiple installments), while operational cost recurs monthly. Conventional HVAC systems tend to have a lower upfront cost but higher operational costs, while the reverse is true of geothermal HVAC systems.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In the end, geothermal AC usually works out to be much more affordable than conventional AC. While there is a higher upfront cost, there are very low operational costs. These savings of geothermal AC become immediately clear when you see your electric bill. (<\/span><a href=\"https:\/\/dandelionenergy.com\/blog\/geothermal-heat-pump-electricity-usage\"><span style=\"font-weight: 400;\">Geothermal heat pumps lower your electric usage in the summer!)<\/span><\/a><\/p>\n<p><span style=\"font-weight: 400;\">The best part is, after several years, <\/span><a href=\"https:\/\/dandelionenergy.com\/geothermal-pricing-guide\"><span style=\"font-weight: 400;\">your geothermal system ends up paying for itself in savings!<\/span><\/a><span style=\"font-weight: 400;\"> We call this time the \u201cpayback period\u201d.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Other relevant cost considerations are the <\/span><a href=\"https:\/\/dandelionenergy.com\/geothermal-state-federal-tax-incentives\"><span style=\"font-weight: 400;\">federal, state, and utility incentives offered to homeowners who upgrade to geothermal HVAC<\/span><\/a><span style=\"font-weight: 400;\"> from conventional systems. Geothermal does not burn fossil fuels to heat and cool buildings. These renewable energy programs often use financial incentives to further encourage homeowners to upgrade and go green. The financial incentives further reduce geothermal\u2019s upfront cost while operational cost remains the same. This means that your geothermal \u201cpayback period\u201d shortens even more \u2014 in some cases, it becomes as short as five years!\u00a0<\/span><\/p>\n<h3><strong>Convenience\u00a0<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Geothermal is pure convenience compared to conventional HVAC. If you could simplify and reduce the number of bits and pieces required to achieve the same results, why wouldn\u2019t you? In conventional HVAC, different appliances serve different functions. These various moving parts play their part depending on the season.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Perhaps you heat your home using a central furnace powered by natural gas, electricity, or even oil. Or maybe you have a boiler, which runs on natural gas, fuel, or oil. Maybe you use gas-fired or electric space heaters in addition to a wood-burning stove or fireplace.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Then, in the summer, none of this equipment is used and your attention turns to the central air conditioner with its various parts, both inside and outside. At a minimum, conventional heating and cooling require two distinctly different systems for different seasons.<\/span><\/p>\n<p><a href=\"https:\/\/dandelionenergy.com\/how-geothermal-works\"><span style=\"font-weight: 400;\">A geothermal system is made up of only two parts: ground loops and a heat pump.<\/span><\/a><span style=\"font-weight: 400;\"> This simple and convenient system can provide both heating <\/span><i><span style=\"font-weight: 400;\">and <\/span><\/i><span style=\"font-weight: 400;\">cooling. As a result, you save money, space, and so many headaches. Instead of installing, operating, and maintaining at least two separate pieces of HVAC equipment in your home, you could just have one that serves your home year-round.\u00a0<\/span><\/p>\n<h3><strong>Maintenance and Lifespan<\/strong><\/h3>\n<p><a href=\"https:\/\/homeguides.sfgate.com\/long-should-furnace-air-conditioning-unit-last-92434.html\"><span style=\"font-weight: 400;\">Conventional central air conditioning systems typically last between 12 to 15 years<\/span><\/a><span style=\"font-weight: 400;\">. Often, the main components significantly degenerate within the first 5 to 10 years, causing a steady decline in efficiency. They also require more regular maintenance and are more likely to incur damage as the compressor is exposed to the elements.<\/span><\/p>\n<p><a href=\"https:\/\/dandelionenergy.com\/geothermal-operating-costs\"><span style=\"font-weight: 400;\">A geothermal cooling system pump lasts well over 20 years, and the underground looping system lasts well over 50 years.<\/span><\/a><span style=\"font-weight: 400;\"> These systems need little to no maintenance, and their protected parts last longer while maintaining high efficiency.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">One reason for a geothermal system\u2019s extended lifetime is its protection from the elements. The ground loops are buried deep underground and the heat pump is sheltered indoors. Both parts of the geothermal system are far less likely to suffer seasonal damages due to fluctuating temperatures and abrasive weather patterns.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In contrast, conventional AC units are left above-ground and outdoors, so exposure to the elements causes increased wear and tear. As a result, regular system maintenance is encouraged, if not required.\u00a0<\/span><\/p>\n<h3><strong>Comfort\u00a0<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Conventional AC units have a reputation for being noisy, but it\u2019s no secret why they\u2019re as loud as they are. <\/span><a href=\"https:\/\/www.grc.nasa.gov\/www\/k-12\/airplane\/heat.html\"><span style=\"font-weight: 400;\">Conventional AC units are fighting a perpetual uphill battle against science<\/span><\/a><span style=\"font-weight: 400;\"> by pumping indoor heat into the hot outdoors, and consuming massive amounts of energy in the process.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Geothermal AC systems are much quieter because they direct hot indoor air into the cool ground. Instead of worrying about overworking your AC, you can relax and enjoy the refreshing comfort of a quiet, cool home in the summer.\u00a0<\/span><\/p>\n<h2><b>What are the environmental and health impacts of geothermal AC?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">There are no negative health impacts of geothermal cooling, and no net negative environmental impacts either!\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Geothermal HVAC systems use only the earth\u2019s temperature and electricity to generate heat or AC for your home. In some cases, geothermal HVAC may still not be fully renewable because some utilities providers only supply electricity sourced from nonrenewable energy.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">However, Geothermal still uses far less nonrenewable energy than conventional HVAC systems that burn large amounts of fossil fuels. So, in the big picture, using geothermal instead of conventional AC reduces your environmental footprint.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Geothermal is also better than conventional HVAC when it comes to impacts on human health. When you run conventional combustion heat in winter, it produces carbon monoxide \u2014 a poisonous gas that can cause illness or even death. <\/span><a href=\"https:\/\/www.cdc.gov\/co\/faqs.htm\"><span style=\"font-weight: 400;\">Carbon monoxide is odorless, tasteless, and colorless, so it\u2019s often undetectable until it\u2019s too late.<\/span><\/a><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Meanwhile, geothermal HVAC systems don\u2019t burn fossil fuels at all, whether in the winter or in the summer. With geothermal, there are no health hazards to you or your loved ones!\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The air quality inside your home remains pure, as there are no fumes or particulate matter created by burning fossil fuels.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This applies not only to the air quality of your home, but also to our atmosphere in general. Upgrading to geothermal HVAC is one of the most impactful things you can do to support a healthier environment. <\/span><a href=\"https:\/\/www.energy.gov\/energysaver\/home-cooling-systems\/air-conditioning\"><span style=\"font-weight: 400;\">Air conditioners in the U.S. alone release over 100 million tons of carbon dioxide into the atmosphere each year<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<h2><strong>Is geothermal right for you?<\/strong><\/h2>\n<p>Geothermal offers a safe, sustainable <a href=\"https:\/\/dandelionenergy.com\/more-homes-using-heat-pumps-as-cheaper-greener-alternative-to-fossil-fuels\">alternative<\/a> to conventional AC, which harms both the environment and human health.<\/p>\n<p><span style=\"font-weight: 400;\">Thinking about upgrading to geothermal AC for the summer? Now\u2019s the time to reach out and get more information about geothermal cooling for your home. <\/span><a href=\"https:\/\/dandelionenergy.com\/see-if-your-home-qualifies\"><span style=\"font-weight: 400;\">Get in touch with us here!\u00a0<\/span><\/a><\/p>\n<p><span id=\"hs-cta-wrapper-e9317a10-9dd3-4802-b6ab-dd0bba8401ad\" class=\"hs-cta-wrapper\" style=\"display: flex; justify-content: center;\"><span id=\"hs-cta-e9317a10-9dd3-4802-b6ab-dd0bba8401ad\" class=\"hs-cta-node hs-cta-e9317a10-9dd3-4802-b6ab-dd0bba8401ad\"><!-- [if lte IE 8]>\n\n\n<div id=\"hs-cta-ie-element\"><\/div>\n\n\n<![endif]--><a href=\"https:\/\/dandelionenergy.com\/see-if-your-home-qualifies\"><img loading=\"lazy\" decoding=\"async\" id=\"hs-cta-img-e9317a10-9dd3-4802-b6ab-dd0bba8401ad\" class=\"hs-cta-img\" style=\"border-width: 0px;\" src=\"https:\/\/dandelionenergy.com\/wp-content\/plugins\/import-hubspot-blog\/inc\/cta.svg\" alt=\"New call-to-action\" width=\"249\" height=\"50\" \/><\/a><\/span><\/span><!-- end HubSpot Call-to-Action Code --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How does geothermal air conditioning work? Why does air conditioning use so much energy? Can air conditioning be sustainable? Can you use the ground to cool your home? Dandelion answers your questions<\/p>\n","protected":false},"author":24,"featured_media":4447,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[54],"tags":[122,121,6],"class_list":["post-1988","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-post","tag-geothermal-ac-vs-conventional-ac","tag-geothermal-air-conditioning","tag-geothermal-cooling"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Geothermal Cooling - Everything You Need To Know<\/title>\n<meta name=\"description\" content=\"Did you know you can use your yard to cool your home? 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