# The Most Expensive AC Setting to Use During a Heat Wave, Experts Say

> **Newsylist Open Intelligence Dossier** · First detected: 2026-06-28 12:06 UTC · Category: Business · Sources: 14 · Current Velocity: 14.03

## Executive Summary
Experts are sharing specific thermostat strategies to reduce energy costs and maintain comfort during extreme summer heat waves.

## Intelligence Brief
Homeowners are receiving guidance on optimizing air conditioning settings to lower energy bills. Advice includes adjusting thermostat temperatures and avoiding specific habits that HVAC professionals steer clear of during the summer.


Coverage from outlets including Martha Stewart, Better Homes & Gardens, and various local news stations like WGN-TV and WFLA emphasizes cost-saving temperature adjustments. The Coloradoan reports that experts recommend a setting of 78 degrees during the summer.


Future focus remains on the implementation of smart thermostats for 2026 and professional recommendations for efficiency during sleep, as highlighted by One Green Planet and AOL.

## Verified Facts & Key Claims
### What specific temperature do experts recommend for summer?
According to The Coloradoan, experts recommend setting the thermostat to 78 degrees.

### Are there specific tools mentioned to help lower costs?
One Green Planet discusses the use of smart thermostats as a means to save money.

### What is the general goal of these AC setting adjustments?
The goal is to bring energy costs down and maintain coolness during heat waves, according to The Boca Raton Tribune and other sources.

## Key People, Organizations & Locations
Most Expensive AC Setting, Use During, Heat Wave Experts Say, Thermostat That Pays for Itself Best Smart Thermostats, Thermostat Setting, HVAC Pro Actually Uses While Sleeping for Better Comfort and Efficiency, Things HVAC Pros Never Do When Using Their AC During Summer Heat, Keep Your Home Cool and Costs Down, Ideal Thermostat Setting To Make It Through The Brutal Arizona Heat, Bring Energy Costs Down

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| The Boca Raton Tribune | How to Bring Energy Costs Down in Florida Heat and Still Stay Cool | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMivwFBVV95cUxQMy11aDg0UEwwTGE1RWg0T2FVeVJDc2F0X0thX1lZLU10N3dXNEZIelhEa21Uc2hQVzJ1bWRvUC1RVTlFMGkxOGVqVk9mTTYzcGphd1B6bTNlZWZHZFVvaGNna3ZTZWtQZjh6elFwLVJkdUJBSWtyUmZqMFFPdEFya1FwaC0za1dTSVEtM243bTVFN0JsTlJHNTBILXhkamhsSUhoaDZmN0dsVFoxQmdhM3Zna2M1UEhUWDdsQTVUZw?oc=5) |
| Better Homes & Gardens | 5 Things HVAC Pros Never Do When Using Their AC During Summer Heat | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMiW0FVX3lxTE5XMm5rZ3VXaW9ITGRfNlhTZVJoQVNGbXJ1dzBfQ1lMSE5mWjFfNGZZQy13X2xKQ0tfMWxsQlIxb1hWa0FrUEJMMDFuWUVMcE1GdnEzMUFrdjJYc00?oc=5) |
| WGN-TV | How to adjust your A/C temperature to help save money | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMinAFBVV95cUxPVHpRUk51VlhJeHVCTXBWUnpfUTl5ZkNLUDlCc3J5NVBCZFhhQ3lIRHFRZnlidFV6aWhTZG9fYXlDNTAydmxNMXVhcVFoaFVtZzlZZTZQcHZUV0Q3SjF6Yll0eDdmZnVpZVZFVkRUV241Tm9pYW9mVnpxZEhOeGFmWlB3SlUzRlNRbFRDaUlIYUg2SXI2ay1oc3Jfc3fSAaIBQVVfeXFMTWxhVmNJQkYxVC1nYjI5NnZkYmVhanYzNUVUUFJwVUR4SFFsVWNILUJwbjZHVWdaZmZQaHF3OHVtcGs0eXl2LUVBS2xCeEZiVGxwVThCcGJCSVVHVDFPbnVUeTdfQktRem53SmVEY2VBZXdWV3EyLXFRb1RWcm50LThOdzZBMmYyUFF6bnpkb0Q2S2p6Ql9oa2t3dVNXQm1JdlRn?oc=5) |
| WFLA | How to adjust your A/C temperature to help save money | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMikwFBVV95cUxQVy1rTHBfN1JYSC1XU3pIMS1SRXdWR2NzLUVPLTFTNUFfMHNwTTVHU1RqSG1OWWRNWTg5bU9FeUN6VEhOUnVKV1dMYl9Sd0FWWjRTTTNLbFV1OHMwYlV6OVBSZXo5M1cwTjJJeUE5MDcwdU5sS0VKa3dTeXZpaTJlM3NRckdKeE5nNGpWTE5aQWNERGvSAZgBQVVfeXFMTXItY3VPY0xLSWVrWmFURHF0UUtZMVRBRl9MdUVvMG9nT3ZLRW92VEUzTWFscXRpM2tmMkZCYUFrLWpVRmVrT21HYzAxX1kwOVJ2NWZMTHFRUkUtc2VPak9RT3BiSV9GMkMybnM0Q0hqOGx1OGxNWGUyUmlaTHhzM2lGYzg2YXBjQ2ktaHhXRXU5ejRVU2xDQ0Q?oc=5) |
| WKBN.com | How to adjust your A/C temperature to help save money | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMimwFBVV95cUxQeTlDRUNfWG5kbDdvUC15b3NIdm5RZXlmUGNoZXBkUXZ3S3FVZk5kNE5Tb2JpZDAzNlNfLUJqelVZSmM3VFRyZjAtUm96ZkhzZVhnd3VBcmdCWlFWeWxrN0lmaDRVRW5oUWQ1RVgzcUh3dUtaLXRnTC0xX3p6NU1WSlFLRUc3SmVJMWdrTElsNnR4ekJlbXg2eEpzONIBoAFBVV95cUxPaHZhSWM2SjkwMENXaG14Z2REMXlXTEZmMzk2QW10Sy14SklsaHZubmtKRHRUX2JrMFBaZlg1N25tRXNNN1QxTm92RDgwTTl2dGxybGFHN3M3Qmw5WTFRVzhleTl1SElEcExIcDhmOFFacUlCWGdwQVVYUE5nN1RhNU9PV0J0M282UU9xOFA0b0Fvb3hVRjdmV1pqOFlqU3Bs?oc=5) |
| Flagstaff Business News | How to Keep Your Home Cool and Costs Down | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMiigFBVV95cUxQNF8wc1BhSUVCdHVPZUxFbkUxa3ZwNk5JZS1LUFhNTmRwNW1EeHVvMkpUNFNjWktIblRxdWJ1R3JpS3UwMm5nWXpuVGgtWVNHNmpxdnB5c0xhRnVTSlgyRnJsN2NzNEdKSGMtT0xpc0FwVEtiOFQxcHNGZ2VVQ05QSDFYRmcyR2h3YUE?oc=5) |
| WRIC ABC 8News | How to adjust your A/C temperature to help save money | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMilAFBVV95cUxPZThCeTFGdFpFUzRZQ3VBV2pXeEoyc1JmM2hWSmhBVDh0clVUZ0xQV1BhSzBBUGxGZjdtRWNqRnFhYXhnbVB5U0E4WVJ6RGhYSkNVS2RVWWw0Rm9WYV9XbHZSdkhUVDBnNjQ1NHJZNzljZzNISWM0YzBmR0VVaFdkMzBGVldUNWQwVER6UTVIZEU5ZjdE0gGaAUFVX3lxTFAtYW1fOHRPcEctYmtQRnkxbHhJTFJDbG9NaTNSU0tBSHVxSmtWc21RME9aS1VDRmhnZkc5N1g4M2RmLUtqSDJVdnFIRm45Y3I3dnZTUmhab2pHRGNmYmFiYm9IWE1LMEFDRkRCNHBBMHFkV2FvOXdzSmh4aHpMNktNTEZmX25RWldkZTJJYkg3UFN6REc2QVJhUkE?oc=5) |
| WSAW | How to keep energy bills down during the upcoming heatwave | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMijAFBVV95cUxNYzA0NEE0Z2RHQXhQRDQ0VkVjcUp6QkZaNWhxVXVzdVdVX2pLX2hwX1ZLOWJFNzcza1kwR1BwMUVuRS13TEpCcjljVFRZWko0Wk11QXdlcVhCT0s4cTZ5TGFodm5ZYWtHZDUzaEdVam5tSjkzeE1ZMGpOUGstWWl2TVp2WU9VQTRoSG5xNtIBoAFBVV95cUxOZ0RwOF9wd25uTzRTVDJlcExwLU9ZMkhiTkxGV2MwNE9xMlpVeHVWR0gwZUMwQlZDZl9zRTJGQUp6bm9ZejFaNW4zOGZBLXo4ZG1qTzlwQUNwcEh4SkFmbVRRN0pBRXBmenl4WXBtQklCVG5SLWJ3b2xESndJeTg5Y0h2dW5iTjhYWEJYR1ZnLWloVGdfOHJLOFNYWWcyWEFK?oc=5) |
| AOL.com | The Ideal Thermostat Setting To Make It Through The Brutal Arizona Heat | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMiiwFBVV95cUxQYzlCUU9zUzdQOGRfNVdkdTNDanpLM240bkRGR0pzdTVNclVBa1pxejc0LXFxQmxSdEQ3cU0xRzc5NHFOQlJLQnJMb0IzY25neHN3VC1Pb2ZZdzZ3cWkyNThDTzczUWVkaVphMFcxR0hONndxSXR2WDNkMDdHV0QybEY4azMyaXVUaGlJ?oc=5) |
| WAVY.com | How to adjust your A/C temperature to help save money | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMikwFBVV95cUxPWV9TV2E5NzZlbGI3LUNNVjd4Z1YwbjloU1AtMkRjN2NXQlVCT3FkMDFqWDVteTdBR2xqWkNJckh5Wm12ZXRxY0lrUEtUQUtxV1FJUzdkUlREdnVDaTJaLTczWl9HMWJCVHhfQUE0d3ZYc1ZUWHBvbGtDeElGM0hHU0V6OWU1d2NMQ2ZVVVVCMXJ5ejjSAZgBQVVfeXFMTmFTc09rUy1XVzNpeDdqalhReGpYRmpITElTTDVScVM0WWFSNWg2S1FJRjV4QkhSTmI4R3ozVWFsU2F2Y2lHdzFhV1RSVS1uQ3g3RDNISUlHVE8waVZCMjlEUUxxbzY1OE5VblRiV2dMQV9rQ3hQa2hzOElvTHRQLTFPZmx6bGV1dE5JTmExam9pdGEyeTVpTjc?oc=5) |
| KUSA.com | Here's how to set your thermostat to save money | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMiuAFBVV95cUxOUGZTRThRUXBVMHdEUW1zMV9xUkZVYXlNUGlMRVJYQkM3RjluU243OWM0NDJ2NjU1X2xJMzU3Y3hNLW9sNW5NUDkwa3FEaTBQdlJJVV9UWDJLOUZ2SWhNM1FTeUc1QWJIYlJvb29rbTg2UHd4elo2R19vRFltUmdwN2pBeFE2dVNqdTIxSGk5VmRYMlNZNGF3Nk8wZ05fdHdhN0JxTEhZMUNKSmJFZVF6VkhRWEZfMUdC?oc=5) |
| One Green Planet | The Thermostat That Pays for Itself: Best Smart Thermostats for 2026 | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMisAFBVV95cUxQQ1ZWWHBDS01xQjNWT05RcWRkck5lSWRJQUlWY1Y4UUNsWTZROFhfNjZ6RElWb0oxYlNKUjljV003WURJVjBmNWNkMGw5NnJ2SFVKbGgyVFk4ZjNYcllCNUtFYlZHOVpvWjJKek0yUDhCcU9Kc3Q5Tk1OaVF1d09VQmQ1ZmN5emtwUFNyZkRUZGxKQWx3QWRpUXhrTVNLblZhYlVrLUJabHpydl9FcmRNcQ?oc=5) |
| AOL.com | The Thermostat Setting an HVAC Pro Actually Uses While Sleeping for Better Comfort and Efficiency | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMihwFBVV95cUxOb2Nic183SGR1QkZmMnVkdl9hMm5lRkZuWldoYlNWWHZWZHNPRy1SakY1U1ZLRUhCa1ptRVRJOWJILWg0ZlpPM0VERVg5Rkxvcmc0MVNTY3hFcE4zZFAxeUV5OUdGZE9CZUpXMTQyZTAtT3pncmZJdzNqUFZEX2ZJc1JjRWpIRXc?oc=5) |
| The Coloradoan | Why experts recommend setting your thermostat to 78 degrees in summer | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMiwAFBVV95cUxPUENkMGNpaEtJR2ZxU3VzUk9BLU5DT0kySVlibFlRbmwwenhudUt3UTlUR0k3Uk5VU18xekFLUW9Pem1lRlQ2YWM4M1ZkNVM2VjJYX09PQUp3NVZJTWdVZzQ4cWppWlZxdW8yX0hqNE0ya1pmRjE1Q3RRZHZGZ2tQRzdCNmlSMzNJTkE4c2hXcEFRWk9HdzdDcS0ybmtlaGJOeERnU3NlVXBLS1psSFBHQ0Q2Qi12WnA3b3JKaEJMN1M?oc=5) |
| marthastewart.com | The Most Expensive AC Setting to Use During a Heat Wave, Experts Say | 2026-06-27 12:00 | [Source Link](https://news.google.com/rss/articles/CBMigwFBVV95cUxOT1BQZDhFRm5yeG1GMm8zblVsZHlsUlJlcFdTNDlJZmZldGpaYVhndVY1V2FGUTU3b1puUUdWeEFrUm5uM05JNDNsNXUyTnQyLUgwdU52Ykp1TG9rMllDeVdfeFBNdzFhLW1Md2xMcHJaRXhzSzd1VFNlNUh2cE9DOEVPTQ?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-06-28/the-most-expensive-ac-setting-to-use-during-a-heat-wave-experts-say*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*